./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 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_test10-2.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 d4308bd7904aec4bec637498669b187d310fac2d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 14:09:56,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 14:09:56,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 14:09:56,844 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 14:09:56,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 14:09:56,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 14:09:56,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 14:09:56,850 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 14:09:56,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 14:09:56,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 14:09:56,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 14:09:56,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 14:09:56,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 14:09:56,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 14:09:56,871 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 14:09:56,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 14:09:56,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 14:09:56,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 14:09:56,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 14:09:56,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 14:09:56,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 14:09:56,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 14:09:56,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 14:09:56,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 14:09:56,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 14:09:56,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 14:09:56,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 14:09:56,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 14:09:56,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 14:09:56,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 14:09:56,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 14:09:56,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 14:09:56,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 14:09:56,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 14:09:56,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 14:09:56,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 14:09:56,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 14:09:56,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 14:09:56,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 14:09:56,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 14:09:56,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 14:09:56,899 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 14:09:56,914 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 14:09:56,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 14:09:56,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 14:09:56,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 14:09:56,917 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 14:09:56,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 14:09:56,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 14:09:56,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 14:09:56,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 14:09:56,918 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 14:09:56,918 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 14:09:56,919 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 14:09:56,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 14:09:56,919 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 14:09:56,919 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 14:09:56,920 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 14:09:56,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 14:09:56,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 14:09:56,921 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 14:09:56,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 14:09:56,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 14:09:56,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 14:09:56,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 14:09:56,922 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 14:09:56,922 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 14:09:56,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 14:09:56,923 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 -> d4308bd7904aec4bec637498669b187d310fac2d [2019-11-21 14:09:57,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 14:09:57,232 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 14:09:57,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 14:09:57,237 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 14:09:57,238 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 14:09:57,239 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2019-11-21 14:09:57,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61549eba7/bc8a50c0c94348859c5e33d6dc0fdbf2/FLAGa20733f50 [2019-11-21 14:09:57,858 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 14:09:57,859 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test10-2.i [2019-11-21 14:09:57,874 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61549eba7/bc8a50c0c94348859c5e33d6dc0fdbf2/FLAGa20733f50 [2019-11-21 14:09:58,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61549eba7/bc8a50c0c94348859c5e33d6dc0fdbf2 [2019-11-21 14:09:58,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 14:09:58,143 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 14:09:58,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 14:09:58,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 14:09:58,148 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 14:09:58,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:09:58" (1/1) ... [2019-11-21 14:09:58,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d183b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:58, skipping insertion in model container [2019-11-21 14:09:58,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:09:58" (1/1) ... [2019-11-21 14:09:58,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 14:09:58,221 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 14:09:58,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 14:09:58,784 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 14:09:58,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 14:09:58,965 INFO L205 MainTranslator]: Completed translation [2019-11-21 14:09:58,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:58 WrapperNode [2019-11-21 14:09:58,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 14:09:58,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 14:09:58,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 14:09:58,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 14:09:58,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:58" (1/1) ... [2019-11-21 14:09:58,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:58" (1/1) ... [2019-11-21 14:09:59,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:58" (1/1) ... [2019-11-21 14:09:59,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:58" (1/1) ... [2019-11-21 14:09:59,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:58" (1/1) ... [2019-11-21 14:09:59,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:58" (1/1) ... [2019-11-21 14:09:59,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:58" (1/1) ... [2019-11-21 14:09:59,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 14:09:59,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 14:09:59,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 14:09:59,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 14:09:59,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:58" (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 [2019-11-21 14:09:59,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 14:09:59,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 14:09:59,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 14:09:59,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 14:09:59,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 14:09:59,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 