./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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 0.1.23-635dfa2 [2018-12-08 08:56:55,108 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 08:56:55,109 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 08:56:55,115 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 08:56:55,115 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 08:56:55,116 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 08:56:55,116 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 08:56:55,117 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 08:56:55,118 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 08:56:55,118 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 08:56:55,119 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 08:56:55,119 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 08:56:55,119 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 08:56:55,120 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 08:56:55,120 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 08:56:55,120 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 08:56:55,121 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 08:56:55,122 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 08:56:55,122 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 08:56:55,123 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 08:56:55,124 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 08:56:55,124 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 08:56:55,125 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 08:56:55,125 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 08:56:55,125 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 08:56:55,126 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 08:56:55,126 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 08:56:55,127 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 08:56:55,127 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 08:56:55,128 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 08:56:55,128 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 08:56:55,128 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 08:56:55,128 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 08:56:55,128 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 08:56:55,129 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 08:56:55,129 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 08:56:55,129 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-12-08 08:56:55,136 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 08:56:55,136 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 08:56:55,137 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 08:56:55,137 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 08:56:55,137 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 08:56:55,137 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 08:56:55,137 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 08:56:55,138 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 08:56:55,138 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 08:56:55,138 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 08:56:55,138 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 08:56:55,138 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 08:56:55,138 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 08:56:55,138 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 08:56:55,138 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 08:56:55,138 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 08:56:55,138 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 08:56:55,138 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 08:56:55,139 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 08:56:55,139 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 08:56:55,139 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 08:56:55,139 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 08:56:55,139 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 08:56:55,139 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:56:55,139 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 08:56:55,139 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 08:56:55,139 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 08:56:55,139 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 08:56:55,139 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_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:56:55,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:56:55,166 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:56:55,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:56:55,170 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:56:55,170 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:56:55,170 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-12-08 08:56:55,211 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/data/1afffab48/882e195374e74479be0407da8fcb744c/FLAGf440fddf4 [2018-12-08 08:56:55,649 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:56:55,650 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/sv-benchmarks/c/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-12-08 08:56:55,658 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/data/1afffab48/882e195374e74479be0407da8fcb744c/FLAGf440fddf4 [2018-12-08 08:56:55,669 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/data/1afffab48/882e195374e74479be0407da8fcb744c [2018-12-08 08:56:55,672 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:56:55,673 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-08 08:56:55,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:56:55,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:56:55,675 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:56:55,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:56:55" (1/1) ... [2018-12-08 08:56:55,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f3ca699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:56:55, skipping insertion in model container [2018-12-08 08:56:55,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:56:55" (1/1) ... [2018-12-08 08:56:55,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:56:55,710 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:56:55,938 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:56:55,949 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:56:55,982 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:56:56,012 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:56:56,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:56:56 WrapperNode [2018-12-08 08:56:56,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:56:56,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:56:56,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:56:56,013 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:56:56,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:56:56" (1/1) ... [2018-12-08 08:56:56,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:56:56" (1/1) ... [2018-12-08 08:56:56,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:56:56" (1/1) ... [2018-12-08 08:56:56,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:56:56" (1/1) ... [2018-12-08 08:56:56,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:56:56" (1/1) ... [2018-12-08 08:56:56,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:56:56" (1/1) ... [2018-12-08 08:56:56,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:56:56" (1/1) ... [2018-12-08 08:56:56,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:56:56,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:56:56,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:56:56,056 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:56:56,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:56:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:56:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 08:56:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:56:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2018-12-08 08:56:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-12-08 08:56:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-12-08 08:56:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2018-12-08 08:56:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2018-12-08 08:56:56,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2018-12-08 08:56:56,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2018-12-08 08:56:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-12-08 08:56:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-12-08 08:56:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-08 08:56:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 08:56:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-12-08 08:56:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-12-08 08:56:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2018-12-08 08:56:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-12-08 08:56:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-12-08 08:56:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-08 08:56:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-08 08:56:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-08 08:56:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-08 08:56:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-08 08:56:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-08 08:56:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-08 08:56:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-08 08:56:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-08 08:56:56,093 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-08 08:56:56,094 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-08 08:56:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2018-12-08 08:56:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2018-12-08 08:56:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2018-12-08 08:56:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-12-08 08:56:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2018-12-08 08:56:56,315 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-12-08 08:56:56,434 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-12-08 08:56:56,557 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:56:56,557 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 08:56:56,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:56:56 BoogieIcfgContainer [2018-12-08 08:56:56,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:56:56,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 08:56:56,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 08:56:56,561 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 08:56:56,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:56:55" (1/3) ... [2018-12-08 08:56:56,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fa81e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:56:56, skipping insertion in model container [2018-12-08 08:56:56,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:56:56" (2/3) ... [2018-12-08 08:56:56,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49fa81e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:56:56, skipping insertion in model container [2018-12-08 08:56:56,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:56:56" (3/3) ... [2018-12-08 08:56:56,563 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-12-08 08:56:56,571 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 08:56:56,577 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 69 error locations. [2018-12-08 08:56:56,586 INFO L257 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2018-12-08 08:56:56,600 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:56:56,601 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 08:56:56,601 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 08:56:56,601 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 08:56:56,601 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:56:56,601 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:56:56,601 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 08:56:56,601 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:56:56,601 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 08:56:56,611 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2018-12-08 08:56:56,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 08:56:56,617 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:56:56,617 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:56:56,619 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:56:56,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:56:56,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1318867473, now seen corresponding path program 1 times [2018-12-08 08:56:56,623 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:56:56,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:56:56,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:56,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:56,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:56,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:56:56,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:56:56,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 08:56:56,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 08:56:56,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 08:56:56,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 08:56:56,754 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 5 states. [2018-12-08 08:56:56,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:56:56,790 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-12-08 08:56:56,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 08:56:56,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-12-08 08:56:56,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:56:56,797 INFO L225 Difference]: With dead ends: 41 [2018-12-08 08:56:56,797 INFO L226 Difference]: Without dead ends: 38 [2018-12-08 08:56:56,799 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 08:56:56,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-08 08:56:56,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2018-12-08 08:56:56,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-08 08:56:56,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-12-08 08:56:56,825 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 17 [2018-12-08 08:56:56,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:56:56,826 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-12-08 08:56:56,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 08:56:56,826 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-12-08 08:56:56,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 08:56:56,827 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:56:56,827 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:56:56,827 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:56:56,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:56:56,827 INFO L82 PathProgramCache]: Analyzing trace with hash 423942862, now seen corresponding path program 1 times [2018-12-08 08:56:56,827 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:56:56,827 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:56:56,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:56,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:56,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:56,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:56:56,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:56:56,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:56:56,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:56:56,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:56:56,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:56:56,862 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2018-12-08 08:56:56,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:56:56,888 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2018-12-08 08:56:56,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:56:56,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-12-08 08:56:56,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:56:56,889 INFO L225 Difference]: With dead ends: 39 [2018-12-08 08:56:56,889 INFO L226 Difference]: Without dead ends: 36 [2018-12-08 08:56:56,889 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:56:56,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-08 08:56:56,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-12-08 08:56:56,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-08 08:56:56,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-12-08 08:56:56,893 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 17 [2018-12-08 08:56:56,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:56:56,893 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-12-08 08:56:56,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:56:56,893 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-12-08 08:56:56,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 08:56:56,893 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:56:56,893 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:56:56,894 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:56:56,894 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:56:56,894 INFO L82 PathProgramCache]: Analyzing trace with hash 2065280679, now seen corresponding path program 1 times [2018-12-08 08:56:56,894 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:56:56,894 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:56:56,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:56,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:56,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:56:56,922 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:56:56,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 08:56:56,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 08:56:56,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 08:56:56,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 08:56:56,923 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 4 states. [2018-12-08 08:56:56,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:56:56,942 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2018-12-08 08:56:56,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 08:56:56,943 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-12-08 08:56:56,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:56:56,943 INFO L225 Difference]: With dead ends: 46 [2018-12-08 08:56:56,943 INFO L226 Difference]: Without dead ends: 46 [2018-12-08 08:56:56,944 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 [2018-12-08 08:56:56,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-08 08:56:56,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 35. [2018-12-08 08:56:56,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-08 08:56:56,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2018-12-08 08:56:56,949 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 18 [2018-12-08 08:56:56,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:56:56,949 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2018-12-08 08:56:56,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 08:56:56,950 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2018-12-08 08:56:56,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 08:56:56,950 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:56:56,950 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:56:56,951 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:56:56,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:56:56,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1396667935, now seen corresponding path program 1 times [2018-12-08 08:56:56,951 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:56:56,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:56:56,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:56,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:56,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:57,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:56:57,035 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:56:57,036 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 08:56:57,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:57,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:56:57,091 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:56:57,092 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:56:57,094 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:56:57,094 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-08 08:56:57,119 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:56:57,119 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:56:57,120 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-12-08 08:56:57,120 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:56:57,126 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 08:56:57,126 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2018-12-08 08:56:57,140 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:56:57,158 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:56:57,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2018-12-08 08:56:57,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 08:56:57,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 08:56:57,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-08 08:56:57,159 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 9 states. [2018-12-08 08:56:57,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:56:57,338 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2018-12-08 08:56:57,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 08:56:57,339 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-08 08:56:57,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:56:57,340 INFO L225 Difference]: With dead ends: 63 [2018-12-08 08:56:57,340 INFO L226 Difference]: Without dead ends: 63 [2018-12-08 08:56:57,340 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 [2018-12-08 08:56:57,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-12-08 08:56:57,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 41. [2018-12-08 08:56:57,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-08 08:56:57,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2018-12-08 08:56:57,346 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 22 [2018-12-08 08:56:57,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:56:57,346 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2018-12-08 08:56:57,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 08:56:57,346 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2018-12-08 08:56:57,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 08:56:57,347 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:56:57,347 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:56:57,347 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:56:57,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:56:57,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1396667936, now seen corresponding path program 1 times [2018-12-08 08:56:57,348 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:56:57,348 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:56:57,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:57,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:57,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:57,493 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:56:57,493 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:56:57,493 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 08:56:57,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:57,525 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:56:57,530 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:56:57,531 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:56:57,536 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:56:57,536 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:56:57,540 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:56:57,540 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-12-08 08:56:57,581 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:56:57,582 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:56:57,583 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:56:57,583 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:56:57,596 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:56:57,597 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:56:57,602 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:56:57,602 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-12-08 08:56:57,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:56:57,617 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:56:57,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-12-08 08:56:57,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 08:56:57,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 08:56:57,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-08 08:56:57,618 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand 11 states. [2018-12-08 08:56:57,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:56:57,857 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2018-12-08 08:56:57,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 08:56:57,858 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-12-08 08:56:57,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:56:57,858 INFO L225 Difference]: With dead ends: 60 [2018-12-08 08:56:57,858 INFO L226 Difference]: Without dead ends: 60 [2018-12-08 08:56:57,858 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 [2018-12-08 08:56:57,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-12-08 08:56:57,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 44. [2018-12-08 08:56:57,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-08 08:56:57,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2018-12-08 08:56:57,862 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 22 [2018-12-08 08:56:57,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:56:57,862 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2018-12-08 08:56:57,862 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 08:56:57,862 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2018-12-08 08:56:57,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 08:56:57,863 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:56:57,863 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] [2018-12-08 08:56:57,863 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:56:57,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:56:57,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1103264928, now seen corresponding path program 1 times [2018-12-08 08:56:57,863 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:56:57,864 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:56:57,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:57,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:57,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 08:56:57,897 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:56:57,897 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 08:56:57,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:57,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:57,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:56:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:56:57,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 08:56:57,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2018-12-08 08:56:57,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 08:56:57,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 08:56:57,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 08:56:57,939 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand 5 states. [2018-12-08 08:56:57,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:56:57,949 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-12-08 