./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 34ebb1e4 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_test4-2.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 46ca4cc321f66643bb303146077f836b6b81d33d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-34ebb1e [2019-11-21 16:17:44,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 16:17:44,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 16:17:44,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 16:17:44,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 16:17:44,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 16:17:44,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 16:17:44,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 16:17:44,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 16:17:44,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 16:17:44,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 16:17:44,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 16:17:44,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 16:17:44,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 16:17:44,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 16:17:44,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 16:17:44,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 16:17:44,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 16:17:44,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 16:17:44,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 16:17:44,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 16:17:44,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 16:17:44,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 16:17:44,590 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 16:17:44,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 16:17:44,594 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 16:17:44,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 16:17:44,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 16:17:44,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 16:17:44,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 16:17:44,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 16:17:44,599 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 16:17:44,600 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 16:17:44,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 16:17:44,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 16:17:44,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 16:17:44,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 16:17:44,605 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 16:17:44,605 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 16:17:44,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 16:17:44,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 16:17:44,609 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 16:17:44,646 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 16:17:44,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 16:17:44,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 16:17:44,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 16:17:44,650 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 16:17:44,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 16:17:44,650 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 16:17:44,651 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 16:17:44,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 16:17:44,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 16:17:44,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 16:17:44,651 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 16:17:44,652 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 16:17:44,652 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 16:17:44,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 16:17:44,652 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 16:17:44,652 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 16:17:44,653 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 16:17:44,653 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 16:17:44,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 16:17:44,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 16:17:44,654 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 16:17:44,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 16:17:44,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 16:17:44,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 16:17:44,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 16:17:44,655 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 16:17:44,655 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 16:17:44,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 16:17:44,655 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 -> 46ca4cc321f66643bb303146077f836b6b81d33d [2019-11-21 16:17:44,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 16:17:45,013 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 16:17:45,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 16:17:45,018 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 16:17:45,019 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 16:17:45,020 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-21 16:17:45,093 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b07449df6/bd50d5a163f54058ab92f3db84c9f804/FLAG8bfb1bc49 [2019-11-21 16:17:45,671 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 16:17:45,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-21 16:17:45,689 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b07449df6/bd50d5a163f54058ab92f3db84c9f804/FLAG8bfb1bc49 [2019-11-21 16:17:45,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b07449df6/bd50d5a163f54058ab92f3db84c9f804 [2019-11-21 16:17:45,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 16:17:45,958 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 16:17:45,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 16:17:45,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 16:17:45,963 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 16:17:45,964 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:17:45" (1/1) ... [2019-11-21 16:17:45,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c8f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:45, skipping insertion in model container [2019-11-21 16:17:45,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:17:45" (1/1) ... [2019-11-21 16:17:45,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 16:17:46,039 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 16:17:46,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 16:17:46,609 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 16:17:46,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 16:17:46,800 INFO L205 MainTranslator]: Completed translation [2019-11-21 16:17:46,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:46 WrapperNode [2019-11-21 16:17:46,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 16:17:46,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 16:17:46,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 16:17:46,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 16:17:46,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:46" (1/1) ... [2019-11-21 16:17:46,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:46" (1/1) ... [2019-11-21 16:17:46,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:46" (1/1) ... [2019-11-21 16:17:46,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:46" (1/1) ... [2019-11-21 16:17:46,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:46" (1/1) ... [2019-11-21 16:17:46,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:46" (1/1) ... [2019-11-21 16:17:46,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:46" (1/1) ... [2019-11-21 16:17:46,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 16:17:46,914 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 16:17:46,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 16:17:46,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 16:17:46,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:46" (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 16:17:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 16:17:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 16:17:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 16:17:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 16:17:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 16:17:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 16:17:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 16:17:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 16:17:46,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 16:17:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 16:17:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 16:17:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 16:17:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 16:17:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 16:17:46,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 16:17:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 16:17:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 16:17:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 16:17:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 16:17:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 16:17:46,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 16:17:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 16:17:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 16:17:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 16:17:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 16:17:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 16:17:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 16:17:46,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 16:17:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 16:17:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 16:17:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 16:17:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 16:17:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 16:17:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 16:17:46,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 