14:09:59,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 14:09:59,156 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 14:09:59,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 14:09:59,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 14:09:59,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 14:09:59,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 14:09:59,157 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 14:09:59,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 14:09:59,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 14:09:59,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 14:09:59,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 14:09:59,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 14:09:59,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 14:09:59,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 14:09:59,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 14:09:59,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 14:09:59,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 14:09:59,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 14:09:59,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 14:09:59,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 14:09:59,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 14:09:59,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 14:09:59,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 14:09:59,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 14:09:59,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 14:09:59,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 14:09:59,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 14:09:59,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 14:09:59,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 14:09:59,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 14:09:59,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 14:09:59,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 14:09:59,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 14:09:59,162 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 14:09:59,162 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 14:09:59,162 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_10 [2019-11-21 14:09:59,162 INFO L138 BoogieDeclarations]: Found implementation of procedure free_10 [2019-11-21 14:09:59,162 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 14:09:59,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 14:09:59,163 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 14:09:59,163 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 14:09:59,163 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 14:09:59,163 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 14:09:59,163 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 14:09:59,164 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 14:09:59,164 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 14:09:59,164 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 14:09:59,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 14:09:59,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 14:09:59,164 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 14:09:59,165 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 14:09:59,165 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 14:09:59,165 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 14:09:59,165 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 14:09:59,165 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 14:09:59,165 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 14:09:59,166 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 14:09:59,166 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 14:09:59,166 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 14:09:59,166 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 14:09:59,166 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 14:09:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 14:09:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 14:09:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 14:09:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 14:09:59,167 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 14:09:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 14:09:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 14:09:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 14:09:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 14:09:59,168 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 14:09:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 14:09:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 14:09:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 14:09:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 14:09:59,169 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 14:09:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 14:09:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 14:09:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 14:09:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 14:09:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 14:09:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 14:09:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 14:09:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 14:09:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 14:09:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 14:09:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 14:09:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 14:09:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 14:09:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 14:09:59,172 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 14:09:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 14:09:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 14:09:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 14:09:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 14:09:59,173 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 14:09:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 14:09:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 14:09:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 14:09:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 14:09:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 14:09:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 14:09:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 14:09:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 14:09:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 14:09:59,175 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 14:09:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 14:09:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 14:09:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 14:09:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 14:09:59,176 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 14:09:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 14:09:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 14:09:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 14:09:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 14:09:59,177 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 14:09:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 14:09:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 14:09:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 14:09:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 14:09:59,178 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 14:09:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 14:09:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 14:09:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 14:09:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 14:09:59,179 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 14:09:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 14:09:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 14:09:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 14:09:59,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 14:09:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 14:09:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 14:09:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 