08:56:57,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 08:56:57,950 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-12-08 08:56:57,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:56:57,950 INFO L225 Difference]: With dead ends: 32 [2018-12-08 08:56:57,950 INFO L226 Difference]: Without dead ends: 30 [2018-12-08 08:56:57,950 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 [2018-12-08 08:56:57,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-08 08:56:57,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-08 08:56:57,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-08 08:56:57,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2018-12-08 08:56:57,952 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2018-12-08 08:56:57,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:56:57,952 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2018-12-08 08:56:57,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 08:56:57,953 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2018-12-08 08:56:57,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 08:56:57,953 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:56:57,953 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] [2018-12-08 08:56:57,953 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:56:57,953 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:56:57,953 INFO L82 PathProgramCache]: Analyzing trace with hash 2122225147, now seen corresponding path program 1 times [2018-12-08 08:56:57,954 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:56:57,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:56:57,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:57,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:57,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:57,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:57,998 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 08:56:57,998 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:56:57,998 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:56:58,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:58,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:56:58,042 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 08:56:58,056 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:56:58,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-12-08 08:56:58,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 08:56:58,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 08:56:58,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-12-08 08:56:58,057 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 7 states. [2018-12-08 08:56:58,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:56:58,084 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2018-12-08 08:56:58,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 08:56:58,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-12-08 08:56:58,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:56:58,085 INFO L225 Difference]: With dead ends: 37 [2018-12-08 08:56:58,085 INFO L226 Difference]: Without dead ends: 37 [2018-12-08 08:56:58,085 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-12-08 08:56:58,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-08 08:56:58,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 32. [2018-12-08 08:56:58,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-08 08:56:58,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2018-12-08 08:56:58,088 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 27 [2018-12-08 08:56:58,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:56:58,088 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2018-12-08 08:56:58,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 08:56:58,088 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2018-12-08 08:56:58,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 08:56:58,089 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:56:58,089 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] [2018-12-08 08:56:58,089 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:56:58,090 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:56:58,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1065839756, now seen corresponding path program 1 times [2018-12-08 08:56:58,090 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:56:58,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:56:58,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:58,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:58,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 08:56:58,238 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:56:58,238 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:56:58,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:58,266 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:56:58,269 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:56:58,270 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:56:58,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:56:58,275 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:56:58,280 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:56:58,280 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-12-08 08:56:58,313 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:56:58,314 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:56:58,314 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:56:58,321 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:56:58,322 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:56:58,322 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:56:58,323 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:56:58,327 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:56:58,328 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-12-08 08:56:58,351 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:56:58,352 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:56:58,352 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:56:58,362 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:56:58,365 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:56:58,365 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:56:58,366 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:56:58,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:56:58,373 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-12-08 08:56:58,385 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 08:56:58,400 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:56:58,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 14 [2018-12-08 08:56:58,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-08 08:56:58,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-08 08:56:58,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2018-12-08 08:56:58,401 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand 15 states. [2018-12-08 08:56:59,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:56:59,715 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-12-08 08:56:59,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-08 08:56:59,715 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 31 [2018-12-08 08:56:59,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:56:59,716 INFO L225 Difference]: With dead ends: 56 [2018-12-08 08:56:59,716 INFO L226 Difference]: Without dead ends: 56 [2018-12-08 08:56:59,716 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 [2018-12-08 08:56:59,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-12-08 08:56:59,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 35. [2018-12-08 08:56:59,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-08 08:56:59,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2018-12-08 08:56:59,720 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 31 [2018-12-08 08:56:59,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:56:59,720 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2018-12-08 08:56:59,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-08 08:56:59,720 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2018-12-08 08:56:59,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-12-08 08:56:59,721 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:56:59,721 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] [2018-12-08 08:56:59,721 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:56:59,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:56:59,722 INFO L82 PathProgramCache]: Analyzing trace with hash 2026286375, now seen corresponding path program 2 times [2018-12-08 08:56:59,722 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:56:59,722 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:56:59,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:59,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:56:59,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:56:59,756 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-08 08:56:59,756 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:56:59,756 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 08:56:59,762 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-08 08:56:59,779 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 08:56:59,779 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:56:59,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:56:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-08 08:56:59,823 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:56:59,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-12-08 08:56:59,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-08 08:56:59,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-08 08:56:59,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2018-12-08 08:56:59,823 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 9 states. [2018-12-08 08:56:59,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:56:59,854 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2018-12-08 08:56:59,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 08:56:59,854 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-12-08 08:56:59,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:56:59,855 INFO L225 Difference]: With dead ends: 42 [2018-12-08 08:56:59,855 INFO L226 Difference]: Without dead ends: 42 [2018-12-08 08:56:59,855 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 [2018-12-08 08:56:59,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-08 08:56:59,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 37. [2018-12-08 08:56:59,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-08 08:56:59,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-12-08 08:56:59,858 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 36 [2018-12-08 08:56:59,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:56:59,858 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-12-08 08:56:59,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-08 08:56:59,858 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-12-08 08:56:59,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-08 08:56:59,859 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:56:59,859 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] [2018-12-08 08:56:59,859 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:56:59,859 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:56:59,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1656146784, now seen corresponding path program 2 times [2018-12-08 08:56:59,859 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:56:59,859 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:56:59,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:59,860 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:56:59,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:56:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-08 08:57:00,028 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:00,028 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:00,036 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-08 08:57:00,055 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 08:57:00,055 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:00,058 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:00,074 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:00,075 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:00,081 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:00,081 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:00,097 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:00,098 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:19, output treesize:14 [2018-12-08 08:57:00,153 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:00,154 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:00,155 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:00,171 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:00,172 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:00,172 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:57:00,172 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:00,179 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. [2018-12-08 08:57:00,179 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:33, output treesize:17 [2018-12-08 08:57:00,229 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:00,233 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:00,233 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:00,242 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:00,242 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:00,243 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:57:00,243 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:00,248 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. [2018-12-08 08:57:00,249 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:33, output treesize:17 [2018-12-08 08:57:00,307 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:00,308 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:00,309 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:57:00,309 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:00,318 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:00,318 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:00,326 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. [2018-12-08 08:57:00,326 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:33, output treesize:17 [2018-12-08 08:57:00,346 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-08 08:57:00,360 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:00,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 21 [2018-12-08 08:57:00,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-12-08 08:57:00,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-12-08 08:57:00,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2018-12-08 08:57:00,361 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 22 states. [2018-12-08 08:57:02,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:02,462 INFO L93 Difference]: Finished difference Result 74 states and 90 transitions. [2018-12-08 08:57:02,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-08 08:57:02,462 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 40 [2018-12-08 08:57:02,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:02,463 INFO L225 Difference]: With dead ends: 74 [2018-12-08 08:57:02,463 INFO L226 Difference]: Without dead ends: 74 [2018-12-08 08:57:02,463 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 [2018-12-08 08:57:02,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-12-08 08:57:02,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 36. [2018-12-08 08:57:02,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-08 08:57:02,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2018-12-08 08:57:02,467 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 40 [2018-12-08 08:57:02,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:02,468 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2018-12-08 08:57:02,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-12-08 08:57:02,468 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2018-12-08 08:57:02,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-08 08:57:02,468 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:02,469 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] [2018-12-08 08:57:02,470 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:02,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:02,471 INFO L82 PathProgramCache]: Analyzing trace with hash 625469307, now seen corresponding path program 3 times [2018-12-08 08:57:02,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:57:02,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:57:02,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:02,471 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:57:02,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-08 08:57:02,502 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:02,502 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:02,510 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 08:57:02,536 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-12-08 08:57:02,537 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:02,538 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:02,571 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-12-08 08:57:02,586 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:02,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2018-12-08 08:57:02,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-08 08:57:02,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-08 08:57:02,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=61, Unknown=0, NotChecked=0, Total=110 [2018-12-08 08:57:02,587 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand 11 states. [2018-12-08 08:57:02,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:02,622 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2018-12-08 08:57:02,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 08:57:02,622 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 45 [2018-12-08 08:57:02,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:02,623 INFO L225 Difference]: With dead ends: 45 [2018-12-08 08:57:02,623 INFO L226 Difference]: Without dead ends: 45 [2018-12-08 08:57:02,623 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 [2018-12-08 08:57:02,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-12-08 08:57:02,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 41. [2018-12-08 08:57:02,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-08 08:57:02,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-12-08 08:57:02,625 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 45 [2018-12-08 08:57:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:02,626 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-12-08 08:57:02,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-08 08:57:02,626 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-12-08 08:57:02,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-12-08 08:57:02,626 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:02,626 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] [2018-12-08 08:57:02,626 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:02,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:02,627 INFO L82 PathProgramCache]: Analyzing trace with hash -979301465, now seen corresponding path program 4 times [2018-12-08 08:57:02,627 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:57:02,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:57:02,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:02,627 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:57:02,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:02,668 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-08 08:57:02,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:02,668 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:02,678 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 08:57:02,696 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 08:57:02,696 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:02,697 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:02,737 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-08 08:57:02,752 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:02,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-12-08 08:57:02,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-08 08:57:02,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-08 08:57:02,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2018-12-08 08:57:02,753 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 13 states. [2018-12-08 08:57:02,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:02,799 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2018-12-08 08:57:02,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 08:57:02,799 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 54 [2018-12-08 08:57:02,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:02,800 INFO L225 Difference]: With dead ends: 50 [2018-12-08 08:57:02,800 INFO L226 Difference]: Without dead ends: 50 [2018-12-08 08:57:02,800 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 [2018-12-08 08:57:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-08 08:57:02,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2018-12-08 08:57:02,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-08 08:57:02,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2018-12-08 08:57:02,802 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 54 [2018-12-08 08:57:02,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:02,802 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2018-12-08 08:57:02,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-08 08:57:02,802 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2018-12-08 08:57:02,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-08 08:57:02,803 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:02,803 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] [2018-12-08 08:57:02,803 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:02,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:02,803 INFO L82 PathProgramCache]: Analyzing trace with hash -907028229, now seen corresponding path program 5 times [2018-12-08 08:57:02,803 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:57:02,804 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:57:02,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:02,804 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:57:02,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:02,859 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-12-08 08:57:02,859 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:02,859 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:02,867 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-12-08 08:57:02,901 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-12-08 08:57:02,901 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:02,903 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:02,939 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-12-08 08:57:02,955 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:02,955 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2018-12-08 08:57:02,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-08 08:57:02,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-08 08:57:02,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=120, Unknown=0, NotChecked=0, Total=210 [2018-12-08 08:57:02,956 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand 15 states. [2018-12-08 08:57:03,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:03,006 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2018-12-08 08:57:03,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 08:57:03,006 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 63 [2018-12-08 08:57:03,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:03,006 INFO L225 Difference]: With dead ends: 55 [2018-12-08 08:57:03,007 INFO L226 Difference]: Without dead ends: 55 [2018-12-08 08:57:03,007 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 [2018-12-08 08:57:03,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-12-08 08:57:03,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2018-12-08 08:57:03,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-08 08:57:03,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 63 transitions. [2018-12-08 08:57:03,009 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 63 transitions. Word has length 63 [2018-12-08 08:57:03,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:03,009 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 63 transitions. [2018-12-08 08:57:03,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-08 08:57:03,009 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 63 transitions. [2018-12-08 08:57:03,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-12-08 08:57:03,010 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:03,010 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] [2018-12-08 08:57:03,010 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:03,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:03,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1257190873, now seen corresponding path program 6 times [2018-12-08 08:57:03,010 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:57:03,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:57:03,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:03,011 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:57:03,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:03,059 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-12-08 08:57:03,059 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:03,059 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:03,066 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-12-08 08:57:03,166 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-12-08 08:57:03,167 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:03,169 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:03,213 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-12-08 08:57:03,228 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:03,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2018-12-08 08:57:03,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-08 08:57:03,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-08 08:57:03,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=157, Unknown=0, NotChecked=0, Total=272 [2018-12-08 08:57:03,229 INFO L87 Difference]: Start difference. First operand 51 states and 63 transitions. Second operand 17 states. [2018-12-08 08:57:03,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:03,279 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2018-12-08 08:57:03,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 08:57:03,279 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 72 [2018-12-08 08:57:03,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:03,279 INFO L225 Difference]: With dead ends: 60 [2018-12-08 08:57:03,279 INFO L226 Difference]: Without dead ends: 60 [2018-12-08 08:57:03,280 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=115, Invalid=157, Unknown=0, NotChecked=0, Total=272 [2018-12-08 08:57:03,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-12-08 08:57:03,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2018-12-08 08:57:03,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-12-08 08:57:03,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2018-12-08 08:57:03,282 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 72 [2018-12-08 08:57:03,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:03,282 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2018-12-08 08:57:03,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-08 08:57:03,282 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2018-12-08 08:57:03,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-12-08 08:57:03,283 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:03,283 