16:17:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 16:17:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 16:17:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 16:17:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 16:17:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 16:17:46,975 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 16:17:46,976 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 16:17:46,976 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 16:17:46,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 16:17:46,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 16:17:46,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 16:17:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 16:17:46,976 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 16:17:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 16:17:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 16:17:46,977 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 16:17:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 16:17:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 16:17:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 16:17:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 16:17:46,978 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 16:17:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 16:17:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 16:17:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 16:17:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 16:17:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 16:17:46,979 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 16:17:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 16:17:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 16:17:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 16:17:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 16:17:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 16:17:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 16:17:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 16:17:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 16:17:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 16:17:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 16:17:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 16:17:46,982 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 16:17:46,982 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 16:17:46,982 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 16:17:46,982 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 16:17:46,982 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 16:17:46,982 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 16:17:46,983 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 16:17:46,983 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 16:17:46,983 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 16:17:46,983 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 16:17:46,983 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 16:17:46,983 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 16:17:46,984 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 16:17:46,984 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 16:17:46,984 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 16:17:46,984 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 16:17:46,984 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 16:17:46,984 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 16:17:46,985 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 16:17:46,985 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 16:17:46,985 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 16:17:46,985 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 16:17:46,985 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 16:17:46,985 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 16:17:46,986 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 16:17:46,986 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 16:17:46,986 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 16:17:46,986 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 16:17:46,986 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 16:17:46,986 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 16:17:46,986 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 16:17:46,986 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 16:17:46,986 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 16:17:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 16:17:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 16:17:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 16:17:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 16:17:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 16:17:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 16:17:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 16:17:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 16:17:46,987 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 16:17:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 16:17:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 16:17:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 16:17:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 16:17:46,988 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 16:17:46,990 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 16:17:46,990 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 16:17:46,990 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 16:17:46,991 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 16:17:46,991 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 16:17:46,991 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 16:17:46,991 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 16:17:46,991 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 16:17:46,992 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 16:17:46,992 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 16:17:46,993 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 16:17:46,994 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 16:17:46,994 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 16:17:46,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 16:17:46,995 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 16:17:46,995 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 16:17:46,995 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 16:17:46,995 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 16:17:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 16:17:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 16:17:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 16:17:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 16:17:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 16:17:46,997 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 16:17:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 16:17:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 16:17:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 16:17:46,998 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 16:17:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 16:17:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 16:17:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 16:17:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 16:17:46,999 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 16:17:47,000 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 16:17:47,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 16:17:47,000 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 16:17:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 16:17:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 16:17:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 16:17:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 16:17:47,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 16:17:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 16:17:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 16:17:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 16:17:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 16:17:47,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 16:17:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 16:17:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 16:17:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 16:17:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 16:17:47,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 16:17:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 16:17:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 16:17:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 16:17:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 16:17:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 16:17:47,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 16:17:47,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 16:17:47,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 16:17:47,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 16:17:47,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 16:17:47,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 16:17:47,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 16:17:47,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 16:17:47,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 16:17:47,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 16:17:47,007 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 16:17:47,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 16:17:47,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 16:17:47,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 16:17:47,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 16:17:47,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 16:17:47,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 16:17:47,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 16:17:47,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 16:17:47,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 16:17:47,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 16:17:47,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 