./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 65a59966 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-64bit-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 64bit --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 0.1.24-65a5996 [2019-11-20 19:02:25,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 19:02:25,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 19:02:25,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 19:02:25,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 19:02:25,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 19:02:25,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 19:02:25,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 19:02:25,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 19:02:25,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 19:02:25,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 19:02:25,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 19:02:25,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 19:02:25,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 19:02:25,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 19:02:25,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 19:02:25,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 19:02:25,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 19:02:25,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 19:02:25,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 19:02:25,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 19:02:25,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 19:02:25,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 19:02:25,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 19:02:25,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 19:02:25,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 19:02:25,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 19:02:25,984 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 19:02:25,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 19:02:25,986 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 19:02:25,986 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 19:02:25,987 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 19:02:25,988 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 19:02:25,989 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 19:02:25,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 19:02:25,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 19:02:25,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 19:02:25,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 19:02:25,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 19:02:25,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 19:02:25,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 19:02:25,995 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-20 19:02:26,010 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 19:02:26,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 19:02:26,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 19:02:26,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 19:02:26,012 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 19:02:26,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 19:02:26,013 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 19:02:26,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 19:02:26,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 19:02:26,014 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-20 19:02:26,014 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-20 19:02:26,014 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-20 19:02:26,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 19:02:26,015 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 19:02:26,015 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 19:02:26,015 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 19:02:26,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 19:02:26,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 19:02:26,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 19:02:26,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 19:02:26,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 19:02:26,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 19:02:26,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 19:02:26,018 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 19:02:26,018 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 19:02:26,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 19:02:26,018 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c12c64cb0672f0b7adf7ed2c7ccf016f73bc65a [2019-11-20 19:02:26,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 19:02:26,320 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 19:02:26,324 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 19:02:26,325 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 19:02:26,327 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 19:02:26,328 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2019-11-20 19:02:26,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb1c9a6a/9a24e94cfb594f77a1f6f7511914c543/FLAG730e96ccc [2019-11-20 19:02:26,943 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 19:02:26,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test16_1.i [2019-11-20 19:02:26,960 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb1c9a6a/9a24e94cfb594f77a1f6f7511914c543/FLAG730e96ccc [2019-11-20 19:02:27,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb1c9a6a/9a24e94cfb594f77a1f6f7511914c543 [2019-11-20 19:02:27,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 19:02:27,216 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-20 19:02:27,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 19:02:27,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 19:02:27,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 19:02:27,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:02:27" (1/1) ... [2019-11-20 19:02:27,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e0640ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:27, skipping insertion in model container [2019-11-20 19:02:27,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:02:27" (1/1) ... [2019-11-20 19:02:27,232 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 19:02:27,290 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 19:02:27,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 19:02:27,839 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 19:02:27,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 19:02:28,040 INFO L192 MainTranslator]: Completed translation [2019-11-20 19:02:28,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:28 WrapperNode [2019-11-20 19:02:28,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 19:02:28,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 19:02:28,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 19:02:28,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 19:02:28,057 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:28" (1/1) ... [2019-11-20 19:02:28,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:28" (1/1) ... [2019-11-20 19:02:28,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:28" (1/1) ... [2019-11-20 19:02:28,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:28" (1/1) ... [2019-11-20 19:02:28,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:28" (1/1) ... [2019-11-20 19:02:28,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:28" (1/1) ... [2019-11-20 19:02:28,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:28" (1/1) ... [2019-11-20 19:02:28,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 19:02:28,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 19:02:28,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 19:02:28,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 19:02:28,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:28" (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 19:02:28,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-20 19:02:28,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 19:02:28,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 19:02:28,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-20 19:02:28,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-20 19:02:28,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-20 19:02:28,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-20 19:02:28,212 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-20 19:02:28,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-20 19:02:28,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-20 19:02:28,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-20 19:02:28,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-20 19:02:28,213 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-20 19:02:28,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-20 19:02:28,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-20 19:02:28,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-20 19:02:28,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-20 19:02:28,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-20 19:02:28,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-20 19:02:28,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-20 19:02:28,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-20 19:02:28,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-20 19:02:28,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-20 19:02:28,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-20 19:02:28,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-20 19:02:28,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-20 19:02:28,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-20 19:02:28,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-20 19:02:28,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-20 19:02:28,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-20 19:02:28,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-20 19:02:28,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-20 