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] [2018-12-08 08:57:03,283 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:03,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:03,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1846438523, now seen corresponding path program 7 times [2018-12-08 08:57:03,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:57:03,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:57:03,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:03,284 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:57:03,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:03,387 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-12-08 08:57:03,387 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:03,387 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:03,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:57:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:03,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-12-08 08:57:03,511 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:03,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2018-12-08 08:57:03,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-12-08 08:57:03,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-12-08 08:57:03,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=199, Unknown=0, NotChecked=0, Total=342 [2018-12-08 08:57:03,512 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand 19 states. [2018-12-08 08:57:03,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:03,571 INFO L93 Difference]: Finished difference Result 65 states and 83 transitions. [2018-12-08 08:57:03,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 08:57:03,571 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 81 [2018-12-08 08:57:03,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:03,572 INFO L225 Difference]: With dead ends: 65 [2018-12-08 08:57:03,572 INFO L226 Difference]: Without dead ends: 65 [2018-12-08 08:57:03,572 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 [2018-12-08 08:57:03,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-12-08 08:57:03,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 61. [2018-12-08 08:57:03,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-12-08 08:57:03,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2018-12-08 08:57:03,574 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 81 [2018-12-08 08:57:03,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:03,574 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2018-12-08 08:57:03,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-12-08 08:57:03,575 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2018-12-08 08:57:03,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-12-08 08:57:03,575 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:03,575 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] [2018-12-08 08:57:03,575 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:03,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:03,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1870796633, now seen corresponding path program 8 times [2018-12-08 08:57:03,576 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:57:03,576 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:57:03,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:03,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:57:03,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-12-08 08:57:03,651 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:03,651 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:03,658 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-08 08:57:03,703 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 08:57:03,703 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:03,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:03,788 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 148 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2018-12-08 08:57:03,812 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:03,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2018-12-08 08:57:03,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-12-08 08:57:03,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-12-08 08:57:03,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=246, Unknown=0, NotChecked=0, Total=420 [2018-12-08 08:57:03,813 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand 21 states. [2018-12-08 08:57:03,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:03,892 INFO L93 Difference]: Finished difference Result 70 states and 90 transitions. [2018-12-08 08:57:03,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 08:57:03,892 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 90 [2018-12-08 08:57:03,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:03,893 INFO L225 Difference]: With dead ends: 70 [2018-12-08 08:57:03,893 INFO L226 Difference]: Without dead ends: 70 [2018-12-08 08:57:03,893 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 [2018-12-08 08:57:03,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-12-08 08:57:03,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2018-12-08 08:57:03,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-08 08:57:03,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2018-12-08 08:57:03,896 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 90 [2018-12-08 08:57:03,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:03,896 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2018-12-08 08:57:03,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-12-08 08:57:03,896 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2018-12-08 08:57:03,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-12-08 08:57:03,896 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:03,896 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] [2018-12-08 08:57:03,897 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:03,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:03,897 INFO L82 PathProgramCache]: Analyzing trace with hash -583296005, now seen corresponding path program 9 times [2018-12-08 08:57:03,897 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:57:03,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:57:03,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:03,898 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:57:03,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:03,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:03,968 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2018-12-08 08:57:03,969 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:03,969 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:03,975 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 08:57:04,349 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-12-08 08:57:04,349 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:04,352 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:04,432 INFO L134 CoverageAnalysis]: Checked inductivity of 369 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2018-12-08 08:57:04,447 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:04,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2018-12-08 08:57:04,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-12-08 08:57:04,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-12-08 08:57:04,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=298, Unknown=0, NotChecked=0, Total=506 [2018-12-08 08:57:04,448 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand 23 states. [2018-12-08 08:57:04,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:04,533 INFO L93 Difference]: Finished difference Result 75 states and 97 transitions. [2018-12-08 08:57:04,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-08 08:57:04,533 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 99 [2018-12-08 08:57:04,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:04,534 INFO L225 Difference]: With dead ends: 75 [2018-12-08 08:57:04,534 INFO L226 Difference]: Without dead ends: 75 [2018-12-08 08:57:04,534 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 [2018-12-08 08:57:04,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-12-08 08:57:04,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 71. [2018-12-08 08:57:04,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-08 08:57:04,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions. [2018-12-08 08:57:04,536 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 99 [2018-12-08 08:57:04,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:04,537 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions. [2018-12-08 08:57:04,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-12-08 08:57:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions. [2018-12-08 08:57:04,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-12-08 08:57:04,537 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:04,537 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] [2018-12-08 08:57:04,538 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_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_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_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:04,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:04,538 INFO L82 PathProgramCache]: Analyzing trace with hash 391145255, now seen corresponding path program 10 times [2018-12-08 08:57:04,538 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 08:57:04,538 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 08:57:04,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:04,538 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:57:04,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 08:57:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:57:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 08:57:04,631 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 08:57:04,646 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 08:57:04,651 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 41 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-08 08:57:04,651 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# [2018-12-08 08:57:04,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 08:57:04 BoogieIcfgContainer [2018-12-08 08:57:04,668 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 08:57:04,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 08:57:04,668 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 08:57:04,668 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 08:57:04,669 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:56:56" (3/4) ... [2018-12-08 08:57:04,672 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 08:57:04,672 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 08:57:04,673 INFO L168 Benchmark]: Toolchain (without parser) took 9000.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 189.8 MB). Free memory was 951.7 MB in the beginning and 853.6 MB in the end (delta: 98.1 MB). Peak memory consumption was 287.9 MB. Max. memory is 11.5 GB. [2018-12-08 08:57:04,674 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:57:04,674 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -130.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. [2018-12-08 08:57:04,674 INFO L168 Benchmark]: Boogie Preprocessor took 42.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 08:57:04,675 INFO L168 Benchmark]: RCFGBuilder took 501.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 970.1 MB in the end (delta: 106.6 MB). Peak memory consumption was 106.6 MB. Max. memory is 11.5 GB. [2018-12-08 08:57:04,675 INFO L168 Benchmark]: TraceAbstraction took 8109.47 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 86.0 MB). Free memory was 970.1 MB in the beginning and 853.6 MB in the end (delta: 116.5 MB). Peak memory consumption was 202.5 MB. Max. memory is 11.5 GB. [2018-12-08 08:57:04,675 INFO L168 Benchmark]: Witness Printer took 4.08 ms. Allocated memory is still 1.2 GB. Free memory is still 853.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 08:57:04,677 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 339.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -130.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 501.38 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 970.1 MB in the end (delta: 106.6 MB). Peak memory consumption was 106.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8109.47 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 86.0 MB). Free memory was 970.1 MB in the beginning and 853.6 MB in the end (delta: 116.5 MB). Peak memory consumption was 202.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.08 ms. Allocated memory is still 1.2 GB. Free memory is still 853.6 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: 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_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:05,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 08:57:05,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 08:57:05,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 08:57:05,988 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 08:57:05,988 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 08:57:05,989 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-12-08 08:57:06,035 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/data/75933775a/4f297d670af24da59e3e1857b1536bb5/FLAG7936a8572 [2018-12-08 08:57:06,474 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 08:57:06,475 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/sv-benchmarks/c/ldv-memsafety/memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-12-08 08:57:06,484 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/data/75933775a/4f297d670af24da59e3e1857b1536bb5/FLAG7936a8572 [2018-12-08 08:57:06,493 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/data/75933775a/4f297d670af24da59e3e1857b1536bb5 [2018-12-08 08:57:06,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 08:57:06,496 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-12-08 08:57:06,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 08:57:06,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 08:57:06,498 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 08:57:06,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:57:06" (1/1) ... [2018-12-08 08:57:06,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73418f4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:06, skipping insertion in model container [2018-12-08 08:57:06,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 08:57:06" (1/1) ... [2018-12-08 08:57:06,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 08:57:06,526 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 08:57:06,733 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:57:06,780 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 08:57:06,821 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 08:57:06,853 INFO L195 MainTranslator]: Completed translation [2018-12-08 08:57:06,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:06 WrapperNode [2018-12-08 08:57:06,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 08:57:06,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 08:57:06,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 08:57:06,854 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 08:57:06,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:06" (1/1) ... [2018-12-08 08:57:06,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:06" (1/1) ... [2018-12-08 08:57:06,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:06" (1/1) ... [2018-12-08 08:57:06,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:06" (1/1) ... [2018-12-08 08:57:06,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:06" (1/1) ... [2018-12-08 08:57:06,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:06" (1/1) ... [2018-12-08 08:57:06,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:06" (1/1) ... [2018-12-08 08:57:06,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 08:57:06,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 08:57:06,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 08:57:06,899 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 08:57:06,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 08:57:06,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 08:57:06,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 08:57:06,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2018-12-08 08:57:06,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2018-12-08 08:57:06,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2018-12-08 08:57:06,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2018-12-08 08:57:06,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2018-12-08 08:57:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2018-12-08 08:57:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2018-12-08 08:57:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2018-12-08 08:57:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2018-12-08 08:57:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2018-12-08 08:57:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2018-12-08 08:57:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2018-12-08 08:57:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2018-12-08 08:57:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2018-12-08 08:57:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2018-12-08 08:57:06,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2018-12-08 08:57:06,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2018-12-08 08:57:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2018-12-08 08:57:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2018-12-08 08:57:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2018-12-08 08:57:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2018-12-08 08:57:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2018-12-08 08:57:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-12-08 08:57:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2018-12-08 08:57:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2018-12-08 08:57:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 08:57:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-12-08 08:57:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2018-12-08 08:57:06,933 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2018-12-08 08:57:06,933 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2018-12-08 08:57:06,934 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure select [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2018-12-08 08:57:06,935 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2018-12-08 08:57:06,936 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure free [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure cfree [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2018-12-08 08:57:06,937 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure system [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure div [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2018-12-08 08:57:06,938 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2018-12-08 08:57:06,939 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2018-12-08 08:57:06,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2018-12-08 08:57:06,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure g [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-12-08 08:57:06,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2018-12-08 08:57:07,213 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-12-08 08:57:07,444 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-12-08 08:57:07,654 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 08:57:07,654 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 08:57:07,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:57:07 BoogieIcfgContainer [2018-12-08 08:57:07,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 08:57:07,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 08:57:07,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 08:57:07,658 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 08:57:07,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 08:57:06" (1/3) ... [2018-12-08 08:57:07,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a094edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:57:07, skipping insertion in model container [2018-12-08 08:57:07,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 08:57:06" (2/3) ... [2018-12-08 08:57:07,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a094edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 08:57:07, skipping insertion in model container [2018-12-08 08:57:07,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:57:07" (3/3) ... [2018-12-08 08:57:07,661 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test18_3_false-valid-memtrack_true-termination.i [2018-12-08 08:57:07,669 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 08:57:07,676 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 69 error locations. [2018-12-08 08:57:07,688 INFO L257 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2018-12-08 08:57:07,705 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 08:57:07,705 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 08:57:07,705 INFO L383 AbstractCegarLoop]: Hoare is false [2018-12-08 08:57:07,705 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 08:57:07,706 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 08:57:07,706 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 08:57:07,706 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 08:57:07,706 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 08:57:07,706 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 08:57:07,716 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2018-12-08 08:57:07,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 08:57:07,722 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:07,722 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:57:07,724 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:07,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:07,728 INFO L82 PathProgramCache]: Analyzing trace with hash -38416848, now seen corresponding path program 1 times [2018-12-08 08:57:07,730 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:07,730 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 08:57:07,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:57:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:07,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:07,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:57:07,822 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 08:57:07,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:57:07,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 08:57:07,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 08:57:07,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 08:57:07,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 08:57:07,838 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 5 states. [2018-12-08 08:57:07,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:07,908 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-12-08 08:57:07,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 08:57:07,910 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-12-08 08:57:07,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:07,915 INFO L225 Difference]: With dead ends: 41 [2018-12-08 08:57:07,916 INFO L226 Difference]: Without dead ends: 38 [2018-12-08 08:57:07,916 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 08:57:07,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-08 08:57:07,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2018-12-08 08:57:07,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-12-08 08:57:07,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-12-08 08:57:07,940 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 17 [2018-12-08 08:57:07,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:07,940 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-12-08 08:57:07,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 08:57:07,940 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-12-08 08:57:07,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-08 08:57:07,941 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:07,941 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:57:07,942 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:07,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:07,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1704393487, now seen corresponding path program 1 times [2018-12-08 08:57:07,942 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:07,942 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 08:57:07,957 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:57:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:07,977 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:07,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:57:07,983 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 08:57:07,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:57:07,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 08:57:07,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 08:57:07,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 08:57:07,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:57:07,986 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 3 states. [2018-12-08 08:57:08,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:08,025 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2018-12-08 08:57:08,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 08:57:08,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-12-08 08:57:08,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:08,027 INFO L225 Difference]: With dead ends: 39 [2018-12-08 08:57:08,027 INFO L226 Difference]: Without dead ends: 36 [2018-12-08 08:57:08,028 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 08:57:08,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-08 08:57:08,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-12-08 08:57:08,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-08 08:57:08,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-12-08 08:57:08,032 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 17 [2018-12-08 08:57:08,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:08,032 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-12-08 08:57:08,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 08:57:08,032 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-12-08 08:57:08,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 08:57:08,033 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:08,033 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:57:08,033 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:08,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:08,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1190422937, now seen corresponding path program 1 times [2018-12-08 08:57:08,034 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:08,034 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 08:57:08,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:57:08,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:08,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:57:08,111 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 08:57:08,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:57:08,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 08:57:08,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 08:57:08,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 08:57:08,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 08:57:08,113 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 4 states. [2018-12-08 08:57:08,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:08,151 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2018-12-08 