16:17:47,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 16:17:47,009 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 16:17:47,010 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 16:17:47,010 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 16:17:47,011 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 16:17:47,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 16:17:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 16:17:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 16:17:47,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 16:17:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 16:17:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 16:17:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 16:17:47,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 16:17:47,704 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 16:17:48,131 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 16:17:48,506 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 16:17:48,507 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 16:17:48,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:17:48 BoogieIcfgContainer [2019-11-21 16:17:48,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 16:17:48,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 16:17:48,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 16:17:48,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 16:17:48,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:17:45" (1/3) ... [2019-11-21 16:17:48,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a02b8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:17:48, skipping insertion in model container [2019-11-21 16:17:48,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:17:46" (2/3) ... [2019-11-21 16:17:48,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a02b8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:17:48, skipping insertion in model container [2019-11-21 16:17:48,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:17:48" (3/3) ... [2019-11-21 16:17:48,518 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2019-11-21 16:17:48,528 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 16:17:48,537 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-21 16:17:48,550 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-21 16:17:48,571 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 16:17:48,572 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 16:17:48,572 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 16:17:48,572 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 16:17:48,572 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 16:17:48,573 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 16:17:48,573 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 16:17:48,573 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 16:17:48,591 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-11-21 16:17:48,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 16:17:48,602 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 16:17:48,603 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 16:17:48,604 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 16:17:48,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 16:17:48,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1299630744, now seen corresponding path program 1 times [2019-11-21 16:17:48,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 16:17:48,619 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [239475361] [2019-11-21 16:17:48,620 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 16:17:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 16:17:48,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 16:17:48,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 16:17:48,974 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 16:17:48,974 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 16:17:49,085 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 16:17:49,086 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [239475361] [2019-11-21 16:17:49,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 16:17:49,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 16:17:49,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812755065] [2019-11-21 16:17:49,093 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 16:17:49,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 16:17:49,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 16:17:49,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 16:17:49,112 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 5 states. [2019-11-21 16:17:49,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 16:17:49,212 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-11-21 16:17:49,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 16:17:49,215 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 16:17:49,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 16:17:49,227 INFO L225 Difference]: With dead ends: 53 [2019-11-21 16:17:49,228 INFO L226 Difference]: Without dead ends: 50 [2019-11-21 16:17:49,229 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 16:17:49,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-21 16:17:49,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2019-11-21 16:17:49,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-21 16:17:49,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-21 16:17:49,319 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2019-11-21 16:17:49,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 16:17:49,319 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-21 16:17:49,320 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 16:17:49,320 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-21 16:17:49,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 16:17:49,323 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 16:17:49,323 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 16:17:49,531 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:49,532 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 16:17:49,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 16:17:49,533 INFO L82 PathProgramCache]: Analyzing trace with hash 443179591, now seen corresponding path program 1 times [2019-11-21 16:17:49,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 16:17:49,535 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [110181636] [2019-11-21 16:17:49,535 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 16:17:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 16:17:49,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 16:17:49,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 16:17:49,789 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 16:17:49,790 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 16:17:49,851 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 16:17:49,852 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [110181636] [2019-11-21 16:17:49,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 16:17:49,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 16:17:49,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910684779] [2019-11-21 16:17:49,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 16:17:49,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 16:17:49,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 16:17:49,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 16:17:49,855 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 3 states. [2019-11-21 16:17:49,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 16:17:49,928 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-21 16:17:49,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 16:17:49,929 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-21 16:17:49,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 16:17:49,930 INFO L225 Difference]: With dead ends: 46 [2019-11-21 16:17:49,933 INFO L226 Difference]: Without dead ends: 43 [2019-11-21 16:17:49,933 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 16:17:49,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-21 16:17:49,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2019-11-21 16:17:49,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-21 16:17:49,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-21 16:17:49,942 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2019-11-21 16:17:49,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 16:17:49,942 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-21 16:17:49,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 16:17:49,942 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-21 16:17:49,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 16:17:49,943 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 16:17:49,944 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 16:17:50,144 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:50,146 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 16:17:50,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 16:17:50,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1246513499, now seen corresponding path program 1 times [2019-11-21 16:17:50,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 16:17:50,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1572914415] [2019-11-21 16:17:50,148 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 16:17:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 16:17:50,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 16:17:50,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 16:17:50,385 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:50,385 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 16:17:50,430 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:50,430 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1572914415] [2019-11-21 16:17:50,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 16:17:50,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 16:17:50,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249625985] [2019-11-21 16:17:50,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 16:17:50,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 16:17:50,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 