19:02:28,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-20 19:02:28,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-20 19:02:28,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-20 19:02:28,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-20 19:02:28,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-20 19:02:28,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-20 19:02:28,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-20 19:02:28,219 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 19:02:28,219 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 19:02:28,219 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_unsafe_16 [2019-11-20 19:02:28,220 INFO L138 BoogieDeclarations]: Found implementation of procedure free_16 [2019-11-20 19:02:28,220 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-20 19:02:28,220 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-20 19:02:28,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-20 19:02:28,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-20 19:02:28,220 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-20 19:02:28,220 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-20 19:02:28,221 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-20 19:02:28,221 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-20 19:02:28,221 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-20 19:02:28,221 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-20 19:02:28,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-20 19:02:28,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-20 19:02:28,221 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-20 19:02:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-20 19:02:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-20 19:02:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-20 19:02:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-20 19:02:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-20 19:02:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-20 19:02:28,222 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-20 19:02:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-20 19:02:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-20 19:02:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-20 19:02:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-20 19:02:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-20 19:02:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-20 19:02:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-20 19:02:28,223 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-20 19:02:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-20 19:02:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-20 19:02:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-20 19:02:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-20 19:02:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-20 19:02:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-20 19:02:28,224 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-20 19:02:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-20 19:02:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-20 19:02:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-20 19:02:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-20 19:02:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-20 19:02:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-20 19:02:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-20 19:02:28,225 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-20 19:02:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-20 19:02:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-20 19:02:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-20 19:02:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-20 19:02:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-20 19:02:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-20 19:02:28,226 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-20 19:02:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-20 19:02:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-20 19:02:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-20 19:02:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-20 19:02:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-20 19:02:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-20 19:02:28,227 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-20 19:02:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-20 19:02:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-20 19:02:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-20 19:02:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-20 19:02:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-20 19:02:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-20 19:02:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-20 19:02:28,228 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-20 19:02:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-20 19:02:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-20 19:02:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-20 19:02:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-20 19:02:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-20 19:02:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-20 19:02:28,229 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-20 19:02:28,230 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-20 19:02:28,230 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-20 19:02:28,230 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-20 19:02:28,230 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-20 19:02:28,230 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-20 19:02:28,230 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-20 19:02:28,230 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-20 19:02:28,230 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-20 19:02:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-20 19:02:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-20 19:02:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-20 19:02:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-20 19:02:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-20 19:02:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-20 19:02:28,231 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-20 19:02:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-20 19:02:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-20 19:02:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-20 19:02:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-20 19:02:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-20 19:02:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-20 19:02:28,232 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-20 19:02:28,233 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-20 19:02:28,233 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-20 19:02:28,233 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-20 19:02:28,233 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-20 19:02:28,233 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-20 19:02:28,233 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-20 19:02:28,233 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-20 19:02:28,234 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-20 19:02:28,234 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-20 19:02:28,234 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-20 19:02:28,234 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-20 19:02:28,234 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-20 19:02:28,234 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-20 19:02:28,234 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-20 19:02:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-20 19:02:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-20 19:02:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-20 19:02:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-20 19:02:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-20 19:02:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-20 19:02:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-20 19:02:28,235 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-20 19:02:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-20 19:02:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-20 19:02:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-20 19:02:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-20 19:02:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 19:02:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-20 19:02:28,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-20 19:02:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-20 19:02:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-20 19:02:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-20 19:02:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-20 19:02:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-20 19:02:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-20 19:02:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-20 19:02:28,237 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-20 19:02:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-20 19:02:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-20 19:02:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-20 19:02:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-20 19:02:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 19:02:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-20 19:02:28,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-20 19:02:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-20 19:02:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-20 19:02:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-20 19:02:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 19:02:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 19:02:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-20 