08:57:08,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 08:57:08,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-12-08 08:57:08,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:08,153 INFO L225 Difference]: With dead ends: 46 [2018-12-08 08:57:08,153 INFO L226 Difference]: Without dead ends: 46 [2018-12-08 08:57:08,153 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 08:57:08,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-08 08:57:08,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 35. [2018-12-08 08:57:08,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-08 08:57:08,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2018-12-08 08:57:08,157 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 18 [2018-12-08 08:57:08,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:08,157 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2018-12-08 08:57:08,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 08:57:08,157 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2018-12-08 08:57:08,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 08:57:08,158 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:08,158 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:57:08,158 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:08,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:08,158 INFO L82 PathProgramCache]: Analyzing trace with hash -198421859, now seen corresponding path program 1 times [2018-12-08 08:57:08,159 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:08,159 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 08:57:08,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:57:08,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:08,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:08,255 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:08,256 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:08,259 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:08,259 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-12-08 08:57:08,673 WARN L854 $PredicateComparison]: unable to prove that (exists ((|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (= (store |c_old(#valid)| |ldv_malloc_#t~malloc12.base| (_ bv1 1)) |c_#valid|)) is different from true [2018-12-08 08:57:08,681 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 [2018-12-08 08:57:08,681 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:08,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-08 08:57:08,686 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:11 [2018-12-08 08:57:08,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-12-08 08:57:08,696 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:08,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:57:08,790 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:08,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2018-12-08 08:57:08,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 08:57:08,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 08:57:08,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=5, NotChecked=10, Total=56 [2018-12-08 08:57:08,791 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 8 states. [2018-12-08 08:57:09,738 WARN L180 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 13 [2018-12-08 08:57:09,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:09,951 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2018-12-08 08:57:09,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 08:57:09,953 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-12-08 08:57:09,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:09,953 INFO L225 Difference]: With dead ends: 53 [2018-12-08 08:57:09,953 INFO L226 Difference]: Without dead ends: 53 [2018-12-08 08:57:09,954 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 [2018-12-08 08:57:09,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-08 08:57:09,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 41. [2018-12-08 08:57:09,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-08 08:57:09,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 52 transitions. [2018-12-08 08:57:09,959 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 52 transitions. Word has length 22 [2018-12-08 08:57:09,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:09,959 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 52 transitions. [2018-12-08 08:57:09,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 08:57:09,959 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 52 transitions. [2018-12-08 08:57:09,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 08:57:09,960 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:09,960 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 08:57:09,960 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:09,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:09,961 INFO L82 PathProgramCache]: Analyzing trace with hash -198421858, now seen corresponding path program 1 times [2018-12-08 08:57:09,961 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:09,961 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 08:57:09,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:57:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:10,025 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:10,038 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:10,039 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:10,048 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:10,048 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:10,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:10,056 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:57:10,847 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-08 08:57:10,856 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:10,857 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:10,858 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:57:10,858 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:10,878 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:10,878 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:10,889 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:10,889 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:57:10,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-12-08 08:57:10,907 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:11,167 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:11,167 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 08:57:11,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:57:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:11,200 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:11,205 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:11,205 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:11,218 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:11,218 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:11,224 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:11,224 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:57:11,235 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:11,236 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:11,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:11,237 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:11,250 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:11,250 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:11,260 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:11,260 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:11,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-12-08 08:57:11,262 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:11,415 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:11,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-12-08 08:57:11,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 08:57:11,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 08:57:11,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=88, Unknown=1, NotChecked=18, Total=132 [2018-12-08 08:57:11,416 INFO L87 Difference]: Start difference. First operand 41 states and 52 transitions. Second operand 10 states. [2018-12-08 08:57:11,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:11,800 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2018-12-08 08:57:11,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 08:57:11,800 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-12-08 08:57:11,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:11,801 INFO L225 Difference]: With dead ends: 49 [2018-12-08 08:57:11,801 INFO L226 Difference]: Without dead ends: 49 [2018-12-08 08:57:11,801 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 [2018-12-08 08:57:11,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-12-08 08:57:11,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 44. [2018-12-08 08:57:11,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-08 08:57:11,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2018-12-08 08:57:11,804 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 22 [2018-12-08 08:57:11,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:11,804 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2018-12-08 08:57:11,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 08:57:11,804 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2018-12-08 08:57:11,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 08:57:11,805 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:11,805 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] [2018-12-08 08:57:11,805 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:11,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:11,805 INFO L82 PathProgramCache]: Analyzing trace with hash -491824866, now seen corresponding path program 1 times [2018-12-08 08:57:11,805 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:11,805 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 08:57:11,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:57:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:11,858 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:11,872 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 08:57:11,872 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 08:57:11,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 08:57:11,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 08:57:11,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 08:57:11,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 08:57:11,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 08:57:11,875 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand 5 states. [2018-12-08 08:57:11,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:11,893 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-12-08 08:57:11,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-08 08:57:11,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-12-08 08:57:11,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:11,894 INFO L225 Difference]: With dead ends: 32 [2018-12-08 08:57:11,895 INFO L226 Difference]: Without dead ends: 30 [2018-12-08 08:57:11,895 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 [2018-12-08 08:57:11,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-08 08:57:11,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-12-08 08:57:11,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-12-08 08:57:11,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2018-12-08 08:57:11,898 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 22 [2018-12-08 08:57:11,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:11,898 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2018-12-08 08:57:11,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 08:57:11,898 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2018-12-08 08:57:11,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-08 08:57:11,899 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:11,899 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] [2018-12-08 08:57:11,899 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:11,899 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:11,899 INFO L82 PathProgramCache]: Analyzing trace with hash -768653187, now seen corresponding path program 1 times [2018-12-08 08:57:11,900 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:11,900 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 08:57:11,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:57:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:11,957 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:11,973 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 08:57:11,973 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-08 08:57:12,012 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:12,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-12-08 08:57:12,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 08:57:12,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 08:57:12,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-08 08:57:12,013 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 8 states. [2018-12-08 08:57:12,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:12,125 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2018-12-08 08:57:12,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 08:57:12,126 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2018-12-08 08:57:12,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:12,126 INFO L225 Difference]: With dead ends: 44 [2018-12-08 08:57:12,127 INFO L226 Difference]: Without dead ends: 44 [2018-12-08 08:57:12,127 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 [2018-12-08 08:57:12,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-08 08:57:12,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2018-12-08 08:57:12,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-08 08:57:12,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2018-12-08 08:57:12,130 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 27 [2018-12-08 08:57:12,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:12,131 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2018-12-08 08:57:12,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 08:57:12,131 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2018-12-08 08:57:12,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-08 08:57:12,131 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:12,132 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] [2018-12-08 08:57:12,132 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:12,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:12,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1856173644, now seen corresponding path program 1 times [2018-12-08 08:57:12,132 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:12,132 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/bin-2019/uautomizer/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2018-12-08 08:57:12,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:57:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:12,224 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:12,235 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:12,236 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:12,244 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:12,244 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:12,249 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:12,249 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:57:13,164 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-08 08:57:13,170 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:13,172 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:13,172 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:13,172 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,188 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 12 treesize of output 15 [2018-12-08 08:57:13,188 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,198 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,199 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:57:13,236 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:13,239 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:13,239 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,254 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:13,255 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:13,256 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:13,256 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,267 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,267 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:13,283 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 4 not checked. [2018-12-08 08:57:13,284 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:13,572 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:13,572 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:13,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:57:13,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:57:13,605 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:13,609 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:13,609 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,618 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:13,618 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,624 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,624 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:57:13,632 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:13,635 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:13,635 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,654 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:13,655 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:13,655 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:13,656 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,667 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,668 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:13,699 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:13,702 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:57:13,702 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,718 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:13,719 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:13,720 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:13,720 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,731 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:13,731 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:57:13,733 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 4 not checked. [2018-12-08 08:57:13,734 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:13,917 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:13,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2018-12-08 08:57:13,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 08:57:13,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 08:57:13,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=126, Unknown=1, NotChecked=22, Total=182 [2018-12-08 08:57:13,918 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand 12 states. [2018-12-08 08:57:14,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:14,531 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2018-12-08 08:57:14,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-08 08:57:14,532 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2018-12-08 08:57:14,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:14,532 INFO L225 Difference]: With dead ends: 46 [2018-12-08 08:57:14,532 INFO L226 Difference]: Without dead ends: 46 [2018-12-08 08:57:14,533 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=75, Invalid=348, Unknown=1, NotChecked=38, Total=462 [2018-12-08 08:57:14,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-08 08:57:14,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2018-12-08 08:57:14,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-08 08:57:14,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2018-12-08 08:57:14,535 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 31 [2018-12-08 08:57:14,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:14,535 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2018-12-08 08:57:14,536 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 08:57:14,536 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2018-12-08 08:57:14,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-08 08:57:14,536 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:14,536 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] [2018-12-08 08:57:14,537 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:14,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:14,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1213852510, now seen corresponding path program 2 times [2018-12-08 08:57:14,537 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:14,537 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:14,550 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-08 08:57:14,671 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 08:57:14,671 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:14,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:14,684 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:14,684 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:14,692 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:14,693 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:14,698 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:14,698 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:57:15,617 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-08 08:57:15,625 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:15,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:57:15,630 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:15,646 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:15,646 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:15,647 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:15,647 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:15,660 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:15,660 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:57:15,700 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:15,702 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:15,702 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 [2018-12-08 08:57:15,702 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:15,718 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:15,719 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:15,729 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:15,729 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:15,790 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:15,792 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:15,792 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:15,793 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:15,809 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:15,809 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:15,820 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:15,820 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:15,842 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 6 not checked. [2018-12-08 08:57:15,842 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:16,171 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:16,171 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:16,177 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-08 08:57:16,215 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 08:57:16,215 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:16,218 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:16,222 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:16,222 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:16,230 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:16,231 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:16,236 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:16,236 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:57:17,776 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 [2018-12-08 08:57:17,784 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:17,785 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:17,786 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 [2018-12-08 08:57:17,786 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:17,810 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:17,810 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:17,824 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. [2018-12-08 08:57:17,825 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:38, output treesize:29 [2018-12-08 08:57:17,898 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:17,901 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 [2018-12-08 08:57:17,901 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:17,926 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:17,927 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:17,928 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:57:17,929 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 [2018-12-08 08:57:17,929 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:17,947 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:17,947 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:40, output treesize:14 [2018-12-08 08:57:17,980 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:17,982 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 [2018-12-08 08:57:17,983 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:18,007 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:18,008 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:18,008 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:18,009 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:18,019 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:18,019 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:18,025 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 10 not checked. [2018-12-08 08:57:18,025 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:18,217 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:18,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 16 [2018-12-08 08:57:18,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-08 08:57:18,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-08 08:57:18,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=223, Unknown=2, NotChecked=62, Total=342 [2018-12-08 08:57:18,218 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 17 states. [2018-12-08 08:57:20,397 WARN L180 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-12-08 08:57:20,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:20,945 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2018-12-08 08:57:20,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 08:57:20,946 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 40 [2018-12-08 08:57:20,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:20,946 INFO L225 Difference]: With dead ends: 50 [2018-12-08 08:57:20,947 INFO L226 Difference]: Without dead ends: 50 [2018-12-08 08:57:20,947 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 64 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=110, Invalid=546, Unknown=2, NotChecked=98, Total=756 [2018-12-08 08:57:20,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-08 08:57:20,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2018-12-08 08:57:20,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-08 08:57:20,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2018-12-08 08:57:20,950 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 40 [2018-12-08 08:57:20,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:20,950 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2018-12-08 08:57:20,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-08 08:57:20,950 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2018-12-08 08:57:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-12-08 08:57:20,951 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:20,951 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] [2018-12-08 08:57:20,951 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:20,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:20,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1913604340, now seen corresponding path program 3 times [2018-12-08 08:57:20,951 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:20,951 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:20,969 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-12-08 08:57:21,158 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-12-08 08:57:21,158 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:21,163 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:21,172 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:21,172 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:21,179 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:21,179 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:21,184 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:21,184 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:57:22,101 WARN L180 SmtUtils]: Spent 862.