./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_test17_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e7f10697bf40be831ee927139b8f7b8ae344247 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:37:01,884 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 14:37:01,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 14:37:01,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 14:37:01,899 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 14:37:01,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 14:37:01,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 14:37:01,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 14:37:01,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 14:37:01,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 14:37:01,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 14:37:01,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 14:37:01,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 14:37:01,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 14:37:01,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 14:37:01,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 14:37:01,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 14:37:01,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 14:37:01,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 14:37:01,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 14:37:01,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 14:37:01,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 14:37:01,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 14:37:01,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 14:37:01,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 14:37:01,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 14:37:01,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 14:37:01,931 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 14:37:01,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 14:37:01,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 14:37:01,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 14:37:01,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 14:37:01,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 14:37:01,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 14:37:01,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 14:37:01,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 14:37:01,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 14:37:01,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 14:37:01,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 14:37:01,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 14:37:01,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 14:37:01,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 14:37:01,956 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 14:37:01,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 14:37:01,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 14:37:01,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 14:37:01,958 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 14:37:01,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 14:37:01,959 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 14:37:01,959 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 14:37:01,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 14:37:01,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 14:37:01,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 14:37:01,960 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 14:37:01,961 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 14:37:01,961 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 14:37:01,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 14:37:01,961 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 14:37:01,962 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 14:37:01,962 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 14:37:01,962 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 14:37:01,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 14:37:01,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 14:37:01,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 14:37:01,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 14:37:01,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 14:37:01,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 14:37:01,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 14:37:01,965 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 14:37:01,965 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 14:37:01,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 14:37:01,965 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e7f10697bf40be831ee927139b8f7b8ae344247 [2019-11-21 14:37:02,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 14:37:02,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 14:37:02,268 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 14:37:02,269 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 14:37:02,270 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 14:37:02,271 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-21 14:37:02,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e5ef7bd7/58de6375308f4e62bd59ca0228df7d0f/FLAG9ffc82290 [2019-11-21 14:37:02,890 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 14:37:02,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-21 14:37:02,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e5ef7bd7/58de6375308f4e62bd59ca0228df7d0f/FLAG9ffc82290 [2019-11-21 14:37:03,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e5ef7bd7/58de6375308f4e62bd59ca0228df7d0f [2019-11-21 14:37:03,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 14:37:03,240 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 14:37:03,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 14:37:03,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 14:37:03,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 14:37:03,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:37:03" (1/1) ... [2019-11-21 14:37:03,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462bd67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:37:03, skipping insertion in model container [2019-11-21 14:37:03,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 02:37:03" (1/1) ... [2019-11-21 14:37:03,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 14:37:03,324 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 14:37:03,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 14:37:03,978 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 14:37:04,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 14:37:04,171 INFO L205 MainTranslator]: Completed translation [2019-11-21 14:37:04,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:37:04 WrapperNode [2019-11-21 14:37:04,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 14:37:04,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 14:37:04,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 14:37:04,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 14:37:04,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:37:04" (1/1) ... [2019-11-21 14:37:04,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:37:04" (1/1) ... [2019-11-21 14:37:04,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:37:04" (1/1) ... [2019-11-21 14:37:04,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:37:04" (1/1) ... [2019-11-21 14:37:04,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:37:04" (1/1) ... [2019-11-21 14:37:04,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:37:04" (1/1) ... [2019-11-21 14:37:04,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:37:04" (1/1) ... [2019-11-21 14:37:04,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 14:37:04,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 14:37:04,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 14:37:04,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 14:37:04,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:37:04" (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 14:37:04,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 14:37:04,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 14:37:04,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 14:37:04,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 14:37:04,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 14:37:04,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 14:37:04,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 14:37:04,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 14:37:04,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 14:37:04,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 14:37:04,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 14:37:04,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 14:37:04,349 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 14:37:04,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 14:37:04,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 14:37:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 14:37:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 14:37:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 14:37:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 14:37:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 