./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test6.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test6.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 e573255b947653c3fea707757dfa9bfc72698e67 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 12:22:57,638 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:22:57,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:22:57,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:22:57,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:22:57,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:22:57,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:22:57,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:22:57,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:22:57,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:22:57,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:22:57,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:22:57,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:22:57,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:22:57,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:22:57,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:22:57,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:22:57,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:22:57,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:22:57,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:22:57,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:22:57,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:22:57,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:22:57,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:22:57,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:22:57,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:22:57,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:22:57,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:22:57,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:22:57,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:22:57,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:22:57,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:22:57,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:22:57,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:22:57,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:22:57,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:22:57,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:22:57,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:22:57,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:22:57,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:22:57,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:22:57,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 12:22:57,744 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:22:57,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:22:57,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:22:57,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:22:57,746 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:22:57,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:22:57,747 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 12:22:57,747 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:22:57,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:22:57,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 12:22:57,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:22:57,750 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:22:57,750 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:22:57,750 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:22:57,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:22:57,751 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:22:57,751 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:22:57,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 12:22:57,752 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:22:57,752 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:22:57,752 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:22:57,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:22:57,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:22:57,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:22:57,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:22:57,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:22:57,754 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:22:57,754 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:22:57,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:22:57,755 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 -> e573255b947653c3fea707757dfa9bfc72698e67 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:22:58,133 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:22:58,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:22:58,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:22:58,157 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:22:58,158 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:22:58,159 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test6.i [2019-11-21 12:22:58,231 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2b3cd644/677a53589f6643ef90c3597670ce4393/FLAG423c302bd [2019-11-21 12:22:58,722 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:22:58,722 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test6.i [2019-11-21 12:22:58,742 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2b3cd644/677a53589f6643ef90c3597670ce4393/FLAG423c302bd [2019-11-21 12:22:59,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2b3cd644/677a53589f6643ef90c3597670ce4393 [2019-11-21 12:22:59,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:22:59,067 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:22:59,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:22:59,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:22:59,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:22:59,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:22:59" (1/1) ... [2019-11-21 12:22:59,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d40c4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:22:59, skipping insertion in model container [2019-11-21 12:22:59,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:22:59" (1/1) ... [2019-11-21 12:22:59,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:22:59,158 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:22:59,722 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:22:59,723 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 12:22:59,723 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:22:59,748 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:22:59,750 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 12:22:59,750 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:22:59,754 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:22:59,755 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 12:22:59,755 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:22:59,759 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:22:59,760 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 12:22:59,760 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:22:59,794 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:22:59,795 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 12:22:59,795 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:22:59,814 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:22:59,815 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [766] [2019-11-21 12:22:59,815 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:22:59,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:22:59,866 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:22:59,892 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:22:59,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:22:59,966 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:23:00,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:23:00,114 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:23:00,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:23:00 WrapperNode [2019-11-21 12:23:00,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:23:00,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:23:00,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:23:00,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:23:00,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:23:00" (1/1) ... [2019-11-21 12:23:00,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:23:00" (1/1) ... [2019-11-21 12:23:00,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:23:00" (1/1) ... [2019-11-21 12:23:00,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:23:00" (1/1) ... [2019-11-21 12:23:00,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:23:00" (1/1) ... [2019-11-21 12:23:00,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:23:00" (1/1) ... [2019-11-21 12:23:00,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:23:00" (1/1) ... [2019-11-21 12:23:00,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:23:00,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:23:00,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:23:00,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:23:00,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:23:00" (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 12:23:00,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:23:00,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:23:00,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:23:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:23:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:23:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 12:23:00,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 12:23:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 12:23:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 12:23:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 12:23:00,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 12:23:00,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 12:23:00,296 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:23:00,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 12:23:00,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 