14:09:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 14:09:59,181 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 14:09:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 14:09:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 14:09:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 14:09:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 14:09:59,182 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 14:09:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 14:09:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 14:09:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 14:09:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 14:09:59,183 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 14:09:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 14:09:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 14:09:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 14:09:59,184 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 14:09:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 14:09:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 14:09:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 14:09:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 14:09:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 14:09:59,185 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 14:09:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 14:09:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 14:09:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 14:09:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 14:09:59,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 14:09:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 14:09:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 14:09:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 14:09:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 14:09:59,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 14:09:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 14:09:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 14:09:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 14:09:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 14:09:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 14:09:59,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 14:09:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 14:09:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 14:09:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 14:09:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 14:09:59,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 14:09:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 14:09:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 14:09:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 14:09:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 14:09:59,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 14:09:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 14:09:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 14:09:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 14:09:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 14:09:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 14:09:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 14:09:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 14:09:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 14:09:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 14:09:59,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 14:09:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 14:09:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 14:09:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 14:09:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 14:09:59,193 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 14:09:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 14:09:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_10 [2019-11-21 14:09:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure free_10 [2019-11-21 14:09:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 14:09:59,194 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 14:09:59,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 14:09:59,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 14:09:59,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 14:09:59,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 14:09:59,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 14:09:59,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 14:09:59,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 14:09:59,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 14:09:59,888 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 14:10:00,323 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 14:10:00,878 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 14:10:00,881 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 14:10:00,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:10:00 BoogieIcfgContainer [2019-11-21 14:10:00,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 14:10:00,886 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 14:10:00,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 14:10:00,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 14:10:00,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:09:58" (1/3) ... [2019-11-21 14:10:00,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430b817a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:10:00, skipping insertion in model container [2019-11-21 14:10:00,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:09:58" (2/3) ... [2019-11-21 14:10:00,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@430b817a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:10:00, skipping insertion in model container [2019-11-21 14:10:00,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:10:00" (3/3) ... [2019-11-21 14:10:00,896 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test10-2.i [2019-11-21 14:10:00,907 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 14:10:00,918 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 113 error locations. [2019-11-21 14:10:00,930 INFO L249 AbstractCegarLoop]: Starting to check reachability of 113 error locations. [2019-11-21 14:10:00,953 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 14:10:00,953 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 14:10:00,954 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 14:10:00,954 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 14:10:00,954 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 14:10:00,954 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 14:10:00,955 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 14:10:00,955 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 14:10:00,988 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2019-11-21 14:10:00,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 14:10:00,997 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:10:00,998 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:10:00,999 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:10:01,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:10:01,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1033291871, now seen corresponding path program 1 times [2019-11-21 14:10:01,017 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:10:01,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1613108001] [2019-11-21 14:10:01,018 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 [2019-11-21 14:10:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:10:01,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:10:01,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:10:01,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:10:01,387 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:10:01,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:10:01,495 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1613108001] [2019-11-21 14:10:01,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:10:01,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 14:10:01,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981113380] [2019-11-21 14:10:01,506 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:10:01,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:10:01,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:10:01,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:10:01,526 