14:37:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 14:37:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 14:37:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 14:37:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 14:37:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 14:37:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 14:37:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 14:37:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 14:37:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 14:37:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 14:37:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 14:37:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 14:37:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 14:37:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 14:37:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 14:37:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 14:37:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 14:37:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 14:37:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 14:37:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 14:37:04,356 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 14:37:04,356 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-21 14:37:04,356 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-21 14:37:04,356 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 14:37:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 14:37:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 14:37:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 14:37:04,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 14:37:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 14:37:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 14:37:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 14:37:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 14:37:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 14:37:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 14:37:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 14:37:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 14:37:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 14:37:04,359 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 14:37:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 14:37:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 14:37:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 14:37:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 14:37:04,360 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 14:37:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 14:37:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 14:37:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 14:37:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 14:37:04,361 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 14:37:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 14:37:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 14:37:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 14:37:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 14:37:04,362 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 14:37:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 14:37:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 14:37:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 14:37:04,363 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 14:37:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 14:37:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 14:37:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 14:37:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 14:37:04,364 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 14:37:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 14:37:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 14:37:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 14:37:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 14:37:04,365 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 14:37:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 14:37:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 14:37:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 14:37:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 14:37:04,366 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 14:37:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 14:37:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 14:37:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 14:37:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 14:37:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 14:37:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 14:37:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 14:37:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 14:37:04,367 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 14:37:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 14:37:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 14:37:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 14:37:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 14:37:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 14:37:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 14:37:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 14:37:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 14:37:04,368 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 14:37:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 14:37:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 14:37:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 14:37:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 14:37:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 14:37:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 14:37:04,369 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 14:37:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 14:37:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 14:37:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 14:37:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 14:37:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 14:37:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 14:37:04,370 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 14:37:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 14:37:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 14:37:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 14:37:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 14:37:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 14:37:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 14:37:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 14:37:04,371 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 14:37:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 14:37:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 14:37:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 14:37:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 14:37:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 14:37:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 14:37:04,372 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 14:37:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 14:37:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 14:37:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 14:37:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 14:37:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 14:37:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 14:37:04,373 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 14:37:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 14:37:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 14:37:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 14:37:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 14:37:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 14:37:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 14:37:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 14:37:04,374 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 14:37:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 14:37:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 14:37:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 14:37:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 14:37:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 14:37:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 14:37:04,375 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 14:37:04,376 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 14:37:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 14:37:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 14:37:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 14:37:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 14:37:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 14:37:04,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 14:37:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 14:37:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 14:37:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 14:37:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 14:37:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 14:37:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 