19:02:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-20 19:02:28,239 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-20 19:02:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-20 19:02:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-20 19:02:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-20 19:02:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-20 19:02:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-20 19:02:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-20 19:02:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-20 19:02:28,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-20 19:02:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-20 19:02:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-20 19:02:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-20 19:02:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-20 19:02:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 19:02:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 19:02:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_unsafe_16 [2019-11-20 19:02:28,241 INFO L130 BoogieDeclarations]: Found specification of procedure free_16 [2019-11-20 19:02:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-20 19:02:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-20 19:02:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-20 19:02:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 19:02:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-20 19:02:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 19:02:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-20 19:02:28,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-20 19:02:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-20 19:02:28,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-20 19:02:28,884 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 19:02:29,307 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-20 19:02:29,678 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 19:02:29,678 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-20 19:02:29,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:02:29 BoogieIcfgContainer [2019-11-20 19:02:29,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 19:02:29,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 19:02:29,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 19:02:29,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 19:02:29,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:02:27" (1/3) ... [2019-11-20 19:02:29,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c047975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:02:29, skipping insertion in model container [2019-11-20 19:02:29,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:02:28" (2/3) ... [2019-11-20 19:02:29,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c047975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:02:29, skipping insertion in model container [2019-11-20 19:02:29,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:02:29" (3/3) ... [2019-11-20 19:02:29,688 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test16_1.i [2019-11-20 19:02:29,700 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 19:02:29,709 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-20 19:02:29,721 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-20 19:02:29,746 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 19:02:29,746 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-20 19:02:29,746 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 19:02:29,746 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 19:02:29,747 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 19:02:29,747 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 19:02:29,747 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 19:02:29,747 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 19:02:29,771 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states. [2019-11-20 19:02:29,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 19:02:29,784 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:29,785 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 19:02:29,786 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 19:02:29,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:29,793 INFO L82 PathProgramCache]: Analyzing trace with hash 370919064, now seen corresponding path program 1 times [2019-11-20 19:02:29,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:29,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [520898592] [2019-11-20 19:02:29,808 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 19:02:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:02:30,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 19:02:30,142 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:02:30,277 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 19:02:30,280 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:02:30,420 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 19:02:30,427 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [520898592] [2019-11-20 19:02:30,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:02:30,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-20 19:02:30,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957672729] [2019-11-20 19:02:30,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 19:02:30,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:02:30,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 19:02:30,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-20 19:02:30,453 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 9 states. [2019-11-20 19:02:30,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:02:30,550 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2019-11-20 19:02:30,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 19:02:30,554 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2019-11-20 19:02:30,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:02:30,567 INFO L225 Difference]: With dead ends: 35 [2019-11-20 19:02:30,567 INFO L226 Difference]: Without dead ends: 32 [2019-11-20 19:02:30,570 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 19:02:30,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-20 19:02:30,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-11-20 19:02:30,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-20 19:02:30,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2019-11-20 19:02:30,631 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 22 [2019-11-20 19:02:30,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:02:30,632 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2019-11-20 19:02:30,632 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 19:02:30,632 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2019-11-20 19:02:30,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 19:02:30,633 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:30,633 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 19:02:30,844 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:02:30,846 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 19:02:30,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:30,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1386410531, now seen corresponding path program 1 times [2019-11-20 19:02:30,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:30,847 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1941098332] [2019-11-20 19:02:30,847 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 19:02:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:02:31,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 19:02:31,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:02:31,356 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 19:02:31,357 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:02:31,648 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 19:02:31,648 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1941098332] [2019-11-20 19:02:31,648 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:02:31,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 8] imperfect sequences [] total 16 [2019-11-20 19:02:31,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976897467] [2019-11-20 19:02:31,651 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-20 19:02:31,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:02:31,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-20 19:02:31,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-11-20 19:02:31,652 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 17 states. [2019-11-20 19:02:32,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:02:32,048 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2019-11-20 19:02:32,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 19:02:32,049 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 23 [2019-11-20 19:02:32,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:02:32,050 INFO L225 Difference]: With dead ends: 31 [2019-11-20 19:02:32,050 INFO L226 Difference]: Without dead ends: 31 [2019-11-20 19:02:32,051 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-11-20 19:02:32,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-11-20 19:02:32,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-11-20 19:02:32,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-20 19:02:32,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-20 19:02:32,057 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 23 [2019-11-20 19:02:32,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:02:32,057 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-20 19:02:32,057 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-20 19:02:32,057 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-20 19:02:32,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 19:02:32,058 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:32,058 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 19:02:32,268 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:02:32,269 