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 5 states. [2019-11-21 14:10:01,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:10:01,796 INFO L93 Difference]: Finished difference Result 163 states and 181 transitions. [2019-11-21 14:10:01,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:10:01,799 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 14:10:01,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:10:01,812 INFO L225 Difference]: With dead ends: 163 [2019-11-21 14:10:01,812 INFO L226 Difference]: Without dead ends: 160 [2019-11-21 14:10:01,814 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:10:01,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-11-21 14:10:01,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 106. [2019-11-21 14:10:01,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-11-21 14:10:01,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 115 transitions. [2019-11-21 14:10:01,871 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 115 transitions. Word has length 16 [2019-11-21 14:10:01,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:10:01,872 INFO L462 AbstractCegarLoop]: Abstraction has 106 states and 115 transitions. [2019-11-21 14:10:01,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:10:01,872 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 115 transitions. [2019-11-21 14:10:01,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 14:10:01,874 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:10:01,875 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:10:02,078 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:10:02,079 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:10:02,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:10:02,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1518865090, now seen corresponding path program 1 times [2019-11-21 14:10:02,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:10:02,081 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1352756159] [2019-11-21 14:10:02,081 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 [2019-11-21 14:10:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:10:02,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 14:10:02,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:10:02,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:10:02,341 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:10:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:10:02,409 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1352756159] [2019-11-21 14:10:02,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:10:02,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 14:10:02,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888614466] [2019-11-21 14:10:02,411 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 14:10:02,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:10:02,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 14:10:02,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 14:10:02,413 INFO L87 Difference]: Start difference. First operand 106 states and 115 transitions. Second operand 3 states. [2019-11-21 14:10:02,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:10:02,683 INFO L93 Difference]: Finished difference Result 156 states and 173 transitions. [2019-11-21 14:10:02,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 14:10:02,684 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-21 14:10:02,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:10:02,687 INFO L225 Difference]: With dead ends: 156 [2019-11-21 14:10:02,690 INFO L226 Difference]: Without dead ends: 153 [2019-11-21 14:10:02,691 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 14:10:02,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-21 14:10:02,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 102. [2019-11-21 14:10:02,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-21 14:10:02,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2019-11-21 14:10:02,708 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 16 [2019-11-21 14:10:02,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:10:02,709 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2019-11-21 14:10:02,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 14:10:02,709 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2019-11-21 14:10:02,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-21 14:10:02,710 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:10:02,710 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:10:02,913 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:10:02,914 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:10:02,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:10:02,914 INFO L82 PathProgramCache]: Analyzing trace with hash -914584257, now seen corresponding path program 1 times [2019-11-21 14:10:02,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:10:02,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1608866013] [2019-11-21 14:10:02,916 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 [2019-11-21 14:10:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:10:03,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 14:10:03,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:10:03,285 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 [2019-11-21 14:10:03,285 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:10:03,289 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:10:03,289 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:10:03,289 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 14:10:03,393 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:10:03,393 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-21 14:10:03,395 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:10:03,421 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 14:10:03,423 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 14:10:03,423 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-21 14:10:03,448 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:10:03,448 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:10:05,835 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:10:05,835 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1608866013] [2019-11-21 14:10:05,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:10:05,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 14:10:05,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970812710] [2019-11-21 14:10:05,836 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 14:10:05,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:10:05,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 14:10:05,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2019-11-21 14:10:05,838 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand 13 states. [2019-11-21 14:10:50,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:10:50,669 INFO L93 Difference]: Finished difference Result 216 states and 249 transitions. [2019-11-21 14:10:50,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 14:10:50,669 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2019-11-21 14:10:50,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:10:50,673 INFO L225 Difference]: With dead ends: 216 [2019-11-21 14:10:50,674 INFO L226 Difference]: Without dead ends: 216 [2019-11-21 14:10:50,674 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-11-21 14:10:50,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2019-11-21 14:10:50,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 119. [2019-11-21 14:10:50,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-21 14:10:50,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 142 transitions. [2019-11-21 14:10:50,691 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 142 transitions. Word has length 19 [2019-11-21 14:10:50,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:10:50,691 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 142 transitions. [2019-11-21 14:10:50,691 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 14:10:50,691 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 142 transitions. [2019-11-21 14:10:50,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-21 14:10:50,692 