./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d89c445fb84f685368054c8df68afcdc64e8108 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 05:47:46,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:47:46,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:47:46,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:47:46,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:47:46,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:47:46,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:47:46,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:47:46,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:47:46,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:47:46,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:47:46,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:47:46,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:47:46,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:47:46,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:47:46,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:47:46,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:47:46,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:47:46,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:47:46,291 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:47:46,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:47:46,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:47:46,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:47:46,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:47:46,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:47:46,303 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:47:46,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:47:46,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:47:46,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:47:46,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:47:46,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:47:46,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:47:46,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:47:46,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:47:46,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:47:46,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:47:46,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:47:46,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:47:46,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:47:46,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:47:46,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:47:46,311 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 05:47:46,334 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:47:46,334 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:47:46,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:47:46,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:47:46,336 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:47:46,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:47:46,336 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:47:46,336 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 05:47:46,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:47:46,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:47:46,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:47:46,337 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 05:47:46,337 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 05:47:46,337 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 05:47:46,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:47:46,338 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 05:47:46,338 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 05:47:46,338 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:47:46,338 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:47:46,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:47:46,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:47:46,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:47:46,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:47:46,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:47:46,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:47:46,339 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:47:46,340 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 05:47:46,340 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 05:47:46,340 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 05:47:46,340 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d89c445fb84f685368054c8df68afcdc64e8108 [2019-11-20 05:47:46,512 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:47:46,529 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:47:46,532 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:47:46,533 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:47:46,534 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:47:46,534 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2019-11-20 05:47:46,592 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/data/4402e13db/d125bec4896544948ba0fde519d48479/FLAG2f97a147c [2019-11-20 05:47:47,082 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:47:47,082 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/sv-benchmarks/c/ldv-memsafety/memleaks_test8.i [2019-11-20 05:47:47,105 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/data/4402e13db/d125bec4896544948ba0fde519d48479/FLAG2f97a147c [2019-11-20 05:47:47,389 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/data/4402e13db/d125bec4896544948ba0fde519d48479 [2019-11-20 05:47:47,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:47:47,392 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 05:47:47,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:47:47,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:47:47,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:47:47,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:47:47" (1/1) ... [2019-11-20 05:47:47,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ad8787 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:47, skipping insertion in model container [2019-11-20 05:47:47,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:47:47" (1/1) ... [2019-11-20 05:47:47,405 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:47:47,452 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:47:47,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:47:47,875 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:47:47,962 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:47:48,047 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:47:48,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:48 WrapperNode [2019-11-20 05:47:48,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:47:48,049 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:47:48,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:47:48,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:47:48,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:48" (1/1) ... [2019-11-20 05:47:48,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:48" (1/1) ... [2019-11-20 05:47:48,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:48" (1/1) ... [2019-11-20 05:47:48,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:48" (1/1) ... [2019-11-20 05:47:48,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:48" (1/1) ... [2019-11-20 05:47:48,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:48" (1/1) ... [2019-11-20 05:47:48,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:48" (1/1) ... [2019-11-20 05:47:48,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:47:48,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:47:48,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:47:48,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:47:48,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:47:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 05:47:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:47:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 05:47:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 05:47:48,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 05:47:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 05:47:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 05:47:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 05:47:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 05:47:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 05:47:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 05:47:48,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 05:47:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 05:47:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 05:47:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 05:47:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 05:47:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 05:47:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 05:47:48,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 05:47:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 05:47:48,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 05:47:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 05:47:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 05:47:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 05:47:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 05:47:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 05:47:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 05:47:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 05:47:48,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 05:47:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 05:47:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 05:47:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 05:47:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 05:47:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 05:47:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 05:47:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 05:47:48,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 05:47:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 05:47:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 05:47:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 05:47:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 05:47:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_8 [2019-11-20 05:47:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure free_8 [2019-11-20 05:47:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 05:47:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 05:47:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 05:47:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 05:47:48,246 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 05:47:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 05:47:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 05:47:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 05:47:48,246 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 05:47:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 05:47:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 