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-12-08 08:57:22,106 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:22,108 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:22,108 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:22,123 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:22,124 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:22,125 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:57:22,125 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:22,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:22,134 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:18 [2018-12-08 08:57:22,195 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:22,196 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:22,196 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:22,197 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:22,210 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:22,210 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:22,219 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:22,219 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:18 [2018-12-08 08:57:23,016 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-08 08:57:23,022 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:23,023 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:23,024 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:23,024 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:23,037 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:23,037 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:23,046 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:23,047 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:23,156 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:23,163 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:23,163 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:23,178 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:23,179 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:23,179 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:23,179 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:23,189 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:23,189 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:23,215 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 4 proven. 35 refuted. 0 times theorem prover too weak. 16 trivial. 12 not checked. [2018-12-08 08:57:23,215 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:23,586 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:23,586 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:23,593 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 08:57:23,935 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2018-12-08 08:57:23,935 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:23,939 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:23,942 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:23,942 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:23,951 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:23,951 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:23,957 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:23,958 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:57:23,964 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:23,965 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:23,966 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:23,984 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:23,985 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:23,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:57:23,985 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:23,994 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:23,994 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:57:24,001 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:24,003 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:24,004 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:24,018 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:24,019 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:24,019 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:57:24,020 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:24,029 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:24,029 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:57:24,036 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:24,037 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:24,038 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:24,052 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:24,053 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:24,053 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:24,053 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:24,063 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:24,063 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:24,099 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:24,100 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:24,101 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 [2018-12-08 08:57:24,101 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:24,117 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:24,117 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:24,127 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:24,127 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:24,131 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 24 trivial. 8 not checked. [2018-12-08 08:57:24,131 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:24,324 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:24,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15] total 18 [2018-12-08 08:57:24,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-12-08 08:57:24,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-12-08 08:57:24,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=324, Unknown=1, NotChecked=36, Total=420 [2018-12-08 08:57:24,325 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 19 states. [2018-12-08 08:57:26,601 WARN L180 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 31 DAG size of output: 24 [2018-12-08 08:57:39,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:39,559 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2018-12-08 08:57:39,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-08 08:57:39,560 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 49 [2018-12-08 08:57:39,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:39,560 INFO L225 Difference]: With dead ends: 54 [2018-12-08 08:57:39,560 INFO L226 Difference]: Without dead ends: 54 [2018-12-08 08:57:39,561 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 80 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=142, Invalid=983, Unknown=1, NotChecked=64, Total=1190 [2018-12-08 08:57:39,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-08 08:57:39,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2018-12-08 08:57:39,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-12-08 08:57:39,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-12-08 08:57:39,563 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 49 [2018-12-08 08:57:39,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:39,563 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-12-08 08:57:39,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-12-08 08:57:39,563 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2018-12-08 08:57:39,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-12-08 08:57:39,564 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:39,564 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] [2018-12-08 08:57:39,564 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:39,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:39,564 INFO L82 PathProgramCache]: Analyzing trace with hash 209115111, now seen corresponding path program 2 times [2018-12-08 08:57:39,565 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:39,565 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:39,587 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-08 08:57:39,689 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 08:57:39,689 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:39,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:39,773 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-12-08 08:57:39,774 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-12-08 08:57:40,082 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:40,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2018-12-08 08:57:40,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-12-08 08:57:40,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-12-08 08:57:40,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=245, Unknown=0, NotChecked=0, Total=342 [2018-12-08 08:57:40,083 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 19 states. [2018-12-08 08:57:41,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:41,056 INFO L93 Difference]: Finished difference Result 77 states and 97 transitions. [2018-12-08 08:57:41,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-08 08:57:41,057 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 54 [2018-12-08 08:57:41,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:41,057 INFO L225 Difference]: With dead ends: 77 [2018-12-08 08:57:41,057 INFO L226 Difference]: Without dead ends: 77 [2018-12-08 08:57:41,058 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=238, Invalid=464, Unknown=0, NotChecked=0, Total=702 [2018-12-08 08:57:41,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2018-12-08 08:57:41,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 72. [2018-12-08 08:57:41,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-08 08:57:41,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 97 transitions. [2018-12-08 08:57:41,063 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 97 transitions. Word has length 54 [2018-12-08 08:57:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:41,063 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 97 transitions. [2018-12-08 08:57:41,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-12-08 08:57:41,064 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 97 transitions. [2018-12-08 08:57:41,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-12-08 08:57:41,065 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:41,065 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] [2018-12-08 08:57:41,065 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:41,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:41,065 INFO L82 PathProgramCache]: Analyzing trace with hash 890950686, now seen corresponding path program 4 times [2018-12-08 08:57:41,066 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:41,066 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:41,081 INFO L101 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 08:57:41,240 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 08:57:41,241 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:41,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:41,258 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:41,259 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:41,267 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:41,267 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:41,272 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:41,273 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:57:42,838 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)))) is different from true [2018-12-08 08:57:42,844 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:42,845 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:42,846 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:42,846 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:42,862 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:42,862 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:42,873 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:42,873 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:42,907 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:42,909 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:42,909 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:42,925 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:42,926 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:42,926 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:57:42,926 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:42,936 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:42,936 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:57:42,974 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:42,977 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:57:42,977 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:42,990 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:42,991 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:42,992 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:57:42,992 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,002 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,002 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-12-08 08:57:43,045 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,046 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,047 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:43,047 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,064 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:57:43,064 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,074 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,074 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:57:43,120 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,123 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:43,123 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,144 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:57:43,144 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,154 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,154 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:57:43,179 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 5 proven. 51 refuted. 0 times theorem prover too weak. 40 trivial. 10 not checked. [2018-12-08 08:57:43,179 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:43,534 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:43,534 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:43,540 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-08 08:57:43,593 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-08 08:57:43,593 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:43,597 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:43,600 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:43,600 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,609 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:43,609 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,614 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:57:43,622 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,623 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,623 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:43,623 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,638 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:43,638 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,648 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,648 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:43,657 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,658 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,659 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:57:43,659 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,676 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:43,676 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,687 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:57:43,693 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,695 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:43,695 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,711 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,712 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,712 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:43,713 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,727 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,727 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:43,735 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,737 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:43,737 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,758 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,759 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,759 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:43,759 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,775 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,775 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:43,842 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,844 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 [2018-12-08 08:57:43,844 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,860 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,860 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:43,861 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:43,861 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,871 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:43,871 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:57:43,877 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 5 proven. 51 refuted. 0 times theorem prover too weak. 40 trivial. 10 not checked. [2018-12-08 08:57:43,877 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:44,102 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:44,102 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2018-12-08 08:57:44,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-08 08:57:44,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-08 08:57:44,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=288, Unknown=1, NotChecked=34, Total=380 [2018-12-08 08:57:44,102 INFO L87 Difference]: Start difference. First operand 72 states and 97 transitions. Second operand 18 states. [2018-12-08 08:57:45,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:57:45,304 INFO L93 Difference]: Finished difference Result 82 states and 106 transitions. [2018-12-08 08:57:45,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-08 08:57:45,304 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 58 [2018-12-08 08:57:45,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:57:45,305 INFO L225 Difference]: With dead ends: 82 [2018-12-08 08:57:45,306 INFO L226 Difference]: Without dead ends: 82 [2018-12-08 08:57:45,306 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 100 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=138, Invalid=921, Unknown=1, NotChecked=62, Total=1122 [2018-12-08 08:57:45,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-12-08 08:57:45,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 72. [2018-12-08 08:57:45,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-08 08:57:45,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 96 transitions. [2018-12-08 08:57:45,311 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 96 transitions. Word has length 58 [2018-12-08 08:57:45,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:57:45,312 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 96 transitions. [2018-12-08 08:57:45,312 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-08 08:57:45,312 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 96 transitions. [2018-12-08 08:57:45,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-08 08:57:45,313 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:57:45,313 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] [2018-12-08 08:57:45,313 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:57:45,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:57:45,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1561839564, now seen corresponding path program 5 times [2018-12-08 08:57:45,314 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:57:45,314 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:45,328 INFO L101 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2018-12-08 08:57:45,621 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-12-08 08:57:45,621 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:45,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:45,650 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:45,650 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:45,654 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:45,654 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-12-08 08:57:46,640 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 [2018-12-08 08:57:46,646 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:46,653 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 [2018-12-08 08:57:46,653 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-12-08 08:57:46,668 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. [2018-12-08 08:57:46,669 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:32 [2018-12-08 08:57:48,075 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-08 08:57:48,084 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:48,087 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:48,089 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:48,104 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 [2018-12-08 08:57:48,105 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-12-08 08:57:48,220 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:48,221 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:48,222 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 [2018-12-08 08:57:48,222 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:48,225 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:48,226 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:48,227 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 [2018-12-08 08:57:48,227 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:48,307 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:48,309 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:48,309 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 [2018-12-08 08:57:48,309 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:48,383 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 [2018-12-08 08:57:48,384 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:48,437 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. [2018-12-08 08:57:48,437 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 9 variables, input treesize:74, output treesize:54 [2018-12-08 08:57:49,527 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 [2018-12-08 08:57:49,534 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:49,536 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:49,536 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 [2018-12-08 08:57:49,537 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:49,558 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:57:49,559 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:49,572 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. [2018-12-08 08:57:49,572 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:36, output treesize:27 [2018-12-08 08:57:49,647 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:49,649 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:49,649 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:57:49,650 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 [2018-12-08 08:57:49,650 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:49,687 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-12-08 08:57:49,687 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:49,713 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. [2018-12-08 08:57:49,713 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:44, output treesize:41 [2018-12-08 08:57:49,822 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:49,823 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:57:49,823 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:57:49,824 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 [2018-12-08 08:57:49,824 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:49,856 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 [2018-12-08 08:57:49,857 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:49,884 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:49,884 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:54, output treesize:14 [2018-12-08 08:57:49,974 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:49,975 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:49,975 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:49,975 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:49,988 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:49,989 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:49,998 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:49,998 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:57:50,036 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 12 proven. 80 refuted. 0 times theorem prover too weak. 28 trivial. 