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:10:50,692 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:10:50,896 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:10:50,897 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:10:50,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:10:50,898 INFO L82 PathProgramCache]: Analyzing trace with hash -914584256, now seen corresponding path program 1 times [2019-11-21 14:10:50,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:10:50,899 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1619033158] [2019-11-21 14:10:50,900 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 [2019-11-21 14:10:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:10:51,180 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-21 14:10:51,182 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:10:51,198 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 [2019-11-21 14:10:51,199 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:10:51,212 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:10:51,217 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 [2019-11-21 14:10:51,217 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:10:51,227 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:10:51,228 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:10:51,228 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 14:10:53,377 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 14:10:53,379 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-11-21 14:10:53,380 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:10:53,394 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:10:53,411 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:10:53,411 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-21 14:10:53,412 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:10:53,430 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:10:53,431 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:10:53,432 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:11 [2019-11-21 14:10:53,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:10:53,472 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:10:53,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:10:55,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:10:55,775 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:10:55,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:10:55,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:10:55,787 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:10:55,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:10:55,791 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:10:55,795 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:10:59,021 WARN L192 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-21 14:10:59,030 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:11:01,845 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 14:11:01,856 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 14:11:01,857 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:11:01,870 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:11:01,873 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 14:11:01,873 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:11:01,886 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:11:01,887 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:11:01,887 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:25, output treesize:8 [2019-11-21 14:11:01,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:11:01,972 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1619033158] [2019-11-21 14:11:01,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:11:01,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2019-11-21 14:11:01,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195964029] [2019-11-21 14:11:01,973 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-21 14:11:01,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:11:01,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-21 14:11:01,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=199, Unknown=4, NotChecked=0, Total=240 [2019-11-21 14:11:01,975 INFO L87 Difference]: Start difference. First operand 119 states and 142 transitions. Second operand 16 states. [2019-11-21 14:11:19,454 WARN L192 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-11-21 14:11:26,414 WARN L192 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-11-21 14:11:41,000 WARN L192 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 52 DAG size of output: 26 [2019-11-21 14:12:04,789 WARN L192 SmtUtils]: Spent 6.13 s on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-21 14:12:34,182 WARN L192 SmtUtils]: Spent 6.22 s on a formula simplification. DAG size of input: 60 DAG size of output: 33 [2019-11-21 14:12:52,139 WARN L192 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-11-21 14:13:02,398 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2019-11-21 14:13:04,589 WARN L192 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 43 DAG size of output: 16 [2019-11-21 14:13:44,244 WARN L192 SmtUtils]: Spent 4.13 s on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-11-21 14:14:51,886 WARN L192 SmtUtils]: Spent 4.90 s on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2019-11-21 14:16:59,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:16:59,236 INFO L93 Difference]: Finished difference Result 290 states and 332 transitions. [2019-11-21 14:16:59,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-21 14:16:59,237 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 19 [2019-11-21 14:16:59,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:16:59,241 INFO L225 Difference]: With dead ends: 290 [2019-11-21 14:16:59,241 INFO L226 Difference]: Without dead ends: 290 [2019-11-21 14:16:59,242 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 21 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 70.5s TimeCoverageRelationStatistics Valid=168, Invalid=808, Unknown=16, NotChecked=0, Total=992 [2019-11-21 14:16:59,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2019-11-21 14:16:59,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 128. [2019-11-21 14:16:59,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2019-11-21 14:16:59,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 160 transitions. [2019-11-21 14:16:59,269 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 160 transitions. Word has length 19 [2019-11-21 14:16:59,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:16:59,269 INFO L462 AbstractCegarLoop]: Abstraction has 128 states and 160 transitions. [2019-11-21 14:16:59,269 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-21 14:16:59,269 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 160 transitions. [2019-11-21 14:16:59,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-21 14:16:59,270 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:16:59,273 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:16:59,473 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:16:59,475 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:16:59,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:16:59,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1583431680, now seen corresponding path program 1 times [2019-11-21 14:16:59,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:16:59,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [355129177] [2019-11-21 14:16:59,477 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 [2019-11-21 14:16:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:16:59,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 14:16:59,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:16:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:16:59,815 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:16:59,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:16:59,860 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [355129177] [2019-11-21 14:16:59,861 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 14:16:59,861 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-11-21 14:16:59,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113483757] [2019-11-21 14:16:59,862 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:16:59,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:16:59,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:16:59,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:16:59,862 