05:47:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 05:47:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 05:47:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 05:47:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 05:47:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 05:47:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 05:47:48,247 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 05:47:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 05:47:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 05:47:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 05:47:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 05:47:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 05:47:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 05:47:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 05:47:48,248 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 05:47:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 05:47:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 05:47:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 05:47:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 05:47:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 05:47:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 05:47:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 05:47:48,249 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 05:47:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 05:47:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 05:47:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 05:47:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 05:47:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 05:47:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 05:47:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 05:47:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 05:47:48,250 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 05:47:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 05:47:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 05:47:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 05:47:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 05:47:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 05:47:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 05:47:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 05:47:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 05:47:48,251 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 05:47:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 05:47:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 05:47:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 05:47:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 05:47:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 05:47:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 05:47:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 05:47:48,252 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 05:47:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 05:47:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 05:47:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 05:47:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 05:47:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 05:47:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 05:47:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 05:47:48,253 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 05:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 05:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 05:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 05:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 05:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 05:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 05:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 05:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 05:47:48,254 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 05:47:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 05:47:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 05:47:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 05:47:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 05:47:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 05:47:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 05:47:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 05:47:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 05:47:48,255 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 05:47:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 05:47:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 05:47:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 05:47:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 05:47:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 05:47:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 05:47:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 05:47:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 05:47:48,256 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 05:47:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 05:47:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 05:47:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 05:47:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 05:47:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 05:47:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 05:47:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 05:47:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 05:47:48,257 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 05:47:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 05:47:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 05:47:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 05:47:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 05:47:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 05:47:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 05:47:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 05:47:48,258 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 05:47:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 05:47:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 05:47:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 05:47:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 05:47:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 05:47:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 05:47:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 05:47:48,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 05:47:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 05:47:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 05:47:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 05:47:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 05:47:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 05:47:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 05:47:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 05:47:48,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 05:47:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 05:47:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 05:47:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 05:47:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 05:47:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 05:47:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 05:47:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 05:47:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 05:47:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 05:47:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 05:47:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 05:47:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 05:47:48,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 05:47:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 05:47:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 05:47:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 05:47:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 05:47:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 05:47:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 05:47:48,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 05:47:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 05:47:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 05:47:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 05:47:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 05:47:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 05:47:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 05:47:48,264 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 05:47:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 05:47:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 05:47:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 05:47:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 05:47:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 05:47:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_8 [2019-11-20 05:47:48,265 INFO L130 BoogieDeclarations]: Found specification of procedure free_8 [2019-11-20 05:47:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 05:47:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 05:47:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 05:47:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 05:47:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 05:47:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:47:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 05:47:48,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 05:47:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 05:47:48,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 05:47:48,897 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 05:47:49,313 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 05:47:49,672 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:47:49,672 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 05:47:49,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:49 BoogieIcfgContainer [2019-11-20 05:47:49,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:47:49,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:47:49,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:47:49,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:47:49,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:47:47" (1/3) ... [2019-11-20 05:47:49,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d1378d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:47:49, skipping insertion in model container [2019-11-20 05:47:49,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:48" (2/3) ... [2019-11-20 05:47:49,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d1378d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:47:49, skipping insertion in model container [2019-11-20 05:47:49,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:49" (3/3) ... [2019-11-20 05:47:49,680 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test8.i [2019-11-20 05:47:49,690 