14:37:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 14:37:04,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 14:37:04,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 14:37:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 14:37:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 14:37:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 14:37:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 14:37:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 14:37:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 14:37:04,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 14:37:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 14:37:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 14:37:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 14:37:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 14:37:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 14:37:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 14:37:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 14:37:04,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 14:37:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 14:37:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 14:37:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 14:37:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 14:37:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 14:37:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 14:37:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 14:37:04,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 14:37:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 14:37:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 14:37:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 14:37:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-21 14:37:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-21 14:37:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 14:37:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 14:37:04,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 14:37:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 14:37:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 14:37:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 14:37:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 14:37:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 14:37:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 14:37:04,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 14:37:05,036 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 14:37:05,442 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 14:37:05,955 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 14:37:05,955 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-21 14:37:05,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:37:05 BoogieIcfgContainer [2019-11-21 14:37:05,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 14:37:05,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 14:37:05,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 14:37:05,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 14:37:05,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 02:37:03" (1/3) ... [2019-11-21 14:37:05,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494773fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:37:05, skipping insertion in model container [2019-11-21 14:37:05,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 02:37:04" (2/3) ... [2019-11-21 14:37:05,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494773fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 02:37:05, skipping insertion in model container [2019-11-21 14:37:05,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 02:37:05" (3/3) ... [2019-11-21 14:37:05,967 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-2.i [2019-11-21 14:37:05,977 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 14:37:05,986 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-21 14:37:05,998 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-21 14:37:06,021 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 14:37:06,021 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 14:37:06,021 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 14:37:06,021 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 14:37:06,021 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 14:37:06,022 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 14:37:06,022 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 14:37:06,022 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 14:37:06,053 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-11-21 14:37:06,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 14:37:06,066 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:37:06,067 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:37:06,068 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:37:06,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:37:06,074 INFO L82 PathProgramCache]: Analyzing trace with hash 658326159, now seen corresponding path program 1 times [2019-11-21 14:37:06,089 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:37:06,089 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [432799045] [2019-11-21 14:37:06,090 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 14:37:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:37:06,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:37:06,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:37:06,521 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 14:37:06,522 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:37:06,536 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:37:06,537 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:37:06,538 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 14:37:06,582 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 14:37:06,582 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:37:06,644 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 14:37:06,645 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [432799045] [2019-11-21 14:37:06,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:37:06,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 14:37:06,648 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067302914] [2019-11-21 14:37:06,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:37:06,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:37:06,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:37:06,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:37:06,677 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 5 states. [2019-11-21 14:37:06,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:37:06,969 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2019-11-21 14:37:06,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:37:06,973 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 14:37:06,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:37:06,986 INFO L225 Difference]: With dead ends: 87 [2019-11-21 14:37:06,986 INFO L226 Difference]: Without dead ends: 84 [2019-11-21 14:37:06,988 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 14:37:07,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-21 14:37:07,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2019-11-21 14:37:07,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-21 14:37:07,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2019-11-21 14:37:07,066 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 16 [2019-11-21 14:37:07,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:37:07,067 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2019-11-21 14:37:07,067 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:37:07,068 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2019-11-21 14:37:07,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 14:37:07,070 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:37:07,071 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:37:07,275 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:07,276 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:37:07,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:37:07,277 INFO L82 PathProgramCache]: Analyzing trace with hash 658326160, now seen corresponding path program 1 times [2019-11-21 14:37:07,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:37:07,279 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1433143826] [2019-11-21 14:37:07,279 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 14:37:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:37:07,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 14:37:07,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:37:07,596 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 14:37:07,597 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:37:07,606 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:37:07,606 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:37:07,607 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 14:37:07,706 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 14:37:07,706 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:37:08,573 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 14:37:08,574 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1433143826] [2019-11-21 14:37:08,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:37:08,574 