INFO L87 Difference]: Start difference. First operand 128 states and 160 transitions. Second operand 5 states. [2019-11-21 14:16:59,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:16:59,931 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2019-11-21 14:16:59,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:16:59,932 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-11-21 14:16:59,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:16:59,933 INFO L225 Difference]: With dead ends: 99 [2019-11-21 14:16:59,934 INFO L226 Difference]: Without dead ends: 97 [2019-11-21 14:16:59,934 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:16:59,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-21 14:16:59,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2019-11-21 14:16:59,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-21 14:16:59,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2019-11-21 14:16:59,949 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 19 [2019-11-21 14:16:59,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:16:59,950 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2019-11-21 14:16:59,950 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:16:59,950 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2019-11-21 14:16:59,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 14:16:59,951 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:16:59,951 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:17:00,158 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:17:00,159 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:17:00,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:17:00,160 INFO L82 PathProgramCache]: Analyzing trace with hash -565608548, now seen corresponding path program 1 times [2019-11-21 14:17:00,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:17:00,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1912854610] [2019-11-21 14:17:00,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:17:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:17:00,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 14:17:00,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:17:00,483 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-11-21 14:17:00,483 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:00,490 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:00,490 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:17:00,491 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:8 [2019-11-21 14:17:00,503 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2019-11-21 14:17:00,504 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:00,507 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:00,507 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:17:00,507 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:16, output treesize:4 [2019-11-21 14:17:00,515 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:17:00,515 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:17:00,549 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:17:00,550 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1912854610] [2019-11-21 14:17:00,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:17:00,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-21 14:17:00,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864913131] [2019-11-21 14:17:00,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 14:17:00,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:17:00,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 14:17:00,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-21 14:17:00,552 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand 6 states. [2019-11-21 14:17:00,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:17:00,724 INFO L93 Difference]: Finished difference Result 106 states and 116 transitions. [2019-11-21 14:17:00,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 14:17:00,725 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-21 14:17:00,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:17:00,726 INFO L225 Difference]: With dead ends: 106 [2019-11-21 14:17:00,726 INFO L226 Difference]: Without dead ends: 106 [2019-11-21 14:17:00,727 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-21 14:17:00,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-11-21 14:17:00,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 101. [2019-11-21 14:17:00,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-21 14:17:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 109 transitions. [2019-11-21 14:17:00,734 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 109 transitions. Word has length 24 [2019-11-21 14:17:00,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:17:00,734 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 109 transitions. [2019-11-21 14:17:00,734 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 14:17:00,734 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2019-11-21 14:17:00,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 14:17:00,735 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:17:00,736 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:17:00,939 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:17:00,940 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:17:00,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:17:00,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1921904285, now seen corresponding path program 1 times [2019-11-21 14:17:00,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:17:00,941 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [825472754] [2019-11-21 14:17:00,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:17:01,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:17:01,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 14:17:01,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:17:01,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:17:01,265 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:17:01,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:17:01,346 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [825472754] [2019-11-21 14:17:01,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:17:01,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-21 14:17:01,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827423753] [2019-11-21 14:17:01,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 14:17:01,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:17:01,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 14:17:01,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 14:17:01,347 INFO L87 Difference]: Start difference. First operand 101 states and 109 transitions. Second operand 9 states. [2019-11-21 14:17:01,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:17:01,587 INFO L93 Difference]: Finished difference Result 100 states and 107 transitions. [2019-11-21 14:17:01,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 14:17:01,587 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-21 14:17:01,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:17:01,589 INFO L225 Difference]: With dead ends: 100 [2019-11-21 14:17:01,589 INFO L226 Difference]: Without dead ends: 100 [2019-11-21 14:17:01,589 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 14:17:01,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-11-21 14:17:01,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-11-21 14:17:01,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-11-21 14:17:01,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 107 transitions. [2019-11-21 14:17:01,595 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 107 transitions. Word has length 24 [2019-11-21 14:17:01,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:17:01,595 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 107 transitions. [2019-11-21 14:17:01,595 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 14:17:01,596 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 107 transitions. [2019-11-21 14:17:01,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-21 14:17:01,597 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:17:01,597 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:17:01,807 