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:47:49,698 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-20 05:47:49,710 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-20 05:47:49,732 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:47:49,732 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 05:47:49,732 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:47:49,733 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:47:49,733 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:47:49,733 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:47:49,733 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:47:49,733 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:47:49,759 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states. [2019-11-20 05:47:49,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-20 05:47:49,769 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:47:49,770 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:47:49,772 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 05:47:49,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:49,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1490989935, now seen corresponding path program 1 times [2019-11-20 05:47:49,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:47:49,793 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1624633138] [2019-11-20 05:47:49,793 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:50,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 05:47:50,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:50,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:50,126 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:47:50,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:50,224 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1624633138] [2019-11-20 05:47:50,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:47:50,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 05:47:50,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748065341] [2019-11-20 05:47:50,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 05:47:50,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:47:50,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 05:47:50,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 05:47:50,247 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 5 states. [2019-11-20 05:47:50,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:47:50,329 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2019-11-20 05:47:50,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 05:47:50,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2019-11-20 05:47:50,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:47:50,340 INFO L225 Difference]: With dead ends: 32 [2019-11-20 05:47:50,340 INFO L226 Difference]: Without dead ends: 29 [2019-11-20 05:47:50,347 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-20 05:47:50,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-20 05:47:50,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-20 05:47:50,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-20 05:47:50,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-20 05:47:50,387 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 18 [2019-11-20 05:47:50,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:47:50,388 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-20 05:47:50,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 05:47:50,388 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-20 05:47:50,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 05:47:50,389 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:47:50,389 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:47:50,600 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:50,601 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 05:47:50,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:50,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1023951986, now seen corresponding path program 1 times [2019-11-20 05:47:50,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:47:50,602 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1588135669] [2019-11-20 05:47:50,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:50,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 05:47:50,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:51,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:51,017 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:47:51,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:51,175 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1588135669] [2019-11-20 05:47:51,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:47:51,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-20 05:47:51,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689325260] [2019-11-20 05:47:51,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 05:47:51,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:47:51,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 05:47:51,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 05:47:51,178 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 9 states. [2019-11-20 05:47:51,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:47:51,361 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-11-20 05:47:51,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 05:47:51,362 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 19 [2019-11-20 05:47:51,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:47:51,363 INFO L225 Difference]: With dead ends: 28 [2019-11-20 05:47:51,363 INFO L226 Difference]: Without dead ends: 28 [2019-11-20 05:47:51,364 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-11-20 05:47:51,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-11-20 05:47:51,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-11-20 05:47:51,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-20 05:47:51,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-20 05:47:51,368 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 19 [2019-11-20 05:47:51,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:47:51,368 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-20 05:47:51,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 05:47:51,368 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-20 05:47:51,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 05:47:51,371 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:47:51,371 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:47:51,575 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:51,576 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 05:47:51,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:51,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1677740207, now seen corresponding path program 1 times [2019-11-20 05:47:51,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:47:51,578 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [10303966] [2019-11-20 05:47:51,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:51,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:51,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 05:47:51,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:51,910 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-20 05:47:51,911 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:47:51,914 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:47:51,914 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:47:51,915 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 05:47:51,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:51,942 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:47:52,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:52,049 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [10303966] [2019-11-20 05:47:52,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:47:52,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-20 05:47:52,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435680718] [2019-11-20 05:47:52,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 05:47:52,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:47:52,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 05:47:52,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 05:47:52,051 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 5 states. [2019-11-20 05:47:52,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:47:52,128 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2019-11-20 05:47:52,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 05:47:52,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-20 05:47:52,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:47:52,132 INFO L225 Difference]: With dead ends: 41 [2019-11-20 05:47:52,132 INFO L226 Difference]: Without dead ends: 41 [2019-11-20 05:47:52,132 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 05:47:52,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-20 05:47:52,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2019-11-20 05:47:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-11-20 05:47:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2019-11-20 05:47:52,149 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 20 [2019-11-20 05:47:52,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:47:52,149 INFO L462 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2019-11-20 05:47:52,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 05:47:52,150 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2019-11-20 05:47:52,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 05:47:52,152 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:47:52,152 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:47:52,356 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:52,357 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 05:47:52,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:52,357 INFO L82 PathProgramCache]: Analyzing trace with hash 820275730, now seen corresponding path program 1 times [2019-11-20 05:47:52,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:47:52,358 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [940866344] [2019-11-20 05:47:52,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:52,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:52,592 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 05:47:52,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:52,623 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:47:52,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:52,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [940866344] [2019-11-20 05:47:52,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:47:52,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-20 05:47:52,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213682879] [2019-11-20 05:47:52,672 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 05:47:52,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:47:52,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 05:47:52,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:47:52,673 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 6 