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-21 14:37:08,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106770169] [2019-11-21 14:37:08,576 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 14:37:08,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:37:08,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 14:37:08,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-21 14:37:08,578 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 14 states. [2019-11-21 14:37:10,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:37:10,006 INFO L93 Difference]: Finished difference Result 93 states and 108 transitions. [2019-11-21 14:37:10,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 14:37:10,007 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-21 14:37:10,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:37:10,009 INFO L225 Difference]: With dead ends: 93 [2019-11-21 14:37:10,009 INFO L226 Difference]: Without dead ends: 93 [2019-11-21 14:37:10,010 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2019-11-21 14:37:10,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-21 14:37:10,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2019-11-21 14:37:10,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-21 14:37:10,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2019-11-21 14:37:10,021 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 16 [2019-11-21 14:37:10,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:37:10,021 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2019-11-21 14:37:10,021 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 14:37:10,022 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2019-11-21 14:37:10,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 14:37:10,022 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:37:10,023 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:37:10,225 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:10,227 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:37:10,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:37:10,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1545829840, now seen corresponding path program 1 times [2019-11-21 14:37:10,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:37:10,230 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [497683585] [2019-11-21 14:37:10,230 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 14:37:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:37:10,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 14:37:10,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:37:10,508 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 14:37:10,508 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:37:10,542 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 14:37:10,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [497683585] [2019-11-21 14:37:10,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:37:10,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 14:37:10,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745670005] [2019-11-21 14:37:10,543 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:37:10,543 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:37:10,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:37:10,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:37:10,544 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand 5 states. [2019-11-21 14:37:10,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:37:10,623 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-11-21 14:37:10,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:37:10,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 14:37:10,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:37:10,628 INFO L225 Difference]: With dead ends: 84 [2019-11-21 14:37:10,628 INFO L226 Difference]: Without dead ends: 84 [2019-11-21 14:37:10,628 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 14:37:10,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-21 14:37:10,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-21 14:37:10,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-21 14:37:10,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2019-11-21 14:37:10,636 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 16 [2019-11-21 14:37:10,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:37:10,637 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2019-11-21 14:37:10,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:37:10,637 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2019-11-21 14:37:10,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 14:37:10,638 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:37:10,638 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:37:10,849 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:10,851 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:37:10,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:37:10,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1065898717, now seen corresponding path program 1 times [2019-11-21 14:37:10,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:37:10,854 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1835580266] [2019-11-21 14:37:10,854 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 14:37:11,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:37:11,075 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:37:11,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:37:11,099 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 14:37:11,099 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:37:11,179 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 14:37:11,179 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1835580266] [2019-11-21 14:37:11,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:37:11,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 14:37:11,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841720804] [2019-11-21 14:37:11,180 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:37:11,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:37:11,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:37:11,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:37:11,182 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2019-11-21 14:37:11,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:37:11,248 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-11-21 14:37:11,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:37:11,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 14:37:11,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:37:11,253 INFO L225 Difference]: With dead ends: 84 [2019-11-21 14:37:11,253 INFO L226 Difference]: Without dead ends: 84 [2019-11-21 14:37:11,253 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 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 14:37:11,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-21 14:37:11,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-21 14:37:11,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-21 14:37:11,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2019-11-21 14:37:11,268 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 17 [2019-11-21 14:37:11,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:37:11,268 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2019-11-21 14:37:11,268 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:37:11,268 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2019-11-21 14:37:11,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 14:37:11,269 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:37:11,269 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:37:11,469 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:11,471 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:37:11,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:37:11,472 INFO L82 PathProgramCache]: Analyzing trace with hash 676911618, now seen corresponding path program 1 times [2019-11-21 14:37:11,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:37:11,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1617648087] [2019-11-21 14:37:11,473 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 14:37:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:37:11,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 14:37:11,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:37:11,699 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 14:37:11,699 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:37:11,765 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 14:37:11,765 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1617648087] [2019-11-21 14:37:11,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:37:11,765 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 14:37:11,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096711759] [2019-11-21 14:37:11,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 14:37:11,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:37:11,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 14:37:11,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 14:37:11,769 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 3 states. [2019-11-21 14:37:11,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:37:11,922 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-11-21 