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:17:01,808 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:17:01,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:17:01,809 INFO L82 PathProgramCache]: Analyzing trace with hash 2014259398, now seen corresponding path program 1 times [2019-11-21 14:17:01,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:17:01,810 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [402136270] [2019-11-21 14:17:01,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:17:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:17:02,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-21 14:17:02,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:17:02,108 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 [2019-11-21 14:17:02,108 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:02,110 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:02,111 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:17:02,111 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 14:17:02,127 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-21 14:17:02,128 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:02,133 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:02,134 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:17:02,134 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:11 [2019-11-21 14:17:02,180 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2019-11-21 14:17:02,182 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:02,187 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:02,187 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 14:17:02,188 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:26, output treesize:15 [2019-11-21 14:17:02,266 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:02,267 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 14:17:02,268 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:02,288 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 14:17:02,289 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 14:17:02,289 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 14:17:02,313 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:17:02,313 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:17:06,762 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:17:06,763 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [402136270] [2019-11-21 14:17:06,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:17:06,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-11-21 14:17:06,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629247504] [2019-11-21 14:17:06,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-11-21 14:17:06,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:17:06,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-11-21 14:17:06,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=225, Unknown=1, NotChecked=0, Total=272 [2019-11-21 14:17:06,764 INFO L87 Difference]: Start difference. First operand 100 states and 107 transitions. Second operand 17 states. [2019-11-21 14:17:52,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:17:52,138 INFO L93 Difference]: Finished difference Result 145 states and 162 transitions. [2019-11-21 14:17:52,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-21 14:17:52,138 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 29 [2019-11-21 14:17:52,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:17:52,141 INFO L225 Difference]: With dead ends: 145 [2019-11-21 14:17:52,141 INFO L226 Difference]: Without dead ends: 145 [2019-11-21 14:17:52,141 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=105, Invalid=446, Unknown=1, NotChecked=0, Total=552 [2019-11-21 14:17:52,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2019-11-21 14:17:52,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 103. [2019-11-21 14:17:52,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-21 14:17:52,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 113 transitions. [2019-11-21 14:17:52,147 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 113 transitions. Word has length 29 [2019-11-21 14:17:52,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:17:52,148 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 113 transitions. [2019-11-21 14:17:52,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-11-21 14:17:52,148 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 113 transitions. [2019-11-21 14:17:52,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-21 14:17:52,149 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:17:52,149 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:17:52,359 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:17:52,360 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:17:52,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:17:52,361 INFO L82 PathProgramCache]: Analyzing trace with hash 2014259399, now seen corresponding path program 1 times [2019-11-21 14:17:52,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:17:52,362 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1704837624] [2019-11-21 14:17:52,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:17:52,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:17:52,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-21 14:17:52,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:17:52,694 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 [2019-11-21 14:17:52,695 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:52,707 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:52,712 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 [2019-11-21 14:17:52,712 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:52,721 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:52,722 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:17:52,722 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 14:17:52,756 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-21 14:17:52,756 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:52,772 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:52,777 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 11 treesize of output 7 [2019-11-21 14:17:52,778 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:52,789 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:52,790 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:17:52,790 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:28 [2019-11-21 14:17:52,822 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2019-11-21 14:17:52,822 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:52,834 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:52,838 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-11-21 14:17:52,838 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:52,849 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:52,849 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:17:52,849 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:42, output treesize:16 [2019-11-21 14:17:54,934 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 14:17:54,936 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2019-11-21 14:17:54,936 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:54,951 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:54,964 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:54,964 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2019-11-21 14:17:54,965 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:17:54,981 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:17:54,982 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:17:54,982 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:9 [2019-11-21 14:17:55,014 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-21 14:17:55,014 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:17:55,129 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:17:57,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:17:57,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:17:57,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:17:57,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:17:57,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:17:57,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:17:57,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:18:00,010 WARN L192 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-21 14:18:00,015 