12:23:00,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 12:23:00,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 12:23:00,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 12:23:00,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 12:23:00,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 12:23:00,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 12:23:00,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 12:23:00,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 12:23:00,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 12:23:00,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 12:23:00,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 12:23:00,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 12:23:00,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 12:23:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 12:23:00,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 12:23:00,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 12:23:00,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 12:23:00,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 12:23:00,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 12:23:00,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 12:23:00,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 12:23:00,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 12:23:00,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 12:23:00,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 12:23:00,304 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 12:23:00,304 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 12:23:00,304 INFO L138 BoogieDeclarations]: Found implementation of procedure f6 [2019-11-21 12:23:00,304 INFO L138 BoogieDeclarations]: Found implementation of procedure g6 [2019-11-21 12:23:00,304 INFO L138 BoogieDeclarations]: Found implementation of procedure probe1_6 [2019-11-21 12:23:00,305 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_6 [2019-11-21 12:23:00,305 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 12:23:00,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:23:00,306 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 12:23:00,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 12:23:00,307 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 12:23:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:23:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:23:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:23:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:23:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:23:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:23:00,311 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:23:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:23:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:23:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:23:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:23:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:23:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 12:23:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 12:23:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 12:23:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:23:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:23:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:23:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:23:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:23:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:23:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:23:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:23:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:23:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:23:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:23:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:23:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:23:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:23:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:23:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:23:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:23:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:23:00,315 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:23:00,315 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:23:00,315 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:23:00,315 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:23:00,315 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:23:00,316 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:23:00,316 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:23:00,316 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:23:00,316 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:23:00,316 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:23:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:23:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:23:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:23:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:23:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:23:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:23:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:23:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:23:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:23:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:23:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:23:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:23:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:23:00,319 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:23:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:23:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:23:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:23:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:23:00,320 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:23:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:23:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:23:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:23:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:23:00,321 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:23:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:23:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:23:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:23:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:23:00,322 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:23:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:23:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:23:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:23:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:23:00,323 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:23:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:23:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:23:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:23:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:23:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:23:00,324 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:23:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:23:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:23:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:23:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:23:00,325 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:23:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:23:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:23:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:23:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:23:00,326 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:23:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:23:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:23:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:23:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:23:00,327 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:23:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:23:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:23:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:23:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 12:23:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:23:00,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 12:23:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 12:23:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 12:23:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 12:23:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 12:23:00,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 12:23:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:23:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 12:23:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 12:23:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:23:00,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:23:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 12:23:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 12:23:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 12:23:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:23:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 12:23:00,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 12:23:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 12:23:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 12:23:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 12:23:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 12:23:00,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:23:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 12:23:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 12:23:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 12:23:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 12:23:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 12:23:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:23:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:23:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 12:23:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 12:23:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:23:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 