14:37:11,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 14:37:11,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-21 14:37:11,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:37:11,925 INFO L225 Difference]: With dead ends: 120 [2019-11-21 14:37:11,925 INFO L226 Difference]: Without dead ends: 115 [2019-11-21 14:37:11,925 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 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 14:37:11,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-21 14:37:11,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 80. [2019-11-21 14:37:11,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-21 14:37:11,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-11-21 14:37:11,933 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 17 [2019-11-21 14:37:11,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:37:11,933 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-11-21 14:37:11,934 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 14:37:11,934 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-11-21 14:37:11,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 14:37:11,935 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:37:11,935 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:37:12,143 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:12,144 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:37:12,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:37:12,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1457557360, now seen corresponding path program 1 times [2019-11-21 14:37:12,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:37:12,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [357693800] [2019-11-21 14:37:12,146 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 14:37:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:37:12,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-21 14:37:12,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:37:12,478 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 14:37:12,479 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:37:12,487 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:37:12,488 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:37:12,488 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 14:37:12,659 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:37:12,659 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:37:13,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:37:13,892 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-21 14:37:14,266 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:37:14,267 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [357693800] [2019-11-21 14:37:14,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:37:14,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-11-21 14:37:14,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246429010] [2019-11-21 14:37:14,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-21 14:37:14,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:37:14,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-21 14:37:14,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-21 14:37:14,270 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 19 states. [2019-11-21 14:37:15,804 WARN L192 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 14:37:16,270 WARN L192 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 14:37:17,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:37:17,171 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2019-11-21 14:37:17,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-21 14:37:17,176 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2019-11-21 14:37:17,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:37:17,177 INFO L225 Difference]: With dead ends: 97 [2019-11-21 14:37:17,177 INFO L226 Difference]: Without dead ends: 97 [2019-11-21 14:37:17,178 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2019-11-21 14:37:17,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-21 14:37:17,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2019-11-21 14:37:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-21 14:37:17,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2019-11-21 14:37:17,186 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 22 [2019-11-21 14:37:17,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:37:17,186 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2019-11-21 14:37:17,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-21 14:37:17,186 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2019-11-21 14:37:17,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 14:37:17,188 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:37:17,188 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, 1, 1, 1, 1, 1, 1] [2019-11-21 14:37:17,391 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:17,396 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:37:17,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:37:17,397 INFO L82 PathProgramCache]: Analyzing trace with hash 2122432263, now seen corresponding path program 1 times [2019-11-21 14:37:17,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:37:17,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1486864117] [2019-11-21 14:37:17,398 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 14:37:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:37:17,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 14:37:17,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:37:17,747 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:37:17,748 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:37:17,871 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:37:17,872 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1486864117] [2019-11-21 14:37:17,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:37:17,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 14:37:17,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275894329] [2019-11-21 14:37:17,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-21 14:37:17,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:37:17,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-21 14:37:17,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-21 14:37:17,873 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand 12 states. [2019-11-21 14:37:18,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:37:18,323 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2019-11-21 14:37:18,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 14:37:18,324 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-11-21 14:37:18,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:37:18,326 INFO L225 Difference]: With dead ends: 98 [2019-11-21 14:37:18,326 INFO L226 Difference]: Without dead ends: 98 [2019-11-21 14:37:18,327 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-21 14:37:18,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-21 14:37:18,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2019-11-21 14:37:18,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-21 14:37:18,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2019-11-21 14:37:18,333 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 35 [2019-11-21 14:37:18,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:37:18,334 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2019-11-21 14:37:18,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-21 14:37:18,334 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2019-11-21 14:37:18,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 14:37:18,335 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:37:18,335 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:37:18,538 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:18,539 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:37:18,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:37:18,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1647594640, now seen corresponding path program 2 times [2019-11-21 14:37:18,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:37:18,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1807360038] [2019-11-21 14:37:18,541 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 14:37:18,871 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 14:37:18,871 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 14:37:18,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 14:37:18,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:37:18,917 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 14:37:18,918 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:37:18,926 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:37:18,926 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:37:18,926 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 14:37:19,145 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:37:19,145 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:37:21,253 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:37:21,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1807360038] [2019-11-21 14:37:21,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:37:21,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2019-11-21 14:37:21,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138152718] [2019-11-21 14:37:21,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-21 