16:17:50,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 16:17:50,432 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2019-11-21 16:17:50,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 16:17:50,449 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-21 16:17:50,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 16:17:50,450 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-21 16:17:50,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 16:17:50,451 INFO L225 Difference]: With dead ends: 30 [2019-11-21 16:17:50,451 INFO L226 Difference]: Without dead ends: 30 [2019-11-21 16:17:50,451 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 16:17:50,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-21 16:17:50,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-21 16:17:50,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-21 16:17:50,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-21 16:17:50,457 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2019-11-21 16:17:50,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 16:17:50,458 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-21 16:17:50,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 16:17:50,458 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-21 16:17:50,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-21 16:17:50,459 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 16:17:50,460 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 16:17:50,670 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:50,671 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 16:17:50,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 16:17:50,671 INFO L82 PathProgramCache]: Analyzing trace with hash -12786823, now seen corresponding path program 1 times [2019-11-21 16:17:50,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 16:17:50,672 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1980302627] [2019-11-21 16:17:50,672 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 16:17:50,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 16:17:50,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 16:17:50,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 16:17:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:51,028 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 16:17:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:51,122 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1980302627] [2019-11-21 16:17:51,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 16:17:51,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-21 16:17:51,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490614811] [2019-11-21 16:17:51,123 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 16:17:51,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 16:17:51,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 16:17:51,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 16:17:51,124 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 9 states. [2019-11-21 16:17:51,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 16:17:51,288 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-21 16:17:51,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 16:17:51,293 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-21 16:17:51,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 16:17:51,295 INFO L225 Difference]: With dead ends: 29 [2019-11-21 16:17:51,295 INFO L226 Difference]: Without dead ends: 29 [2019-11-21 16:17:51,295 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 16:17:51,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-21 16:17:51,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-21 16:17:51,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-21 16:17:51,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-11-21 16:17:51,306 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 21 [2019-11-21 16:17:51,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 16:17:51,307 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-11-21 16:17:51,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 16:17:51,308 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-11-21 16:17:51,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 16:17:51,309 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 16:17:51,309 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 16:17:51,512 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:51,513 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 16:17:51,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 16:17:51,513 INFO L82 PathProgramCache]: Analyzing trace with hash -396391139, now seen corresponding path program 1 times [2019-11-21 16:17:51,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 16:17:51,514 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1669767811] [2019-11-21 16:17:51,514 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 16:17:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 16:17:51,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 16:17:51,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 16:17:51,796 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 16:17:51,796 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 16:17:51,800 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 16:17:51,801 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 16:17:51,801 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 16:17:51,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:51,850 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 16:17:51,899 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:51,900 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1669767811] [2019-11-21 16:17:51,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 16:17:51,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 16:17:51,900 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801852109] [2019-11-21 16:17:51,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 16:17:51,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 16:17:51,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 16:17:51,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 16:17:51,901 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 5 states. [2019-11-21 16:17:51,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 16:17:51,971 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-21 16:17:51,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 16:17:51,971 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 16:17:51,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 16:17:51,972 INFO L225 Difference]: With dead ends: 35 [2019-11-21 16:17:51,972 INFO L226 Difference]: Without dead ends: 35 [2019-11-21 16:17:51,973 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 16:17:51,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-21 16:17:51,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-21 16:17:51,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-21 16:17:51,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-21 16:17:51,982 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 22 [2019-11-21 16:17:51,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 16:17:51,983 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-21 16:17:51,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 16:17:51,983 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-21 16:17:51,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 16:17:51,985 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 16:17:51,986 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 16:17:52,190 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:52,194 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 16:17:52,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 16:17:52,195 INFO L82 PathProgramCache]: Analyzing trace with hash 491112542, now seen corresponding path program 1 times [2019-11-21 16:17:52,195 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 16:17:52,195 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1947933363] [2019-11-21 16:17:52,195 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 16:17:52,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 16:17:52,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-21 16:17:52,409 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 16:17:52,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:52,425 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 16:17:52,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:52,456 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1947933363] [2019-11-21 16:17:52,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 16:17:52,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 16:17:52,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316978485] [2019-11-21 16:17:52,457 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 16:17:52,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 16:17:52,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 16:17:52,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 16:17:52,458 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2019-11-21 16:17:52,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 16:17:52,485 INFO L93 Difference]: Finished difference Result 42 states and 44 transitions. [2019-11-21 16:17:52,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 16:17:52,485 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 16:17:52,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 16:17:52,486 INFO L225 Difference]: With dead ends: 42 [2019-11-21 16:17:52,486 INFO L226 Difference]: Without dead ends: 42 [2019-11-21 16:17:52,487 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 16:17:52,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-11-21 16:17:52,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2019-11-21 16:17:52,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-11-21 16:17:52,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2019-11-21 16:17:52,491 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 22 [2019-11-21 16:17:52,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 16:17:52,492 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2019-11-21 16:17:52,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 