./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 678e0110 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 1c12c64cb0672f0b7adf7ed2c7ccf016f73bc65a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-678e011 [2019-11-20 11:07:07,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 11:07:07,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 11:07:07,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 11:07:07,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 11:07:07,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 11:07:07,303 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 11:07:07,305 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 11:07:07,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 11:07:07,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 11:07:07,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 11:07:07,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 11:07:07,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 11:07:07,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 11:07:07,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 11:07:07,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 11:07:07,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 11:07:07,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 11:07:07,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 11:07:07,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 11:07:07,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 11:07:07,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 11:07:07,327 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 11:07:07,328 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 11:07:07,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 11:07:07,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 11:07:07,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 11:07:07,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 11:07:07,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 11:07:07,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 11:07:07,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 11:07:07,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 11:07:07,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 11:07:07,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 11:07:07,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 11:07:07,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 11:07:07,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 11:07:07,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 11:07:07,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 11:07:07,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 11:07:07,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 11:07:07,344 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-20 11:07:07,359 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 11:07:07,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 11:07:07,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 11:07:07,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 11:07:07,361 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 11:07:07,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 11:07:07,362 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 11:07:07,362 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 11:07:07,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 11:07:07,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 11:07:07,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 11:07:07,363 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 11:07:07,363 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 11:07:07,364 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 11:07:07,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 11:07:07,364 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 11:07:07,364 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 11:07:07,365 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 11:07:07,365 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 11:07:07,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 11:07:07,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 11:07:07,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 11:07:07,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 11:07:07,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 11:07:07,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 11:07:07,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 11:07:07,367 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 11:07:07,368 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 11:07:07,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 11:07:07,368 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 1c12c64cb0672f0b7adf7ed2c7ccf016f73bc65a [2019-11-20 11:07:07,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 11:07:07,685 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 11:07:07,689 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 11:07:07,690 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 11:07:07,691 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 11:07:07,692 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2019-11-20 11:07:07,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45aa1df1c/12a27ffe94e54cce8dd954fd50646eb2/FLAGd0a0a80f9 [2019-11-20 11:07:08,300 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 11:07:08,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2019-11-20 11:07:08,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45aa1df1c/12a27ffe94e54cce8dd954fd50646eb2/FLAGd0a0a80f9 [2019-11-20 11:07:08,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45aa1df1c/12a27ffe94e54cce8dd954fd50646eb2 [2019-11-20 11:07:08,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 11:07:08,609 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 11:07:08,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 11:07:08,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 11:07:08,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 11:07:08,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:07:08" (1/1) ... [2019-11-20 11:07:08,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41434439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:08, skipping insertion in model container [2019-11-20 11:07:08,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:07:08" (1/1) ... [2019-11-20 11:07:08,630 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 11:07:08,695 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 11:07:09,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:07:09,280 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 11:07:09,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 11:07:09,432 INFO L192 MainTranslator]: Completed translation [2019-11-20 11:07:09,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:09 WrapperNode [2019-11-20 11:07:09,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 11:07:09,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 11:07:09,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 11:07:09,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 11:07:09,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:09" (1/1) ... [2019-11-20 11:07:09,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:09" (1/1) ... [2019-11-20 11:07:09,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:09" (1/1) ... [2019-11-20 11:07:09,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:09" (1/1) ... [2019-11-20 11:07:09,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:09" (1/1) ... [2019-11-20 11:07:09,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:09" (1/1) ... [2019-11-20 11:07:09,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:09" (1/1) ... [2019-11-20 11:07:09,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 11:07:09,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 11:07:09,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 11:07:09,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 11:07:09,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 11:07:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 11:07:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 11:07:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 11:07:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 11:07:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 11:07:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 11:07:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 11:07:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 11:07:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 11:07:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 11:07:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 11:07:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 11:07:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 11:07:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 11:07:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 11:07:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 11:07:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 11:07:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 11:07:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 11:07:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 11:07:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 11:07:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 11:07:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 11:07:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 11:07:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 11:07:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 11:07:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 11:07:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 11:07:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 11:07:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 11:07:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 11:07:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 11:07:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 11:07:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 11:07:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 11:07:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 11:07:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 