14:37:21,255 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:37:21,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-21 14:37:21,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2019-11-21 14:37:21,256 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand 26 states. [2019-11-21 14:37:23,980 WARN L192 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-11-21 14:37:25,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:37:25,016 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2019-11-21 14:37:25,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-21 14:37:25,017 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2019-11-21 14:37:25,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:37:25,020 INFO L225 Difference]: With dead ends: 108 [2019-11-21 14:37:25,020 INFO L226 Difference]: Without dead ends: 108 [2019-11-21 14:37:25,021 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-21 14:37:25,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-11-21 14:37:25,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2019-11-21 14:37:25,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-21 14:37:25,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2019-11-21 14:37:25,031 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 34 [2019-11-21 14:37:25,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:37:25,032 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2019-11-21 14:37:25,032 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-21 14:37:25,032 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2019-11-21 14:37:25,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-21 14:37:25,034 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:37:25,034 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:37:25,241 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:25,242 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:37:25,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:37:25,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1226889072, now seen corresponding path program 3 times [2019-11-21 14:37:25,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:37:25,244 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1794374340] [2019-11-21 14:37:25,244 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 14:37:25,859 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-21 14:37:25,860 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 14:37:25,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-21 14:37:25,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:37:26,350 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:37:26,351 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:37:28,577 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 14:37:28,578 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1794374340] [2019-11-21 14:37:28,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:37:28,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 38 [2019-11-21 14:37:28,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795634732] [2019-11-21 14:37:28,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-21 14:37:28,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:37:28,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-21 14:37:28,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1146, Unknown=0, NotChecked=0, Total=1406 [2019-11-21 14:37:28,581 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand 38 states. [2019-11-21 14:37:29,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:37:29,983 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2019-11-21 14:37:29,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-21 14:37:29,986 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 46 [2019-11-21 14:37:29,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:37:29,987 INFO L225 Difference]: With dead ends: 101 [2019-11-21 14:37:29,988 INFO L226 Difference]: Without dead ends: 101 [2019-11-21 14:37:29,989 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=285, Invalid=1197, Unknown=0, NotChecked=0, Total=1482 [2019-11-21 14:37:29,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-11-21 14:37:29,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-11-21 14:37:29,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-21 14:37:29,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 106 transitions. [2019-11-21 14:37:29,994 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 106 transitions. Word has length 46 [2019-11-21 14:37:29,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:37:29,994 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 106 transitions. [2019-11-21 14:37:29,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-21 14:37:29,995 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 106 transitions. [2019-11-21 14:37:29,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 14:37:29,996 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:37:29,997 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:37:30,202 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:30,203 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:37:30,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:37:30,203 INFO L82 PathProgramCache]: Analyzing trace with hash -2119706825, now seen corresponding path program 2 times [2019-11-21 14:37:30,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:37:30,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [997230853] [2019-11-21 14:37:30,205 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 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 14:37:30,465 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 14:37:30,465 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 14:37:30,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:37:30,469 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:37:30,518 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 14:37:30,518 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:37:30,592 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 14:37:30,592 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [997230853] [2019-11-21 14:37:30,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:37:30,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-21 14:37:30,593 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931289863] [2019-11-21 14:37:30,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 14:37:30,593 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:37:30,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 14:37:30,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-21 14:37:30,594 INFO L87 Difference]: Start difference. First operand 101 states and 106 transitions. Second operand 7 states. [2019-11-21 14:37:30,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:37:30,709 INFO L93 Difference]: Finished difference Result 132 states and 141 transitions. [2019-11-21 14:37:30,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 14:37:30,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-21 14:37:30,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:37:30,711 INFO L225 Difference]: With dead ends: 132 [2019-11-21 14:37:30,712 INFO L226 Difference]: Without dead ends: 129 [2019-11-21 14:37:30,712 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-21 14:37:30,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-11-21 14:37:30,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 102. [2019-11-21 14:37:30,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-21 14:37:30,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2019-11-21 14:37:30,717 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 56 [2019-11-21 14:37:30,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:37:30,718 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2019-11-21 14:37:30,718 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 14:37:30,718 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2019-11-21 14:37:30,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 14:37:30,719 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:37:30,720 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 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 14:37:30,922 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:30,923 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:37:30,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:37:30,924 INFO L82 PathProgramCache]: Analyzing trace with hash -852929006, now seen corresponding path program 1 times [2019-11-21 14:37:30,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:37:30,925 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2145046807] [2019-11-21 14:37:30,926 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:31,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:37:31,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 14:37:31,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:37:31,369 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 14:37:31,369 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:37:31,370 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:37:31,371 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:37:31,371 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 14:37:31,467 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:37:31,468 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 