34 not checked. [2018-12-08 08:57:50,036 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:50,419 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:57:50,419 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:57:50,425 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-12-08 08:57:52,911 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2018-12-08 08:57:52,911 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:57:52,918 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:57:52,920 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:52,921 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:52,930 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:57:52,930 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:52,936 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:52,936 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:57:53,082 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,083 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,084 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 11 treesize of output 4 [2018-12-08 08:57:53,084 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,098 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 [2018-12-08 08:57:53,098 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,108 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,108 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:57:53,129 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,131 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:53,131 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,147 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,148 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,148 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:57:53,148 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,158 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,158 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:34, output treesize:16 [2018-12-08 08:57:53,197 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,200 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:57:53,200 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,217 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,218 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,218 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 [2018-12-08 08:57:53,219 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,234 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. [2018-12-08 08:57:53,234 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:38, output treesize:29 [2018-12-08 08:57:53,268 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,269 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,269 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:57:53,270 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 [2018-12-08 08:57:53,270 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,296 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 [2018-12-08 08:57:53,296 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,318 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. [2018-12-08 08:57:53,318 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:46, output treesize:42 [2018-12-08 08:57:53,402 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,405 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,405 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:57:53,406 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:57:53,406 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 [2018-12-08 08:57:53,406 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,460 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 [2018-12-08 08:57:53,460 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,497 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. [2018-12-08 08:57:53,497 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:60, output treesize:62 [2018-12-08 08:57:53,737 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,738 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:57:53,738 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:57:53,738 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:57:53,739 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 [2018-12-08 08:57:53,739 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,790 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 [2018-12-08 08:57:53,790 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,832 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:57:53,833 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:75, output treesize:14 [2018-12-08 08:57:53,844 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 76 refuted. 0 times theorem prover too weak. 42 trivial. 30 not checked. [2018-12-08 08:57:53,844 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:57:54,112 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:57:54,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 20] total 32 [2018-12-08 08:57:54,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-08 08:57:54,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-08 08:57:54,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=883, Unknown=3, NotChecked=186, Total=1190 [2018-12-08 08:57:54,113 INFO L87 Difference]: Start difference. First operand 72 states and 96 transitions. Second operand 33 states. [2018-12-08 08:58:01,171 WARN L180 SmtUtils]: Spent 6.83 s on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2018-12-08 08:58:05,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:58:05,923 INFO L93 Difference]: Finished difference Result 111 states and 147 transitions. [2018-12-08 08:58:05,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-12-08 08:58:05,924 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 67 [2018-12-08 08:58:05,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:58:05,924 INFO L225 Difference]: With dead ends: 111 [2018-12-08 08:58:05,924 INFO L226 Difference]: Without dead ends: 111 [2018-12-08 08:58:05,925 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 99 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=245, Invalid=2116, Unknown=3, NotChecked=288, Total=2652 [2018-12-08 08:58:05,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2018-12-08 08:58:05,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 89. [2018-12-08 08:58:05,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-12-08 08:58:05,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 119 transitions. [2018-12-08 08:58:05,928 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 119 transitions. Word has length 67 [2018-12-08 08:58:05,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:58:05,928 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 119 transitions. [2018-12-08 08:58:05,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-08 08:58:05,929 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 119 transitions. [2018-12-08 08:58:05,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-08 08:58:05,929 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:58:05,929 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] [2018-12-08 08:58:05,929 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:58:05,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:58:05,930 INFO L82 PathProgramCache]: Analyzing trace with hash 723023891, now seen corresponding path program 1 times [2018-12-08 08:58:05,930 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:58:05,930 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:58:05,944 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:58:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:58:06,155 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:58:06,164 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:58:06,164 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:06,171 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:58:06,171 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:06,176 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:06,176 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:58:07,095 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-08 08:58:07,099 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,101 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 14 treesize of output 17 [2018-12-08 08:58:07,101 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,116 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,117 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,117 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 [2018-12-08 08:58:07,117 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,126 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,127 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:07,161 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,163 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:07,163 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,177 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,178 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,179 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:07,179 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,188 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,189 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:07,256 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,259 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,259 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 [2018-12-08 08:58:07,259 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,278 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:07,278 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,289 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,289 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:07,331 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,332 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,333 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:07,333 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,349 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:07,349 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,359 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,359 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:07,404 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,405 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,406 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:07,406 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,423 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:07,423 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,433 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,434 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 78 refuted. 0 times theorem prover too weak. 50 trivial. 20 not checked. [2018-12-08 08:58:07,462 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:58:07,835 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:58:07,835 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:58:07,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:58:07,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:58:07,905 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:58:07,908 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:58:07,908 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,916 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:58:07,916 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,921 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,921 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:58:07,927 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,928 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:07,929 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:58:07,929 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,944 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:07,944 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,955 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:07,955 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:58:08,913 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 [2018-12-08 08:58:08,918 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:08,921 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:58:08,921 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:08,939 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:08,940 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:08,940 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-12-08 08:58:08,941 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:08,959 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. [2018-12-08 08:58:08,959 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:34, output treesize:26 [2018-12-08 08:58:09,075 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:09,076 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:09,078 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:09,079 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 [2018-12-08 08:58:09,079 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:09,105 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 [2018-12-08 08:58:09,105 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:09,121 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:09,121 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:41, output treesize:14 [2018-12-08 08:58:09,127 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:09,130 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:09,130 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:09,145 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:09,146 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:09,146 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:09,146 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:09,156 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:09,156 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:09,193 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:09,195 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:09,195 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:09,209 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:09,210 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:09,211 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:09,211 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:09,221 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:09,221 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:09,230 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 78 refuted. 0 times theorem prover too weak. 42 trivial. 28 not checked. [2018-12-08 08:58:09,230 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:58:09,452 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:58:09,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20] total 22 [2018-12-08 08:58:09,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-12-08 08:58:09,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-12-08 08:58:09,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=432, Unknown=2, NotChecked=86, Total=600 [2018-12-08 08:58:09,452 INFO L87 Difference]: Start difference. First operand 89 states and 119 transitions. Second operand 23 states. [2018-12-08 08:58:11,175 WARN L180 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-12-08 08:58:12,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:58:12,190 INFO L93 Difference]: Finished difference Result 129 states and 173 transitions. [2018-12-08 08:58:12,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-08 08:58:12,190 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 67 [2018-12-08 08:58:12,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:58:12,191 INFO L225 Difference]: With dead ends: 129 [2018-12-08 08:58:12,191 INFO L226 Difference]: Without dead ends: 129 [2018-12-08 08:58:12,191 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 [2018-12-08 08:58:12,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-12-08 08:58:12,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 94. [2018-12-08 08:58:12,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-12-08 08:58:12,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 126 transitions. [2018-12-08 08:58:12,196 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 126 transitions. Word has length 67 [2018-12-08 08:58:12,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:58:12,196 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 126 transitions. [2018-12-08 08:58:12,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-12-08 08:58:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 126 transitions. [2018-12-08 08:58:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-08 08:58:12,197 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:58:12,197 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] [2018-12-08 08:58:12,197 INFO L423 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:58:12,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:58:12,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1212636396, now seen corresponding path program 2 times [2018-12-08 08:58:12,197 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:58:12,197 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:58:12,214 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-08 08:58:12,391 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 08:58:12,391 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:58:12,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:58:12,416 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:58:12,417 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:12,423 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:58:12,424 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:12,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:12,429 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:58:13,431 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-08 08:58:13,436 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:13,437 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 14 treesize of output 17 [2018-12-08 08:58:13,438 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:13,452 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:13,453 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:13,454 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:13,454 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:13,465 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:13,465 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:13,549 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:13,551 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 [2018-12-08 08:58:13,552 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:13,567 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:13,568 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:13,569 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:13,569 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:13,579 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:13,579 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:13,627 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:13,629 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:58:13,629 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:13,644 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:13,645 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:13,645 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:13,646 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:13,656 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:13,656 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:58:13,746 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:13,748 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:13,748 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 [2018-12-08 08:58:13,749 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:13,768 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:13,769 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:13,780 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:13,781 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:13,815 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 44 trivial. 24 not checked. [2018-12-08 08:58:13,815 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:58:14,171 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:58:14,171 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:58:14,178 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-08 08:58:14,235 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 08:58:14,236 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:58:14,240 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:58:14,244 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:58:14,244 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:14,252 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:58:14,252 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:14,259 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:14,259 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:58:15,110 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 [2018-12-08 08:58:15,116 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:15,118 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:58:15,118 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:15,137 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:15,138 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:15,138 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 [2018-12-08 08:58:15,139 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:15,154 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. [2018-12-08 08:58:15,154 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:36, output treesize:27 [2018-12-08 08:58:15,425 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:15,429 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 [2018-12-08 08:58:15,429 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:15,460 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:15,461 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:15,462 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:58:15,462 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 [2018-12-08 08:58:15,463 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:15,486 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. [2018-12-08 08:58:15,487 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:46, output treesize:44 [2018-12-08 08:58:15,636 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:15,637 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:58:15,637 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 [2018-12-08 08:58:15,638 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:15,689 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 [2018-12-08 08:58:15,689 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:15,725 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. [2018-12-08 08:58:15,726 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:61, output treesize:61 [2018-12-08 08:58:15,931 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:15,935 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 [2018-12-08 08:58:15,935 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:15,978 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:15,979 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:15,980 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:15,981 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:15,981 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:58:15,982 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 [2018-12-08 08:58:15,982 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:16,022 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:16,022 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 7 variables, input treesize:72, output treesize:14 [2018-12-08 08:58:16,034 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 38 trivial. 30 not checked. [2018-12-08 08:58:16,034 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:58:16,252 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:58:16,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 26 [2018-12-08 08:58:16,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-12-08 08:58:16,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-12-08 08:58:16,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=601, Unknown=2, NotChecked=102, Total=812 [2018-12-08 08:58:16,252 INFO L87 Difference]: Start difference. First operand 94 states and 126 transitions. Second operand 27 states. [2018-12-08 08:58:18,112 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2018-12-08 08:58:22,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:58:22,432 INFO L93 Difference]: Finished difference Result 143 states and 188 transitions. [2018-12-08 08:58:22,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-08 08:58:22,433 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 67 [2018-12-08 08:58:22,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:58:22,433 INFO L225 Difference]: With dead ends: 143 [2018-12-08 08:58:22,433 INFO L226 Difference]: Without dead ends: 143 [2018-12-08 08:58:22,434 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 106 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=237, Invalid=1749, Unknown=2, NotChecked=174, Total=2162 [2018-12-08 08:58:22,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-12-08 08:58:22,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 72. [2018-12-08 08:58:22,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-08 08:58:22,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 95 transitions. [2018-12-08 08:58:22,437 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 95 transitions. Word has length 67 [2018-12-08 08:58:22,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:58:22,437 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 95 transitions. [2018-12-08 08:58:22,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-12-08 08:58:22,437 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 95 transitions. [2018-12-08 08:58:22,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-12-08 08:58:22,438 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:58:22,438 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] [2018-12-08 08:58:22,438 INFO L423 AbstractCegarLoop]: === Iteration 16 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:58:22,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:58:22,438 INFO L82 PathProgramCache]: Analyzing trace with hash 440077534, now seen corresponding path program 6 times [2018-12-08 08:58:22,438 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:58:22,438 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:58:22,458 INFO L101 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2018-12-08 08:58:23,205 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-12-08 08:58:23,205 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:58:23,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:58:23,234 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:58:23,234 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:23,240 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:58:23,240 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:23,245 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:23,245 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:58:24,258 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 [2018-12-08 08:58:24,266 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:24,268 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:24,269 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 [2018-12-08 08:58:24,269 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:24,294 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:24,294 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:24,307 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. [2018-12-08 08:58:24,307 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:38, output treesize:29 [2018-12-08 08:58:24,364 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:24,367 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2018-12-08 08:58:24,368 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:24,397 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:24,398 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:24,399 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:58:24,399 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 [2018-12-08 08:58:24,399 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:24,422 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. [2018-12-08 08:58:24,422 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:46, output treesize:42 [2018-12-08 08:58:24,498 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:24,503 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 [2018-12-08 08:58:24,503 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:24,556 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:24,558 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:24,560 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:24,560 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:58:24,561 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 [2018-12-08 08:58:24,561 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:24,595 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. [2018-12-08 08:58:24,596 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:59, output treesize:59 [2018-12-08 08:58:25,602 WARN L180 SmtUtils]: Spent 851.