11:07:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 11:07:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 11:07:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 11:07:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 11:07:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_unsafe_16 [2019-11-20 11:07:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure free_16 [2019-11-20 11:07:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 11:07:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 11:07:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 11:07:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 11:07:09,633 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 11:07:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 11:07:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 11:07:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 11:07:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 11:07:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 11:07:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 11:07:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 11:07:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 11:07:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 11:07:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 11:07:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 11:07:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 11:07:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 11:07:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 11:07:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 11:07:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 11:07:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 11:07:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 11:07:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 11:07:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 11:07:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 11:07:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 11:07:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 11:07:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 11:07:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 11:07:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 11:07:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 11:07:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 11:07:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 11:07:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 11:07:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 11:07:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 11:07:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 11:07:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 11:07:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 11:07:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 11:07:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 11:07:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 11:07:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 11:07:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 11:07:09,639 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 11:07:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 11:07:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 11:07:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 11:07:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 11:07:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 11:07:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 11:07:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 11:07:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 11:07:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 11:07:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 11:07:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 11:07:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 11:07:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 11:07:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 11:07:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 11:07:09,641 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 11:07:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 11:07:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 11:07:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 11:07:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 11:07:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 11:07:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 11:07:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 11:07:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 11:07:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 11:07:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 11:07:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 11:07:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 11:07:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 11:07:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 11:07:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 11:07:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 11:07:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 11:07:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 11:07:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 11:07:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 11:07:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 11:07:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 11:07:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 11:07:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 11:07:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 11:07:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 11:07:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 11:07:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 11:07:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 11:07:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 11:07:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 11:07:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 11:07:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 11:07:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 11:07:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 11:07:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 11:07:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 11:07:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 11:07:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 11:07:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 11:07:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 11:07:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 11:07:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 11:07:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 11:07:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 11:07:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 11:07:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 11:07:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 11:07:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 11:07:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 11:07:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 11:07:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 11:07:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 11:07:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 11:07:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 11:07:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 11:07:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 11:07:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 11:07:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 11:07:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 11:07:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 11:07:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 11:07:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 11:07:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 11:07:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 11:07:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 11:07:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 11:07:09,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 11:07:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 11:07:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 11:07:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 11:07:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 11:07:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 11:07:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 11:07:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 11:07:09,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 11:07:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 11:07:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 11:07:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 11:07:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 11:07:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 11:07:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 11:07:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 11:07:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 11:07:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 11:07:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 11:07:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 11:07:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 11:07:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 11:07:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 11:07:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 11:07:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 11:07:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 11:07:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 11:07:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 11:07:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 11:07:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 11:07:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 11:07:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_unsafe_16 [2019-11-20 11:07:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure free_16 [2019-11-20 11:07:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 11:07:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 11:07:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 