12:23:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 12:23:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 12:23:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 12:23:00,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 12:23:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 12:23:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 12:23:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 12:23:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 12:23:00,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 12:23:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 12:23:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 12:23:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 12:23:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 12:23:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure f6 [2019-11-21 12:23:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure g6 [2019-11-21 12:23:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure probe1_6 [2019-11-21 12:23:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_6 [2019-11-21 12:23:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 12:23:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:23:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:23:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:23:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:23:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:23:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 12:23:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 12:23:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 12:23:00,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 12:23:00,960 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:23:01,353 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:23:01,795 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 12:23:01,795 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 12:23:01,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:23:01 BoogieIcfgContainer [2019-11-21 12:23:01,797 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 12:23:01,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 12:23:01,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 12:23:01,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 12:23:01,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:22:59" (1/3) ... [2019-11-21 12:23:01,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7f87ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:23:01, skipping insertion in model container [2019-11-21 12:23:01,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:23:00" (2/3) ... [2019-11-21 12:23:01,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7f87ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:23:01, skipping insertion in model container [2019-11-21 12:23:01,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:23:01" (3/3) ... [2019-11-21 12:23:01,811 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test6.i [2019-11-21 12:23:01,821 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 12:23:01,830 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 83 error locations. [2019-11-21 12:23:01,843 INFO L249 AbstractCegarLoop]: Starting to check reachability of 83 error locations. [2019-11-21 12:23:01,870 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 12:23:01,871 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 12:23:01,872 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 12:23:01,872 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 12:23:01,872 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 12:23:01,872 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 12:23:01,872 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 12:23:01,873 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 12:23:01,900 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2019-11-21 12:23:01,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 12:23:01,908 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:23:01,909 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:23:01,910 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:23:01,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:23:01,916 INFO L82 PathProgramCache]: Analyzing trace with hash 34848336, now seen corresponding path program 1 times [2019-11-21 12:23:01,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:23:01,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1418608671] [2019-11-21 12:23:01,927 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 12:23:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:23:02,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:23:02,283 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:23:02,346 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 12:23:02,349 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:23:02,456 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 12:23:02,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1418608671] [2019-11-21 12:23:02,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:23:02,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 12:23:02,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108081059] [2019-11-21 12:23:02,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:23:02,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:23:02,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:23:02,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:23:02,483 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 5 states. [2019-11-21 12:23:02,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:23:02,569 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2019-11-21 12:23:02,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:23:02,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-21 12:23:02,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:23:02,584 INFO L225 Difference]: With dead ends: 85 [2019-11-21 12:23:02,585 INFO L226 Difference]: Without dead ends: 82 [2019-11-21 12:23:02,587 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 12:23:02,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-11-21 12:23:02,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 65. [2019-11-21 12:23:02,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-11-21 12:23:02,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2019-11-21 12:23:02,638 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 20 [2019-11-21 12:23:02,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:23:02,638 INFO L462 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2019-11-21 12:23:02,639 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:23:02,639 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2019-11-21 12:23:02,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 12:23:02,640 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:23:02,640 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:23:02,849 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:23:02,850 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:23:02,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:23:02,850 INFO L82 PathProgramCache]: Analyzing trace with hash -161665169, now seen corresponding path program 1 times [2019-11-21 12:23:02,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:23:02,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1767232999] [2019-11-21 12:23:02,851 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 12:23:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:23:03,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-21 12:23:03,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:23:03,271 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 12:23:03,272 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 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 12:23:03,273 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:03,308 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-21 12:23:03,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:03,314 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 12:23:03,314 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-21 12:23:03,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:03,347 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-21 12:23:03,348 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:03,352 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:23:03,352 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:23:03,352 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-21 12:23:03,365 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 12:23:03,368 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:23:03,442 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:23:03,449 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2019-11-21 12:23:03,449 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:03,455 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:23:03,456 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:23:03,456 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:12 [2019-11-21 12:23:03,479 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 12:23:03,479 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1767232999] [2019-11-21 12:23:03,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:23:03,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-21 12:23:03,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119520310] [2019-11-21 12:23:03,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:23:03,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:23:03,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:23:03,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:23:03,483 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 5 states. [2019-11-21 12:23:03,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:23:03,713 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2019-11-21 12:23:03,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:23:03,714 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-21 12:23:03,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:23:03,717 INFO L225 Difference]: With dead ends: 108 [2019-11-21 12:23:03,717 INFO L226 Difference]: Without dead ends: 105 [2019-11-21 12:23:03,718 