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-12-08 08:58:25,608 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:25,609 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:25,610 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:25,611 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:25,612 INFO L683 Elim1Store]: detected equality via solver [2018-12-08 08:58:25,612 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 [2018-12-08 08:58:25,613 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:25,660 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 [2018-12-08 08:58:25,660 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:25,698 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:25,699 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:72, output treesize:18 [2018-12-08 08:58:25,821 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:25,823 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:25,823 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:25,823 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:25,839 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:25,839 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:25,850 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:25,850 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:18 [2018-12-08 08:58:25,950 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:25,951 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:25,952 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:25,967 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:25,968 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:25,968 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:58:25,968 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:25,978 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:25,978 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:18 [2018-12-08 08:58:27,056 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-08 08:58:27,060 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:27,063 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:58:27,063 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:27,078 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:27,078 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:27,079 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:58:27,079 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:27,089 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:27,089 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-12-08 08:58:27,136 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 7 proven. 112 refuted. 0 times theorem prover too weak. 54 trivial. 38 not checked. [2018-12-08 08:58:27,136 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:58:27,555 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:58:27,555 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:58:27,561 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-12-08 08:58:48,421 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2018-12-08 08:58:48,421 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:58:48,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:58:48,434 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:58:48,434 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,442 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:58:48,443 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,448 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,448 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:58:48,457 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,459 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:58:48,459 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,475 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,476 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,476 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:48,476 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,486 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,486 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:58:48,565 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,566 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,566 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:48,567 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,583 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:58:48,583 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,593 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,594 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:58:48,670 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,672 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,673 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:48,673 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,692 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:48,692 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,703 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,703 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:48,746 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,747 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,747 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:48,748 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,765 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:48,765 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,776 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,777 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:48,783 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,785 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:48,785 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,799 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,800 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,800 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:58:48,800 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,810 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:58:48,852 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,854 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:48,855 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,869 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,870 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,871 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:48,871 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,881 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,881 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:48,965 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,967 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:58:48,967 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,983 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,984 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:58:48,985 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:58:48,985 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,995 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:58:48,995 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:58:49,004 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 7 proven. 106 refuted. 0 times theorem prover too weak. 84 trivial. 14 not checked. [2018-12-08 08:58:49,004 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:58:49,283 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:58:49,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 21] total 32 [2018-12-08 08:58:49,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2018-12-08 08:58:49,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2018-12-08 08:58:49,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=935, Unknown=2, NotChecked=126, Total=1190 [2018-12-08 08:58:49,284 INFO L87 Difference]: Start difference. First operand 72 states and 95 transitions. Second operand 33 states. [2018-12-08 08:58:52,718 WARN L180 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2018-12-08 08:59:16,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:59:16,496 INFO L93 Difference]: Finished difference Result 101 states and 129 transitions. [2018-12-08 08:59:16,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-08 08:59:16,496 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 76 [2018-12-08 08:59:16,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:59:16,497 INFO L225 Difference]: With dead ends: 101 [2018-12-08 08:59:16,497 INFO L226 Difference]: Without dead ends: 101 [2018-12-08 08:59:16,498 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 119 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=306, Invalid=2780, Unknown=2, NotChecked=218, Total=3306 [2018-12-08 08:59:16,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-12-08 08:59:16,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 72. [2018-12-08 08:59:16,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-08 08:59:16,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 94 transitions. [2018-12-08 08:59:16,501 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 94 transitions. Word has length 76 [2018-12-08 08:59:16,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:59:16,501 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 94 transitions. [2018-12-08 08:59:16,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2018-12-08 08:59:16,501 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 94 transitions. [2018-12-08 08:59:16,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-12-08 08:59:16,502 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:59:16,502 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] [2018-12-08 08:59:16,502 INFO L423 AbstractCegarLoop]: === Iteration 17 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:59:16,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:59:16,503 INFO L82 PathProgramCache]: Analyzing trace with hash -912533644, now seen corresponding path program 7 times [2018-12-08 08:59:16,503 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:59:16,503 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:59:16,518 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 08:59:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:59:16,836 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:59:16,847 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:59:16,847 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:16,855 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:59:16,855 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:16,860 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:16,860 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:59:17,800 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-08 08:59:17,804 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:17,806 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:17,806 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 [2018-12-08 08:59:17,806 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:17,824 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:17,825 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:17,836 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:17,836 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:17,876 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:17,878 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:17,878 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:59:17,878 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:17,896 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:17,897 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:17,907 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:17,907 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:59:17,945 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:17,946 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:17,947 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:17,947 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:17,964 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:17,964 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:17,974 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:17,974 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:59:18,017 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,019 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,019 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:18,019 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,037 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:18,037 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,048 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,049 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:18,108 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,112 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:18,112 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,137 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,138 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,138 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:18,138 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,152 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,152 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:59:18,228 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,232 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:18,232 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,253 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,255 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,255 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:18,255 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,269 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,269 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:18,347 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,349 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,349 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:18,350 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,369 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 14 treesize of output 17 [2018-12-08 08:59:18,370 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,380 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,380 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:18,434 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,436 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:18,436 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,450 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,451 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:18,451 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:59:18,451 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,462 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:18,462 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-12-08 08:59:18,499 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 8 proven. 141 refuted. 0 times theorem prover too weak. 112 trivial. 16 not checked. [2018-12-08 08:59:18,499 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:59:18,941 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:59:18,941 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:59:18,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 08:59:19,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 08:59:19,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:59:19,045 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:59:19,045 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,053 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:59:19,053 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,059 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,059 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:59:19,066 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,068 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 14 treesize of output 17 [2018-12-08 08:59:19,068 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,091 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,092 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,092 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:59:19,092 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,103 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,103 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:59:19,109 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,113 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:19,113 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,128 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,129 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,129 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:59:19,129 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,139 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,139 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:59:19,146 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,150 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:19,150 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,170 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,172 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,172 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:19,172 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,187 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,187 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:19,194 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,196 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,196 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:19,197 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,218 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:19,218 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,230 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,230 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:19,236 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,237 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,238 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:19,238 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,255 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:19,255 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,266 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,266 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:19,273 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,274 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,275 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:19,275 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,291 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:19,291 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,302 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,302 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:19,308 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,310 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,310 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 [2018-12-08 08:59:19,310 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,326 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:19,326 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,336 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,336 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:59:19,376 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,378 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:19,378 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,392 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,393 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:19,394 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:19,394 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,404 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:19,404 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:19,416 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 8 proven. 141 refuted. 0 times theorem prover too weak. 112 trivial. 16 not checked. [2018-12-08 08:59:19,416 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:59:19,678 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:59:19,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2018-12-08 08:59:19,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-12-08 08:59:19,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-12-08 08:59:19,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=522, Unknown=1, NotChecked=46, Total=650 [2018-12-08 08:59:19,679 INFO L87 Difference]: Start difference. First operand 72 states and 94 transitions. Second operand 24 states. [2018-12-08 08:59:22,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:59:22,057 INFO L93 Difference]: Finished difference Result 88 states and 109 transitions. [2018-12-08 08:59:22,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-12-08 08:59:22,057 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 85 [2018-12-08 08:59:22,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:59:22,058 INFO L225 Difference]: With dead ends: 88 [2018-12-08 08:59:22,058 INFO L226 Difference]: Without dead ends: 88 [2018-12-08 08:59:22,058 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 148 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=201, Invalid=1782, Unknown=1, NotChecked=86, Total=2070 [2018-12-08 08:59:22,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2018-12-08 08:59:22,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 72. [2018-12-08 08:59:22,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-08 08:59:22,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 93 transitions. [2018-12-08 08:59:22,060 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 93 transitions. Word has length 85 [2018-12-08 08:59:22,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:59:22,061 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 93 transitions. [2018-12-08 08:59:22,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-12-08 08:59:22,061 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 93 transitions. [2018-12-08 08:59:22,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-12-08 08:59:22,062 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:59:22,062 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] [2018-12-08 08:59:22,062 INFO L423 AbstractCegarLoop]: === Iteration 18 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:59:22,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:59:22,063 INFO L82 PathProgramCache]: Analyzing trace with hash 2089194910, now seen corresponding path program 8 times [2018-12-08 08:59:22,063 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:59:22,063 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:59:22,077 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-12-08 08:59:22,413 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 08:59:22,413 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:59:22,435 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:59:22,445 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:59:22,445 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:22,453 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:59:22,454 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:22,459 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:22,459 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:59:23,381 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-08 08:59:23,386 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,388 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:23,389 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,405 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,406 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,407 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:23,407 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,418 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,418 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:23,451 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,453 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,453 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:23,453 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,470 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:23,471 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,481 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,481 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:23,520 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,523 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:23,523 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,537 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,538 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,538 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:59:23,538 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,548 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,548 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-12-08 08:59:23,588 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,590 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:23,590 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,604 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,605 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,605 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:23,605 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,616 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,616 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:59:23,662 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,663 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,664 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:23,664 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,681 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:23,682 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,692 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,692 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:23,745 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,747 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,747 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:23,747 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,768 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:23,768 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,782 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,782 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:23,879 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,881 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:23,882 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:23,882 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,908 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:23,908 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,926 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:23,926 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:59:24,012 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,015 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,015 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:24,016 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,048 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:24,049 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,064 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,065 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:24,153 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,156 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:24,156 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,171 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,172 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,173 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 [2018-12-08 08:59:24,173 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,183 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,183 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:59:24,224 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 9 proven. 181 refuted. 0 times theorem prover too weak. 144 trivial. 