11:07:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 11:07:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 11:07:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 11:07:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 11:07:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 11:07:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 11:07:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 11:07:10,313 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 11:07:10,767 WARN L736 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 11:07:11,194 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 11:07:11,197 INFO L285 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 11:07:11,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:07:11 BoogieIcfgContainer [2019-11-20 11:07:11,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 11:07:11,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 11:07:11,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 11:07:11,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 11:07:11,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:07:08" (1/3) ... [2019-11-20 11:07:11,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717b8697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:07:11, skipping insertion in model container [2019-11-20 11:07:11,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:07:09" (2/3) ... [2019-11-20 11:07:11,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717b8697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:07:11, skipping insertion in model container [2019-11-20 11:07:11,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:07:11" (3/3) ... [2019-11-20 11:07:11,210 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test16_1.i [2019-11-20 11:07:11,221 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 11:07:11,233 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-20 11:07:11,247 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-20 11:07:11,272 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 11:07:11,273 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 11:07:11,273 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 11:07:11,274 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 11:07:11,274 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 11:07:11,274 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 11:07:11,274 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 11:07:11,275 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 11:07:11,303 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2019-11-20 11:07:11,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 11:07:11,319 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:11,321 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] [2019-11-20 11:07:11,322 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:11,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:11,333 INFO L82 PathProgramCache]: Analyzing trace with hash 370919064, now seen corresponding path program 1 times [2019-11-20 11:07:11,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:11,350 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [873400075] [2019-11-20 11:07:11,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 11:07:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:11,790 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 11:07:11,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:11,930 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 11:07:11,936 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:12,090 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 11:07:12,091 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [873400075] [2019-11-20 11:07:12,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:12,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-20 11:07:12,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759815117] [2019-11-20 11:07:12,105 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 11:07:12,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:12,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 11:07:12,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:07:12,124 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 9 states. [2019-11-20 11:07:12,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:12,225 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2019-11-20 11:07:12,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 11:07:12,227 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2019-11-20 11:07:12,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:12,237 INFO L225 Difference]: With dead ends: 35 [2019-11-20 11:07:12,237 INFO L226 Difference]: Without dead ends: 32 [2019-11-20 11:07:12,239 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:07:12,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-20 11:07:12,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-11-20 11:07:12,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-20 11:07:12,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2019-11-20 11:07:12,272 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 22 [2019-11-20 11:07:12,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:12,273 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2019-11-20 11:07:12,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 11:07:12,273 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2019-11-20 11:07:12,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 11:07:12,274 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:12,274 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 11:07:12,478 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:12,479 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:12,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:12,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1386410531, now seen corresponding path program 1 times [2019-11-20 11:07:12,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:12,482 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [882392399] [2019-11-20 11:07:12,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 11:07:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:12,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 11:07:12,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:12,972 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 11:07:12,973 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:13,265 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 11:07:13,266 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [882392399] [2019-11-20 11:07:13,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:13,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 16 [2019-11-20 11:07:13,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096544160] [2019-11-20 11:07:13,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-20 11:07:13,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:13,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-20 11:07:13,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-11-20 11:07:13,273 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 17 states. [2019-11-20 11:07:13,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:13,679 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2019-11-20 11:07:13,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 11:07:13,680 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 23 [2019-11-20 11:07:13,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:13,682 INFO L225 Difference]: With dead ends: 31 [2019-11-20 11:07:13,682 INFO L226 Difference]: Without dead ends: 31 [2019-11-20 11:07:13,683 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-11-20 11:07:13,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-20 11:07:13,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-20 11:07:13,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 11:07:13,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-20 11:07:13,689 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 23 [2019-11-20 11:07:13,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:13,689 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-20 11:07:13,689 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-20 11:07:13,689 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-20 11:07:13,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 11:07:13,690 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:13,690 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] [2019-11-20 11:07:13,901 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:13,902 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:13,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:13,903 INFO L82 PathProgramCache]: Analyzing trace with hash -29053126, now seen corresponding path program 1 times [2019-11-20 11:07:13,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:13,904 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1305269894] [2019-11-20 11:07:13,904 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 11:07:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:14,136 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 11:07:14,139 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:14,184 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 11:07:14,185 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 11:07:14,188 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 11:07:14,188 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 11:07:14,188 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 11:07:14,274 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 11:07:14,274 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:14,407 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 11:07:14,407 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1305269894] [2019-11-20 11:07:14,407 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:14,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-20 11:07:14,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519269571] [2019-11-20 11:07:14,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 11:07:14,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:14,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 11:07:14,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:07:14,409 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 