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 19:02:32,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:32,270 INFO L82 PathProgramCache]: Analyzing trace with hash -29053126, now seen corresponding path program 1 times [2019-11-20 19:02:32,271 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:32,272 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1042844165] [2019-11-20 19:02:32,272 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 19:02:32,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:02:32,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-20 19:02:32,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:02:32,585 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 19:02:32,585 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-20 19:02:32,590 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-20 19:02:32,591 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-20 19:02:32,591 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-20 19:02:32,681 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 19:02:32,681 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:02:32,836 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 19:02:32,836 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1042844165] [2019-11-20 19:02:32,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:02:32,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-20 19:02:32,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308496630] [2019-11-20 19:02:32,838 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 19:02:32,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:02:32,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 19:02:32,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-20 19:02:32,839 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 9 states. [2019-11-20 19:02:33,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:02:33,015 INFO L93 Difference]: Finished difference Result 47 states and 50 transitions. [2019-11-20 19:02:33,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 19:02:33,016 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-20 19:02:33,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:02:33,020 INFO L225 Difference]: With dead ends: 47 [2019-11-20 19:02:33,020 INFO L226 Difference]: Without dead ends: 47 [2019-11-20 19:02:33,021 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 1 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 19:02:33,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-20 19:02:33,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2019-11-20 19:02:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2019-11-20 19:02:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 48 transitions. [2019-11-20 19:02:33,043 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 48 transitions. Word has length 24 [2019-11-20 19:02:33,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:02:33,043 INFO L462 AbstractCegarLoop]: Abstraction has 45 states and 48 transitions. [2019-11-20 19:02:33,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 19:02:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 48 transitions. [2019-11-20 19:02:33,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 19:02:33,046 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:33,046 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 19:02:33,257 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:02:33,258 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 19:02:33,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:33,259 INFO L82 PathProgramCache]: Analyzing trace with hash -322456133, now seen corresponding path program 1 times [2019-11-20 19:02:33,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:33,260 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [187168028] [2019-11-20 19:02:33,260 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 19:02:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 19:02:33,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 19:02:33,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 19:02:33,559 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 19:02:33,561 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 19:02:33,634 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 19:02:33,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [187168028] [2019-11-20 19:02:33,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 19:02:33,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-20 19:02:33,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170903596] [2019-11-20 19:02:33,637 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 19:02:33,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 19:02:33,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 19:02:33,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-20 19:02:33,637 INFO L87 Difference]: Start difference. First operand 45 states and 48 transitions. Second operand 9 states. [2019-11-20 19:02:33,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 19:02:33,720 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2019-11-20 19:02:33,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 19:02:33,721 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-20 19:02:33,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 19:02:33,722 INFO L225 Difference]: With dead ends: 48 [2019-11-20 19:02:33,722 INFO L226 Difference]: Without dead ends: 48 [2019-11-20 19:02:33,723 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 19:02:33,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-20 19:02:33,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 30. [2019-11-20 19:02:33,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-20 19:02:33,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-20 19:02:33,728 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 24 [2019-11-20 19:02:33,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 19:02:33,728 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-20 19:02:33,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 19:02:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-20 19:02:33,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-20 19:02:33,729 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 19:02:33,729 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 19:02:33,929 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:02:33,930 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 19:02:33,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 19:02:33,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1911274523, now seen corresponding path program 1 times [2019-11-20 19:02:33,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 19:02:33,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1990298390] [2019-11-20 19:02:33,932 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 19:02:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 19:02:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 19:02:34,324 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-20 19:02:34,324 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 19:02:34,528 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-20 19:02:34,545 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2019-11-20 19:02:34,555 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 19:02:34,555 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 19:02:34,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:02:34 BoogieIcfgContainer [2019-11-20 19:02:34,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 19:02:34,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 19:02:34,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 19:02:34,569 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 19:02:34,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:02:29" (3/4) ... [2019-11-20 19:02:34,574 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 19:02:34,574 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 19:02:34,576 INFO L168 Benchmark]: Toolchain (without parser) took 7360.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.8 MB). Free memory was 951.0 MB in the beginning and 991.0 MB in the end (delta: -40.0 MB). Peak memory consumption was 171.8 MB. Max. memory is 11.5 GB. [2019-11-20 19:02:34,577 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 19:02:34,577 INFO L168 Benchmark]: CACSL2BoogieTranslator took 824.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -146.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-20 19:02:34,578 INFO L168 Benchmark]: Boogie Preprocessor took 105.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-20 19:02:34,579 INFO L168 Benchmark]: RCFGBuilder took 1533.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.9 MB in the end (delta: 112.3 MB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. [2019-11-20 19:02:34,580 INFO L168 Benchmark]: TraceAbstraction took 4886.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 82.3 MB). Free memory was 972.9 MB in the beginning and 991.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. [2019-11-20 19:02:34,581 INFO L168 Benchmark]: Witness Printer took 5.59 ms. Allocated memory is still 1.2 GB. Free memory is still 991.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 19:02:34,584 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 824.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -146.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 105.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1533.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.9 MB in the end (delta: 112.3 MB). Peak memory consumption was 112.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4886.82 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 82.3 MB). Free memory was 972.9 MB in the beginning and 991.0 MB in the end (delta: -18.1 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.59 ms. Allocated memory is still 1.2 GB. Free memory is still 991.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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: 0.8s, 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...