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:18:04,940 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 14:18:04,948 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 14:18:04,949 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:18:04,962 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:18:04,965 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 14:18:04,965 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:18:04,983 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:18:04,983 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:18:04,983 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:25, output treesize:8 [2019-11-21 14:18:05,123 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-21 14:18:05,124 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1704837624] [2019-11-21 14:18:05,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:18:05,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-21 14:18:05,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042826350] [2019-11-21 14:18:05,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-21 14:18:05,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:18:05,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-21 14:18:05,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=258, Unknown=6, NotChecked=0, Total=306 [2019-11-21 14:18:05,128 INFO L87 Difference]: Start difference. First operand 103 states and 113 transitions. Second operand 18 states. [2019-11-21 14:18:22,900 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 26 [2019-11-21 14:19:07,292 WARN L192 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 43 DAG size of output: 16 [2019-11-21 14:19:35,502 WARN L192 SmtUtils]: Spent 6.78 s on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-21 14:21:03,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:21:03,662 INFO L93 Difference]: Finished difference Result 152 states and 165 transitions. [2019-11-21 14:21:03,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-21 14:21:03,663 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 29 [2019-11-21 14:21:03,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:21:03,665 INFO L225 Difference]: With dead ends: 152 [2019-11-21 14:21:03,665 INFO L226 Difference]: Without dead ends: 152 [2019-11-21 14:21:03,665 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 28.6s TimeCoverageRelationStatistics Valid=104, Invalid=589, Unknown=9, NotChecked=0, Total=702 [2019-11-21 14:21:03,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-21 14:21:03,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 103. [2019-11-21 14:21:03,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-21 14:21:03,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2019-11-21 14:21:03,670 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 29 [2019-11-21 14:21:03,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:21:03,671 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions. [2019-11-21 14:21:03,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-21 14:21:03,671 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2019-11-21 14:21:03,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 14:21:03,672 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:21:03,672 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:21:03,877 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:21:03,877 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, alloc_10Err2REQUIRES_VIOLATION, alloc_10Err3REQUIRES_VIOLATION, alloc_10Err4REQUIRES_VIOLATION, alloc_10Err5REQUIRES_VIOLATION, alloc_10Err0REQUIRES_VIOLATION, alloc_10Err1REQUIRES_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, free_10Err4REQUIRES_VIOLATION, free_10Err3REQUIRES_VIOLATION, free_10Err2REQUIRES_VIOLATION, free_10Err1REQUIRES_VIOLATION, free_10Err0REQUIRES_VIOLATION, free_10Err8ASSERT_VIOLATIONMEMORY_FREE, free_10Err6ASSERT_VIOLATIONMEMORY_FREE, free_10Err7ASSERT_VIOLATIONMEMORY_FREE, free_10Err5REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr18ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr11REQUIRES_VIOLATION, entry_pointErr10REQUIRES_VIOLATION, entry_pointErr12REQUIRES_VIOLATION, entry_pointErr25ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr13REQUIRES_VIOLATION, entry_pointErr15REQUIRES_VIOLATION, entry_pointErr14REQUIRES_VIOLATION, entry_pointErr5REQUIRES_VIOLATION, entry_pointErr22ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr7REQUIRES_VIOLATION, entry_pointErr6REQUIRES_VIOLATION, entry_pointErr8REQUIRES_VIOLATION, entry_pointErr16ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr26ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr24ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr4REQUIRES_VIOLATION, entry_pointErr23ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr19REQUIRES_VIOLATION, entry_pointErr17ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr20REQUIRES_VIOLATION, entry_pointErr21ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:21:03,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:21:03,878 INFO L82 PathProgramCache]: Analyzing trace with hash -2023525421, now seen corresponding path program 1 times [2019-11-21 14:21:03,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:21:03,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [41523894] [2019-11-21 14:21:03,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:21:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:21:04,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-21 14:21:04,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:21:04,170 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:21:04,171 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-21 14:21:04,171 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:21:04,189 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 14:21:04,189 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:21:04,190 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 14:21:04,190 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 14:21:04,191 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:21:04,196 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:21:04,204 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:21:04,209 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:21:10,347 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 14:21:10,347 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:21:14,690 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:21:14,692 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 14:21:14,697 INFO L168 Benchmark]: Toolchain (without parser) took 676554.29 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 265.3 MB). Free memory was 951.0 MB in the beginning and 887.2 MB in the end (delta: 63.8 MB). Peak memory consumption was 329.1 MB. Max. memory is 11.5 GB. [2019-11-21 14:21:14,698 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 14:21:14,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 821.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2019-11-21 14:21:14,699 INFO L168 Benchmark]: Boogie Preprocessor took 112.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 14:21:14,699 INFO L168 Benchmark]: RCFGBuilder took 1797.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.4 MB in the end (delta: 124.1 MB). Peak memory consumption was 124.1 MB. Max. memory is 11.5 GB. [2019-11-21 14:21:14,700 INFO L168 Benchmark]: TraceAbstraction took 673809.29 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 119.5 MB). Free memory was 983.4 MB in the beginning and 887.2 MB in the end (delta: 96.3 MB). Peak memory consumption was 215.8 MB. Max. memory is 11.5 GB. [2019-11-21 14:21:14,702 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 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 821.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -156.6 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 112.27 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 1797.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 983.4 MB in the end (delta: 124.1 MB). Peak memory consumption was 124.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 673809.29 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 119.5 MB). Free memory was 983.4 MB in the beginning and 887.2 MB in the end (delta: 96.3 MB). Peak memory consumption was 215.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...