9 states. [2019-11-20 11:07:14,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:14,556 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2019-11-20 11:07:14,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 11:07:14,556 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-20 11:07:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:14,559 INFO L225 Difference]: With dead ends: 47 [2019-11-20 11:07:14,559 INFO L226 Difference]: Without dead ends: 47 [2019-11-20 11:07:14,560 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:07:14,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-20 11:07:14,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2019-11-20 11:07:14,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-20 11:07:14,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2019-11-20 11:07:14,572 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 24 [2019-11-20 11:07:14,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:14,573 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2019-11-20 11:07:14,573 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 11:07:14,573 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2019-11-20 11:07:14,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 11:07:14,575 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:14,575 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] [2019-11-20 11:07:14,775 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:14,777 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:14,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:14,778 INFO L82 PathProgramCache]: Analyzing trace with hash -322456133, now seen corresponding path program 1 times [2019-11-20 11:07:14,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:14,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1168378566] [2019-11-20 11:07:14,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 11:07:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 11:07:15,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 11:07:15,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 11:07:15,090 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 11:07:15,092 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 11:07:15,173 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 11:07:15,174 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1168378566] [2019-11-20 11:07:15,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 11:07:15,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-20 11:07:15,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619286967] [2019-11-20 11:07:15,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 11:07:15,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 11:07:15,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 11:07:15,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-20 11:07:15,176 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 9 states. [2019-11-20 11:07:15,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 11:07:15,259 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2019-11-20 11:07:15,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 11:07:15,261 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-20 11:07:15,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 11:07:15,262 INFO L225 Difference]: With dead ends: 48 [2019-11-20 11:07:15,263 INFO L226 Difference]: Without dead ends: 48 [2019-11-20 11:07:15,263 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-11-20 11:07:15,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-20 11:07:15,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 30. [2019-11-20 11:07:15,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 11:07:15,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-20 11:07:15,274 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 24 [2019-11-20 11:07:15,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 11:07:15,275 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-20 11:07:15,275 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 11:07:15,275 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-20 11:07:15,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 11:07:15,277 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 11:07:15,277 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 11:07:15,486 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:15,487 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_16Err0ASSERT_VIOLATIONMEMORY_FREE, free_16Err1ASSERT_VIOLATIONMEMORY_FREE, free_16Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-20 11:07:15,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 11:07:15,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1911274523, now seen corresponding path program 1 times [2019-11-20 11:07:15,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 11:07:15,487 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1893827910] [2019-11-20 11:07:15,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 11:07:15,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:07:15,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 11:07:15,874 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-20 11:07:15,874 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 11:07:16,088 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 11:07:16,104 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-20 11:07:16,115 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-20 11:07:16,116 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-20 11:07:16,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:07:16 BoogieIcfgContainer [2019-11-20 11:07:16,134 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 11:07:16,135 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 11:07:16,135 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 11:07:16,135 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 11:07:16,136 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:07:11" (3/4) ... [2019-11-20 11:07:16,150 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 11:07:16,151 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 11:07:16,153 INFO L168 Benchmark]: Toolchain (without parser) took 7543.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.1 MB). Free memory was 956.3 MB in the beginning and 997.6 MB in the end (delta: -41.2 MB). Peak memory consumption was 176.9 MB. Max. memory is 11.5 GB. [2019-11-20 11:07:16,154 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:07:16,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 821.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -146.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-20 11:07:16,158 INFO L168 Benchmark]: Boogie Preprocessor took 134.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:07:16,159 INFO L168 Benchmark]: RCFGBuilder took 1631.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.1 MB in the end (delta: 111.7 MB). Peak memory consumption was 111.7 MB. Max. memory is 11.5 GB. [2019-11-20 11:07:16,160 INFO L168 Benchmark]: TraceAbstraction took 4933.48 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.3 MB). Free memory was 986.1 MB in the beginning and 997.6 MB in the end (delta: -11.5 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. [2019-11-20 11:07:16,161 INFO L168 Benchmark]: Witness Printer took 15.93 ms. Allocated memory is still 1.2 GB. Free memory is still 997.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 11:07:16,167 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 821.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -146.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 134.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1631.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.1 MB in the end (delta: 111.7 MB). Peak memory consumption was 111.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4933.48 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.3 MB). Free memory was 986.1 MB in the beginning and 997.6 MB in the end (delta: -11.5 MB). Peak memory consumption was 69.8 MB. Max. memory is 11.5 GB. * Witness Printer took 15.93 ms. Allocated memory is still 1.2 GB. Free memory is still 997.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 775]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 775. Possible FailurePath: [L570] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={1108378657:0}] [L776] CALL entry_point() VAL [ldv_global_msg_list={1108378657:0}] [L771] int condition = __VERIFIER_nondet_int(); [L772] CALL, EXPR alloc_unsafe_16(condition) VAL [\old(condition)=0, ldv_global_msg_list={1108378657:0}] [L762] CALL, EXPR ldv_malloc(sizeof(struct A16)) VAL [\old(size)=4, ldv_global_msg_list={1108378657:0}] [L527] COND TRUE __VERIFIER_nondet_int() [L528] return malloc(size); VAL [\old(size)=4, \result={-1039104991:0}, ldv_global_msg_list={1108378657:0}, malloc(size)={-1039104991:0}, size=4] [L762] RET, EXPR ldv_malloc(sizeof(struct A16)) VAL [\old(condition)=0, condition=0, ldv_global_msg_list={1108378657:0}, ldv_malloc(sizeof(struct A16))={-1039104991:0}] [L762] struct A16 *p = (struct A16 *)ldv_malloc(sizeof(struct A16)); [L763] return p; VAL [\old(condition)=0, \result={-1039104991:0}, condition=0, ldv_global_msg_list={1108378657:0}, p={-1039104991:0}] [L772] RET, EXPR alloc_unsafe_16(condition) VAL [alloc_unsafe_16(condition)={-1039104991:0}, condition=0, ldv_global_msg_list={1108378657:0}] [L772] struct A16 *p = alloc_unsafe_16(condition); [L773] CALL free_16(p, condition) VAL [\old(condition)=0, ldv_global_msg_list={1108378657:0}, p={-1039104991:0}] [L766] COND FALSE !(\read(condition)) VAL [\old(condition)=0, condition=0, ldv_global_msg_list={1108378657:0}, p={-1039104991:0}, p={-1039104991:0}] [L773] RET free_16(p, condition) VAL [condition=0, ldv_global_msg_list={1108378657:0}, p={-1039104991:0}] [L776] RET entry_point() VAL [ldv_global_msg_list={1108378657:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 48 procedures, 340 locations, 74 error locations. Result: UNSAFE, OverallTime: 4.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 124 SDtfs, 67 SDslu, 746 SDs, 0 SdLazy, 383 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=106occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 10770 SizeOfPredicates, 13 NumberOfNonLiveVariables, 337 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...