14:37:31,469 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:37:31,488 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 14:37:31,489 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 14:37:31,489 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-21 14:37:31,519 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 14:37:31,519 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:37:31,783 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-21 14:37:31,784 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2145046807] [2019-11-21 14:37:31,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 14:37:31,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-21 14:37:31,784 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805005257] [2019-11-21 14:37:31,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 14:37:31,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:37:31,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 14:37:31,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-21 14:37:31,785 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand 8 states. [2019-11-21 14:37:46,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:37:46,036 INFO L93 Difference]: Finished difference Result 159 states and 177 transitions. [2019-11-21 14:37:46,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 14:37:46,037 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-21 14:37:46,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:37:46,039 INFO L225 Difference]: With dead ends: 159 [2019-11-21 14:37:46,039 INFO L226 Difference]: Without dead ends: 159 [2019-11-21 14:37:46,040 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=83, Invalid=378, Unknown=1, NotChecked=0, Total=462 [2019-11-21 14:37:46,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-11-21 14:37:46,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 108. [2019-11-21 14:37:46,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-21 14:37:46,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 117 transitions. [2019-11-21 14:37:46,049 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 117 transitions. Word has length 56 [2019-11-21 14:37:46,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:37:46,049 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 117 transitions. [2019-11-21 14:37:46,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 14:37:46,050 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 117 transitions. [2019-11-21 14:37:46,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 14:37:46,051 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:37:46,051 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 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 14:37:46,255 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:46,256 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:37:46,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:37:46,257 INFO L82 PathProgramCache]: Analyzing trace with hash -852929005, now seen corresponding path program 1 times [2019-11-21 14:37:46,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:37:46,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1272159853] [2019-11-21 14:37:46,260 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:37:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:37:46,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-21 14:37:46,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:37:46,896 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 14:37:46,897 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:37:46,905 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:37:46,909 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 14:37:46,909 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:37:46,919 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:37:46,919 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:37:46,920 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 14:37:49,198 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 14:37:49,202 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 14 treesize of output 16 [2019-11-21 14:37:49,202 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:37:49,242 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:37:49,258 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:37:49,258 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 11 treesize of output 15 [2019-11-21 14:37:49,259 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:37:49,274 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:37:49,275 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 14:37:49,275 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2019-11-21 14:37:49,315 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 14:37:49,315 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:37:49,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:37:51,754 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:37:51,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:37:51,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:37:51,756 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:37:51,758 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:37:51,759 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:37:51,760 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 14:37:57,287 WARN L192 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 14:37:57,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 14:37:59,942 WARN L192 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2019-11-21 14:38:08,974 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_256|], 2=[|v_#length_214|]} [2019-11-21 14:38:08,983 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 14:38:08,983 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:38:08,994 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:38:08,996 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 14:38:08,997 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:38:09,006 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:38:09,006 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 14:38:09,007 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 14:38:09,782 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 14:38:09,797 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 14:38:09,798 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:38:09,815 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:38:09,818 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 14:38:09,819 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 14:38:09,836 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:38:09,836 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 14:38:09,836 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 14:38:10,003 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 14:38:10,003 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1272159853] [2019-11-21 14:38:10,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 14:38:10,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-21 14:38:10,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761113052] [2019-11-21 14:38:10,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-21 14:38:10,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:38:10,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-21 14:38:10,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=407, Unknown=2, NotChecked=0, Total=462 [2019-11-21 14:38:10,004 INFO L87 Difference]: Start difference. First operand 108 states and 117 transitions. Second operand 22 states. [2019-11-21 14:38:30,416 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 14:38:35,810 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-21 14:38:39,490 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-11-21 14:38:53,674 WARN L192 SmtUtils]: Spent 6.04 s on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-11-21 14:38:59,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:38:59,413 INFO L93 Difference]: Finished difference Result 248 states and 286 transitions. [2019-11-21 14:38:59,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-11-21 14:38:59,414 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-21 14:38:59,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:38:59,416 INFO L225 Difference]: With dead ends: 248 [2019-11-21 14:38:59,417 INFO L226 Difference]: Without dead ends: 248 [2019-11-21 14:38:59,418 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 38.3s TimeCoverageRelationStatistics Valid=169, Invalid=1019, Unknown=2, NotChecked=0, Total=1190 [2019-11-21 14:38:59,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2019-11-21 14:38:59,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 149. [2019-11-21 14:38:59,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-11-21 14:38:59,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 182 transitions. [2019-11-21 14:38:59,427 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 182 transitions. Word has length 56 [2019-11-21 14:38:59,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:38:59,428 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 182 transitions. [2019-11-21 14:38:59,428 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-21 14:38:59,428 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 182 transitions. [2019-11-21 14:38:59,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 