16:17:52,492 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2019-11-21 16:17:52,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 16:17:52,493 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 16:17:52,493 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 16:17:52,702 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:52,702 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 16:17:52,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 16:17:52,703 INFO L82 PathProgramCache]: Analyzing trace with hash 596776955, now seen corresponding path program 1 times [2019-11-21 16:17:52,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 16:17:52,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2056076356] [2019-11-21 16:17:52,704 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 16:17:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 16:17:52,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 16:17:52,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 16:17:52,942 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:52,943 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 16:17:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:52,986 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2056076356] [2019-11-21 16:17:52,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 16:17:52,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-21 16:17:52,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190137216] [2019-11-21 16:17:52,987 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 16:17:52,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 16:17:52,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 16:17:52,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 16:17:52,988 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 5 states. [2019-11-21 16:17:53,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 16:17:53,008 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2019-11-21 16:17:53,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 16:17:53,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-21 16:17:53,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 16:17:53,010 INFO L225 Difference]: With dead ends: 27 [2019-11-21 16:17:53,010 INFO L226 Difference]: Without dead ends: 27 [2019-11-21 16:17:53,011 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 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 16:17:53,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-21 16:17:53,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-21 16:17:53,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-21 16:17:53,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-11-21 16:17:53,018 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 23 [2019-11-21 16:17:53,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 16:17:53,019 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-11-21 16:17:53,019 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 16:17:53,019 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-11-21 16:17:53,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 16:17:53,020 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 16:17:53,020 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 16:17:53,226 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:53,229 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 16:17:53,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 16:17:53,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1320216799, now seen corresponding path program 1 times [2019-11-21 16:17:53,230 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 16:17:53,230 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [161332238] [2019-11-21 16:17:53,230 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 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 16:17:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 16:17:53,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 16:17:53,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 16:17:53,571 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:53,572 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 16:17:53,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:53,656 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [161332238] [2019-11-21 16:17:53,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 16:17:53,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-21 16:17:53,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826516969] [2019-11-21 16:17:53,657 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 16:17:53,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 16:17:53,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 16:17:53,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 16:17:53,658 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2019-11-21 16:17:53,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 16:17:53,759 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-11-21 16:17:53,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 16:17:53,760 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-21 16:17:53,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 16:17:53,761 INFO L225 Difference]: With dead ends: 26 [2019-11-21 16:17:53,761 INFO L226 Difference]: Without dead ends: 26 [2019-11-21 16:17:53,762 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 16:17:53,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-21 16:17:53,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-21 16:17:53,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-21 16:17:53,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-11-21 16:17:53,766 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 24 [2019-11-21 16:17:53,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 16:17:53,766 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-11-21 16:17:53,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 16:17:53,766 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-11-21 16:17:53,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 16:17:53,767 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 16:17:53,768 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 16:17:53,975 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:53,976 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 16:17:53,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 16:17:53,977 INFO L82 PathProgramCache]: Analyzing trace with hash -2022951811, now seen corresponding path program 1 times [2019-11-21 16:17:53,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 16:17:53,978 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1946713964] [2019-11-21 16:17:53,978 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 16:17:54,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 16:17:54,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 16:17:54,259 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 16:17:54,259 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 16:17:54,261 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 16:17:54,261 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 16:17:54,262 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 16:17:54,350 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 16:17:54,350 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 16:17:54,352 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 16:17:54,379 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 16:17:54,379 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 16:17:54,379 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-21 16:17:54,435 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-11-21 16:17:54,436 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 16:17:54,447 INFO L567 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-11-21 16:17:54,448 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 16:17:54,449 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2019-11-21 16:17:54,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 16:17:54,481 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 16:17:54,728 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 16:17:54,729 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1946713964] [2019-11-21 16:17:54,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 16:17:54,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2019-11-21 16:17:54,729 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428721505] [2019-11-21 16:17:54,730 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 16:17:54,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 16:17:54,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 16:17:54,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-21 16:17:54,731 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 10 states. [2019-11-21 16:17:56,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 16:17:56,936 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-21 16:17:56,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-21 16:17:56,937 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-11-21 16:17:56,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 16:17:56,938 INFO L225 Difference]: With dead ends: 46 [2019-11-21 16:17:56,938 INFO L226 Difference]: Without dead ends: 46 [2019-11-21 16:17:56,939 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-21 16:17:56,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-11-21 16:17:56,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2019-11-21 16:17:56,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-21 16:17:56,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-11-21 16:17:56,945 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2019-11-21 16:17:56,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 16:17:56,946 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-11-21 16:17:56,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 16:17:56,946 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-11-21 16:17:56,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 16:17:56,947 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 16:17:56,948 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 16:17:57,150 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:57,152 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 