states. [2019-11-20 05:47:52,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:47:52,731 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2019-11-20 05:47:52,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 05:47:52,733 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-20 05:47:52,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:47:52,734 INFO L225 Difference]: With dead ends: 40 [2019-11-20 05:47:52,734 INFO L226 Difference]: Without dead ends: 39 [2019-11-20 05:47:52,735 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-20 05:47:52,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-20 05:47:52,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 36. [2019-11-20 05:47:52,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-20 05:47:52,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2019-11-20 05:47:52,740 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 20 [2019-11-20 05:47:52,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:47:52,741 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2019-11-20 05:47:52,741 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 05:47:52,741 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2019-11-20 05:47:52,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 05:47:52,742 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:47:52,742 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:47:52,944 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:52,945 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 05:47:52,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:52,945 INFO L82 PathProgramCache]: Analyzing trace with hash -2124806348, now seen corresponding path program 1 times [2019-11-20 05:47:52,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:47:52,946 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1142635037] [2019-11-20 05:47:52,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:53,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:53,181 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-20 05:47:53,183 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:53,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:53,206 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:47:53,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:53,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1142635037] [2019-11-20 05:47:53,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:47:53,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 6 [2019-11-20 05:47:53,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667428565] [2019-11-20 05:47:53,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 05:47:53,389 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:47:53,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 05:47:53,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-20 05:47:53,390 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 6 states. [2019-11-20 05:47:53,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:47:53,471 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-11-20 05:47:53,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 05:47:53,472 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2019-11-20 05:47:53,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:47:53,473 INFO L225 Difference]: With dead ends: 37 [2019-11-20 05:47:53,473 INFO L226 Difference]: Without dead ends: 37 [2019-11-20 05:47:53,474 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-20 05:47:53,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-20 05:47:53,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2019-11-20 05:47:53,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-20 05:47:53,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2019-11-20 05:47:53,479 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 23 [2019-11-20 05:47:53,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:47:53,479 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2019-11-20 05:47:53,479 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 05:47:53,480 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2019-11-20 05:47:53,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 05:47:53,480 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:47:53,481 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:47:53,681 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:53,681 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 05:47:53,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:53,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1664602323, now seen corresponding path program 1 times [2019-11-20 05:47:53,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:47:53,682 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [538348255] [2019-11-20 05:47:53,683 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:53,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 05:47:53,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:53,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:53,964 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:47:54,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:54,133 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [538348255] [2019-11-20 05:47:54,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:47:54,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 05:47:54,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379327890] [2019-11-20 05:47:54,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 05:47:54,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 05:47:54,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 05:47:54,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:47:54,135 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand 3 states. [2019-11-20 05:47:54,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:47:54,180 INFO L93 Difference]: Finished difference Result 40 states and 39 transitions. [2019-11-20 05:47:54,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 05:47:54,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-20 05:47:54,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:47:54,181 INFO L225 Difference]: With dead ends: 40 [2019-11-20 05:47:54,181 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 05:47:54,182 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 05:47:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 05:47:54,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-20 05:47:54,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 05:47:54,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2019-11-20 05:47:54,186 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 23 [2019-11-20 05:47:54,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:47:54,186 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2019-11-20 05:47:54,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 05:47:54,186 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2019-11-20 05:47:54,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 05:47:54,187 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:47:54,188 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:47:54,388 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:54,389 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, free_8Err1ASSERT_VIOLATIONMEMORY_FREE, free_8Err0ASSERT_VIOLATIONMEMORY_FREE, free_8Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 05:47:54,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:54,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1136410223, now seen corresponding path program 1 times [2019-11-20 05:47:54,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 05:47:54,390 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [759650949] [2019-11-20 05:47:54,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cfe650e2-c553-4514-beab-9cb5063052d1/bin/uautomizer/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:47:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:54,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-20 05:47:54,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:54,704 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:47:54,704 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-20 05:47:54,705 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:47:54,724 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-20 05:47:54,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:47:54,727 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-20 05:47:54,728 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-20 05:47:54,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:47:54,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:47:54,752 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:47:54,761 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 05:47:54,884 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-20 05:47:54,885 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 05:47:54,889 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 05:47:54,889 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 05:47:54,889 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-20 05:48:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:48:01,005 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 05:48:07,430 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 05:48:07,431 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-20 05:48:07,434 INFO L168 Benchmark]: Toolchain (without parser) took 20041.96 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 255.3 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -186.8 MB). Peak memory consumption was 68.5 MB. Max. memory is 11.5 GB. [2019-11-20 05:48:07,434 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:48:07,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 655.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.0 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -219.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-20 05:48:07,435 INFO L168 Benchmark]: Boogie Preprocessor took 116.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:48:07,435 INFO L168 Benchmark]: RCFGBuilder took 1508.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 109.2 MB). Peak memory consumption was 109.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:48:07,436 INFO L168 Benchmark]: TraceAbstraction took 17758.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 49.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -82.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:48:07,438 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 655.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.0 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -219.4 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 116.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1508.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 109.2 MB). Peak memory consumption was 109.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17758.18 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 49.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -82.0 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...