14:38:59,429 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:38:59,430 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 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 14:38:59,635 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:38:59,635 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:38:59,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:38:59,636 INFO L82 PathProgramCache]: Analyzing trace with hash 673934239, now seen corresponding path program 1 times [2019-11-21 14:38:59,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:38:59,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [517943102] [2019-11-21 14:38:59,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:38:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:38:59,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 14:38:59,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:38:59,940 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 14:38:59,940 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:38:59,979 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 14:38:59,979 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [517943102] [2019-11-21 14:38:59,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:38:59,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 14:38:59,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785678430] [2019-11-21 14:38:59,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 14:38:59,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:38:59,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 14:38:59,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 14:38:59,982 INFO L87 Difference]: Start difference. First operand 149 states and 182 transitions. Second operand 5 states. [2019-11-21 14:39:00,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:39:00,034 INFO L93 Difference]: Finished difference Result 162 states and 195 transitions. [2019-11-21 14:39:00,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 14:39:00,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-21 14:39:00,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:39:00,036 INFO L225 Difference]: With dead ends: 162 [2019-11-21 14:39:00,036 INFO L226 Difference]: Without dead ends: 162 [2019-11-21 14:39:00,037 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 14:39:00,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-11-21 14:39:00,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 151. [2019-11-21 14:39:00,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2019-11-21 14:39:00,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 182 transitions. [2019-11-21 14:39:00,044 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 182 transitions. Word has length 58 [2019-11-21 14:39:00,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:39:00,044 INFO L462 AbstractCegarLoop]: Abstraction has 151 states and 182 transitions. [2019-11-21 14:39:00,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 14:39:00,044 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 182 transitions. [2019-11-21 14:39:00,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 14:39:00,045 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:39:00,045 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 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 14:39:00,251 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:00,252 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:39:00,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:39:00,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1878222722, now seen corresponding path program 1 times [2019-11-21 14:39:00,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:39:00,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [666843741] [2019-11-21 14:39:00,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:39:00,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 14:39:00,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:39:00,705 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 14:39:00,705 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:39:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 14:39:00,753 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [666843741] [2019-11-21 14:39:00,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 14:39:00,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 14:39:00,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868911627] [2019-11-21 14:39:00,754 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 14:39:00,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 14:39:00,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 14:39:00,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 14:39:00,755 INFO L87 Difference]: Start difference. First operand 151 states and 182 transitions. Second operand 6 states. [2019-11-21 14:39:00,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 14:39:00,875 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2019-11-21 14:39:00,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 14:39:00,876 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-21 14:39:00,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 14:39:00,877 INFO L225 Difference]: With dead ends: 160 [2019-11-21 14:39:00,877 INFO L226 Difference]: Without dead ends: 160 [2019-11-21 14:39:00,878 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 14:39:00,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-11-21 14:39:00,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 153. [2019-11-21 14:39:00,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-11-21 14:39:00,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 184 transitions. [2019-11-21 14:39:00,893 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 184 transitions. Word has length 58 [2019-11-21 14:39:00,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 14:39:00,893 INFO L462 AbstractCegarLoop]: Abstraction has 153 states and 184 transitions. [2019-11-21 14:39:00,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 14:39:00,893 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 184 transitions. [2019-11-21 14:39:00,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 14:39:00,894 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 14:39:00,895 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 14:39:01,099 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:01,100 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 14:39:01,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 14:39:01,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1249334386, now seen corresponding path program 1 times [2019-11-21 14:39:01,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 14:39:01,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [653058941] [2019-11-21 14:39:01,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 14:39:01,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 14:39:01,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 14:39:01,523 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 14:39:01,523 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 14:39:01,526 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 14:39:01,526 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 14:39:01,526 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 14:39:01,588 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 14:39:01,588 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 14:39:01,886 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 14:39:01,887 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 14:39:01,894 INFO L168 Benchmark]: Toolchain (without parser) took 118653.62 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 326.6 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -217.6 MB). Peak memory consumption was 109.1 MB. Max. memory is 11.5 GB. [2019-11-21 14:39:01,895 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 14:39:01,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 931.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -122.0 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-11-21 14:39:01,904 INFO L168 Benchmark]: Boogie Preprocessor took 109.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-21 14:39:01,905 INFO L168 Benchmark]: RCFGBuilder took 1674.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 956.9 MB in the end (delta: 114.6 MB). Peak memory consumption was 114.6 MB. Max. memory is 11.5 GB. [2019-11-21 14:39:01,905 INFO L168 Benchmark]: TraceAbstraction took 115933.30 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 208.7 MB). Free memory was 956.9 MB in the beginning and 1.2 GB in the end (delta: -222.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 14:39:01,911 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 931.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -122.0 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 109.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1674.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 956.9 MB in the end (delta: 114.6 MB). Peak memory consumption was 114.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 115933.30 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 208.7 MB). Free memory was 956.9 MB in the beginning and 1.2 GB in the end (delta: -222.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...