18 not checked. [2018-12-08 08:59:24,224 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:59:24,682 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:59:24,683 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:59:24,689 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-08 08:59:24,807 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-08 08:59:24,808 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:59:24,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:59:24,817 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:59:24,817 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,840 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:59:24,840 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,845 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,846 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:59:24,852 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,854 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:24,854 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,869 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,870 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,870 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:59:24,870 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,880 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,880 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:28, output treesize:12 [2018-12-08 08:59:24,886 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,888 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:24,888 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,902 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,903 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,904 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:59:24,904 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,914 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,914 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:59:24,920 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,923 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:24,923 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,938 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,939 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,939 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:24,939 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,948 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,948 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:59:24,954 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,956 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:24,957 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,971 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,972 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,973 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 08:59:24,973 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,984 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:24,984 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 08:59:24,990 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,991 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:24,991 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:24,992 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,006 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:25,006 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,017 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,017 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:25,023 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:25,024 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:25,025 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:25,025 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,043 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:25,043 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,053 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,054 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:59:25,059 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:25,061 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:25,061 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:25,061 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:25,078 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,088 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,089 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:59:25,095 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:25,098 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 [2018-12-08 08:59:25,098 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,113 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:25,114 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:25,114 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:25,114 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,126 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,126 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:25,197 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:25,199 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:25,199 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,215 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:25,215 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:25,216 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:25,216 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,226 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:25,226 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:25,241 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 9 proven. 181 refuted. 0 times theorem prover too weak. 144 trivial. 18 not checked. [2018-12-08 08:59:25,241 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:59:25,527 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 08:59:25,527 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2018-12-08 08:59:25,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-12-08 08:59:25,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-12-08 08:59:25,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=616, Unknown=1, NotChecked=50, Total=756 [2018-12-08 08:59:25,527 INFO L87 Difference]: Start difference. First operand 72 states and 93 transitions. Second operand 26 states. [2018-12-08 08:59:28,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 08:59:28,019 INFO L93 Difference]: Finished difference Result 90 states and 110 transitions. [2018-12-08 08:59:28,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-12-08 08:59:28,020 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 94 [2018-12-08 08:59:28,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 08:59:28,020 INFO L225 Difference]: With dead ends: 90 [2018-12-08 08:59:28,020 INFO L226 Difference]: Without dead ends: 90 [2018-12-08 08:59:28,021 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 163 SyntacticMatches, 3 SemanticMatches, 48 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=222, Invalid=2133, Unknown=1, NotChecked=94, Total=2450 [2018-12-08 08:59:28,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-12-08 08:59:28,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 72. [2018-12-08 08:59:28,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-08 08:59:28,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2018-12-08 08:59:28,023 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 94 [2018-12-08 08:59:28,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 08:59:28,023 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2018-12-08 08:59:28,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2018-12-08 08:59:28,023 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2018-12-08 08:59:28,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-12-08 08:59:28,024 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 08:59:28,024 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] [2018-12-08 08:59:28,024 INFO L423 AbstractCegarLoop]: === Iteration 19 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 08:59:28,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 08:59:28,024 INFO L82 PathProgramCache]: Analyzing trace with hash 115222196, now seen corresponding path program 9 times [2018-12-08 08:59:28,025 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 08:59:28,025 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:59:28,040 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-12-08 08:59:28,909 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-12-08 08:59:28,909 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 08:59:28,938 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 08:59:28,948 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:59:28,948 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:28,960 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-08 08:59:28,960 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:28,966 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:28,967 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 08:59:29,865 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 [2018-12-08 08:59:29,871 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:29,872 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:29,873 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-12-08 08:59:29,873 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:29,897 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:29,897 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:29,911 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. [2018-12-08 08:59:29,911 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:36, output treesize:28 [2018-12-08 08:59:30,901 WARN L180 SmtUtils]: Spent 921.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-12-08 08:59:30,906 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:30,908 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 [2018-12-08 08:59:30,909 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:30,929 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:30,931 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:30,932 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:30,932 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 [2018-12-08 08:59:30,932 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:30,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:30,949 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:39, output treesize:16 [2018-12-08 08:59:31,038 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:31,040 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 08:59:31,041 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:31,056 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:31,057 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:31,057 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 [2018-12-08 08:59:31,057 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:31,067 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:31,067 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:16 [2018-12-08 08:59:31,972 WARN L854 $PredicateComparison]: unable to prove that (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= |c_#length| (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size)) (= (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|) (_ bv0 1)))) is different from true [2018-12-08 08:59:31,979 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:31,982 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 [2018-12-08 08:59:31,982 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:31,997 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:31,998 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:31,998 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:31,998 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:32,008 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:32,009 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:32,073 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:32,075 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:32,075 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:32,075 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:32,101 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 [2018-12-08 08:59:32,101 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:32,113 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:32,113 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 08:59:32,268 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:32,275 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 [2018-12-08 08:59:32,275 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2018-12-08 08:59:32,288 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-12-08 08:59:32,289 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:33 [2018-12-08 08:59:32,477 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 [2018-12-08 08:59:32,477 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:32,512 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:32,516 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:32,524 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 [2018-12-08 08:59:32,524 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-12-08 08:59:32,550 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. [2018-12-08 08:59:32,550 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:50, output treesize:44 [2018-12-08 08:59:32,865 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:32,866 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:32,867 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 [2018-12-08 08:59:32,867 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:32,925 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:32,927 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:32,928 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 [2018-12-08 08:59:32,928 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:32,992 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:32,995 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:33,010 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 [2018-12-08 08:59:33,010 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-12-08 08:59:33,089 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 [2018-12-08 08:59:33,089 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:33,135 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. [2018-12-08 08:59:33,136 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:74, output treesize:66 [2018-12-08 08:59:33,520 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:33,521 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:33,521 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:33,536 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:33,537 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:33,537 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:33,538 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:33,547 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:33,547 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:33,767 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:33,769 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 08:59:33,769 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:33,784 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:33,784 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 08:59:33,785 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 08:59:33,785 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 08:59:33,795 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 08:59:33,795 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 08:59:33,864 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 18 proven. 272 refuted. 0 times theorem prover too weak. 78 trivial. 68 not checked. [2018-12-08 08:59:33,865 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 08:59:34,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 08:59:34,600 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FPBP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 08:59:34,606 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 09:00:00,590 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-12-08 09:00:00,590 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-08 09:00:00,602 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:00:00,606 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 [2018-12-08 09:00:00,606 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,616 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 [2018-12-08 09:00:00,616 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,621 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,621 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-12-08 09:00:00,629 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,631 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 09:00:00,632 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,647 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,649 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,649 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 09:00:00,649 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,665 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,665 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 09:00:00,722 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,723 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,724 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 09:00:00,724 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,738 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 09:00:00,738 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,748 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 09:00:00,754 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,757 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 09:00:00,757 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,771 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,772 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,773 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 11 treesize of output 4 [2018-12-08 09:00:00,773 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,783 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,783 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 09:00:00,789 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,791 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 12 treesize of output 15 [2018-12-08 09:00:00,791 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,806 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,807 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,807 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 09:00:00,807 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,819 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,819 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2018-12-08 09:00:00,825 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,828 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 09:00:00,828 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,843 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,844 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,844 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 09:00:00,844 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,855 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,855 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 09:00:00,915 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,917 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 09:00:00,917 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,932 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,933 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:00,933 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-12-08 09:00:00,933 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,944 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:00:00,944 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2018-12-08 09:00:01,000 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:01,002 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 09:00:01,003 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:01,017 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:01,018 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:01,018 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 09:00:01,018 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:01,029 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:00:01,029 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 09:00:01,121 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:01,123 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-12-08 09:00:01,123 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:01,139 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:01,139 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:01,140 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 09:00:01,140 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:01,150 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:00:01,150 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 09:00:01,214 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:01,215 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 09:00:01,216 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:01,231 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:01,232 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:01,232 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 09:00:01,233 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:01,245 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:00:01,245 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 09:00:01,336 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:01,338 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2018-12-08 09:00:01,338 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:01,356 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:01,357 INFO L701 Elim1Store]: detected not equals via solver [2018-12-08 09:00:01,357 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2018-12-08 09:00:01,358 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-12-08 09:00:01,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 09:00:01,369 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:14 [2018-12-08 09:00:01,386 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 10 proven. 226 refuted. 0 times theorem prover too weak. 180 trivial. 20 not checked. [2018-12-08 09:00:01,387 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 09:00:01,760 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-08 09:00:01,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 27] total 44 [2018-12-08 09:00:01,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 45 states [2018-12-08 09:00:01,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2018-12-08 09:00:01,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1833, Unknown=2, NotChecked=174, Total=2162 [2018-12-08 09:00:01,761 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand 45 states. [2018-12-08 09:00:05,209 WARN L180 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 37 DAG size of output: 30 [2018-12-08 09:00:34,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:00:34,163 INFO L93 Difference]: Finished difference Result 101 states and 129 transitions. [2018-12-08 09:00:34,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-12-08 09:00:34,163 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 103 [2018-12-08 09:00:34,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 09:00:34,164 INFO L225 Difference]: With dead ends: 101 [2018-12-08 09:00:34,164 INFO L226 Difference]: Without dead ends: 101 [2018-12-08 09:00:34,165 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 [2018-12-08 09:00:34,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-12-08 09:00:34,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 75. [2018-12-08 09:00:34,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-12-08 09:00:34,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2018-12-08 09:00:34,168 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 103 [2018-12-08 09:00:34,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 09:00:34,168 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2018-12-08 09:00:34,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2018-12-08 09:00:34,168 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2018-12-08 09:00:34,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-12-08 09:00:34,169 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 09:00:34,169 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] [2018-12-08 09:00:34,170 INFO L423 AbstractCegarLoop]: === Iteration 20 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_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_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2018-12-08 09:00:34,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:00:34,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1358130649, now seen corresponding path program 3 times [2018-12-08 09:00:34,170 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-12-08 09:00:34,170 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f05cd2f2-8522-40fe-8186-e265c5730547/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 [2018-12-08 09:00:34,187 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-08 09:00:35,760 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2018-12-08 09:00:35,760 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2018-12-08 09:00:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:00:37,391 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 09:00:37,409 WARN L416 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2018-12-08 09:00:37,415 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-08 09:00:37,415 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2018-12-08 09:00:37,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:00:37 BoogieIcfgContainer [2018-12-08 09:00:37,432 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 09:00:37,432 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 09:00:37,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 09:00:37,432 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 09:00:37,432 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 08:57:07" (3/4) ... [2018-12-08 09:00:37,436 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 09:00:37,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 09:00:37,436 INFO L168 Benchmark]: Toolchain (without parser) took 210941.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 939.4 MB in the beginning and 931.9 MB in the end (delta: 7.4 MB). Peak memory consumption was 206.2 MB. Max. memory is 11.5 GB. [2018-12-08 09:00:37,437 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:00:37,437 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -164.7 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. [2018-12-08 09:00:37,437 INFO L168 Benchmark]: Boogie Preprocessor took 44.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:00:37,437 INFO L168 Benchmark]: RCFGBuilder took 756.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.9 MB in the end (delta: 119.1 MB). Peak memory consumption was 119.1 MB. Max. memory is 11.5 GB. [2018-12-08 09:00:37,437 INFO L168 Benchmark]: TraceAbstraction took 209775.95 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 984.9 MB in the beginning and 931.9 MB in the end (delta: 53.0 MB). Peak memory consumption was 114.9 MB. Max. memory is 11.5 GB. [2018-12-08 09:00:37,437 INFO L168 Benchmark]: Witness Printer took 3.87 ms. Allocated memory is still 1.2 GB. Free memory is still 931.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:00:37,438 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 357.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -164.7 MB). Peak memory consumption was 37.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.36 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 756.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.9 MB in the end (delta: 119.1 MB). Peak memory consumption was 119.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 209775.95 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 984.9 MB in the beginning and 931.9 MB in the end (delta: 53.0 MB). Peak memory consumption was 114.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.87 ms. Allocated memory is still 1.2 GB. Free memory is still 931.9 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