16:17:57,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 16:17:57,153 INFO L82 PathProgramCache]: Analyzing trace with hash 2075501980, now seen corresponding path program 1 times [2019-11-21 16:17:57,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 16:17:57,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [903904992] [2019-11-21 16:17:57,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 16:17:57,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 16:17:57,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 16:17:57,427 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 16:17:57,428 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 16:17:57,433 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 16:17:57,434 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 16:17:57,434 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-11-21 16:17:57,547 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 16:17:57,548 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 16:17:57,568 INFO L567 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-11-21 16:17:57,568 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 16:17:57,568 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:13 [2019-11-21 16:17:57,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 16:17:57,597 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 16:17:57,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 16:17:57,770 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [903904992] [2019-11-21 16:17:57,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 16:17:57,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-21 16:17:57,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078835202] [2019-11-21 16:17:57,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-21 16:17:57,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 16:17:57,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-21 16:17:57,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-11-21 16:17:57,771 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 15 states. [2019-11-21 16:17:58,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 16:17:58,418 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2019-11-21 16:17:58,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-21 16:17:58,419 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2019-11-21 16:17:58,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 16:17:58,420 INFO L225 Difference]: With dead ends: 49 [2019-11-21 16:17:58,420 INFO L226 Difference]: Without dead ends: 49 [2019-11-21 16:17:58,421 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2019-11-21 16:17:58,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-11-21 16:17:58,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 38. [2019-11-21 16:17:58,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-11-21 16:17:58,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2019-11-21 16:17:58,427 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 25 [2019-11-21 16:17:58,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 16:17:58,427 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2019-11-21 16:17:58,427 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-21 16:17:58,427 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2019-11-21 16:17:58,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 16:17:58,428 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 16:17:58,429 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 16:17:58,630 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:58,631 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 16:17:58,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 16:17:58,632 INFO L82 PathProgramCache]: Analyzing trace with hash -669642114, now seen corresponding path program 2 times [2019-11-21 16:17:58,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 16:17:58,633 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [883903640] [2019-11-21 16:17:58,633 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 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 16:17:58,875 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 16:17:58,875 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 16:17:58,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-21 16:17:58,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 16:17:58,893 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:58,893 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 16:17:58,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 16:17:58,914 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [883903640] [2019-11-21 16:17:58,914 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 16:17:58,914 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-21 16:17:58,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530917471] [2019-11-21 16:17:58,915 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 16:17:58,915 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 16:17:58,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 16:17:58,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 16:17:58,915 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand 5 states. [2019-11-21 16:17:58,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 16:17:58,945 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-11-21 16:17:58,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 16:17:58,946 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-21 16:17:58,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 16:17:58,947 INFO L225 Difference]: With dead ends: 39 [2019-11-21 16:17:58,947 INFO L226 Difference]: Without dead ends: 39 [2019-11-21 16:17:58,948 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 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 16:17:58,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2019-11-21 16:17:58,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 25. [2019-11-21 16:17:58,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-21 16:17:58,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-21 16:17:58,952 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 25 [2019-11-21 16:17:58,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 16:17:58,953 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-21 16:17:58,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 16:17:58,953 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-21 16:17:58,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 16:17:58,954 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 16:17:58,954 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 16:17:59,157 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:17:59,158 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, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 16:17:59,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 16:17:59,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1224078522, now seen corresponding path program 1 times [2019-11-21 16:17:59,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 16:17:59,159 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [307450511] [2019-11-21 16:17:59,160 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 16:17:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 16:17:59,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-21 16:17:59,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 16:17:59,473 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 16:17:59,474 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-21 16:17:59,475 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 16:17:59,491 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 16:17:59,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 16:17:59,495 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 16:17:59,495 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 16:17:59,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 16:17:59,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 16:17:59,510 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 16:17:59,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 16:18:03,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 16:18:04,023 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 16:18:04,024 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 16:18:04,235 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-11-21 16:18:08,630 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 16:18:08,631 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 16:18:08,640 INFO L168 Benchmark]: Toolchain (without parser) took 22681.94 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 294.6 MB). Free memory was 956.3 MB in the beginning and 980.4 MB in the end (delta: -24.1 MB). Peak memory consumption was 270.5 MB. Max. memory is 11.5 GB. [2019-11-21 16:18:08,640 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 16:18:08,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -119.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-21 16:18:08,642 INFO L168 Benchmark]: Boogie Preprocessor took 112.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-21 16:18:08,642 INFO L168 Benchmark]: RCFGBuilder took 1594.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 956.9 MB in the end (delta: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 11.5 GB. [2019-11-21 16:18:08,643 INFO L168 Benchmark]: TraceAbstraction took 20128.49 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.6 MB). Free memory was 956.9 MB in the beginning and 980.4 MB in the end (delta: -23.5 MB). Peak memory consumption was 162.1 MB. Max. memory is 11.5 GB. [2019-11-21 16:18:08,646 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 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 842.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -119.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 112.44 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 1594.69 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: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 20128.49 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.6 MB). Free memory was 956.9 MB in the beginning and 980.4 MB in the end (delta: -23.5 MB). Peak memory consumption was 162.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...