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:23:03,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-11-21 12:23:03,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 83. [2019-11-21 12:23:03,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-11-21 12:23:03,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 96 transitions. [2019-11-21 12:23:03,732 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 96 transitions. Word has length 20 [2019-11-21 12:23:03,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:23:03,732 INFO L462 AbstractCegarLoop]: Abstraction has 83 states and 96 transitions. [2019-11-21 12:23:03,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:23:03,733 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 96 transitions. [2019-11-21 12:23:03,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-21 12:23:03,734 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:23:03,735 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:23:03,946 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:23:03,948 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:23:03,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:23:03,949 INFO L82 PathProgramCache]: Analyzing trace with hash -161665168, now seen corresponding path program 1 times [2019-11-21 12:23:03,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:23:03,950 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [172548826] [2019-11-21 12:23:03,950 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 12:23:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:23:04,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-21 12:23:04,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:23:04,300 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:23:04,301 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 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-21 12:23:04,301 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:04,345 INFO L567 ElimStorePlain]: treesize reduction 10, result has 64.3 percent of original size [2019-11-21 12:23:04,346 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:23:04,347 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:9 [2019-11-21 12:23:04,373 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-21 12:23:04,373 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:04,380 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:23:04,380 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:23:04,380 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:7 [2019-11-21 12:23:04,401 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 12:23:04,402 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:23:04,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-11-21 12:23:04,567 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2019-11-21 12:23:04,568 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:23:04,598 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:23:04,599 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:23:04,599 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:34, output treesize:32 [2019-11-21 12:23:04,686 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 12:23:04,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [172548826] [2019-11-21 12:23:04,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:23:04,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-21 12:23:04,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710450460] [2019-11-21 12:23:04,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:23:04,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:23:04,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:23:04,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:23:04,691 INFO L87 Difference]: Start difference. First operand 83 states and 96 transitions. Second operand 6 states. [2019-11-21 12:23:04,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:23:04,958 INFO L93 Difference]: Finished difference Result 120 states and 128 transitions. [2019-11-21 12:23:04,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:23:04,959 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-21 12:23:04,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:23:04,961 INFO L225 Difference]: With dead ends: 120 [2019-11-21 12:23:04,962 INFO L226 Difference]: Without dead ends: 119 [2019-11-21 12:23:04,963 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:23:04,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-11-21 12:23:04,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 104. [2019-11-21 12:23:04,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-21 12:23:04,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 124 transitions. [2019-11-21 12:23:04,988 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 124 transitions. Word has length 20 [2019-11-21 12:23:04,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:23:04,989 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 124 transitions. [2019-11-21 12:23:04,989 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:23:04,990 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 124 transitions. [2019-11-21 12:23:04,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 12:23:04,991 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:23:04,991 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:23:05,197 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:23:05,199 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:23:05,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:23:05,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1491224129, now seen corresponding path program 1 times [2019-11-21 12:23:05,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:23:05,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2105110401] [2019-11-21 12:23:05,201 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 12:23:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:23:05,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:23:05,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:23:05,452 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 12:23:05,453 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:23:05,502 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 12:23:05,502 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2105110401] [2019-11-21 12:23:05,502 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:23:05,503 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 12:23:05,503 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250372480] [2019-11-21 12:23:05,503 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:23:05,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:23:05,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:23:05,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:23:05,504 INFO L87 Difference]: Start difference. First operand 104 states and 124 transitions. Second operand 5 states. [2019-11-21 12:23:05,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:23:05,540 INFO L93 Difference]: Finished difference Result 103 states and 122 transitions. [2019-11-21 12:23:05,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:23:05,544 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 12:23:05,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:23:05,546 INFO L225 Difference]: With dead ends: 103 [2019-11-21 12:23:05,546 INFO L226 Difference]: Without dead ends: 103 [2019-11-21 12:23:05,546 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 12:23:05,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-21 12:23:05,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2019-11-21 12:23:05,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-21 12:23:05,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 122 transitions. [2019-11-21 12:23:05,568 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 122 transitions. Word has length 22 [2019-11-21 12:23:05,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:23:05,569 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 122 transitions. [2019-11-21 12:23:05,569 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:23:05,569 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 122 transitions. [2019-11-21 12:23:05,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 12:23:05,570 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:23:05,570 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:23:05,773 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:23:05,774 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:23:05,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:23:05,775 INFO L82 PathProgramCache]: Analyzing trace with hash -741370712, now seen corresponding path program 1 times [2019-11-21 12:23:05,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:23:05,776 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1309584343] [2019-11-21 12:23:05,776 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 12:23:06,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:23:06,036 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:23:06,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:23:06,085 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 12:23:06,088 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:23:06,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:23:06,180 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1309584343] [2019-11-21 12:23:06,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:23:06,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-21 12:23:06,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558845327] [2019-11-21 12:23:06,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 12:23:06,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:23:06,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 12:23:06,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-21 12:23:06,182 INFO L87 Difference]: Start difference. First operand 103 states and 122 transitions. Second operand 10 states. [2019-11-21 12:23:06,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:23:06,258 INFO L93 Difference]: Finished difference Result 113 states and 130 transitions. [2019-11-21 12:23:06,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 12:23:06,261 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2019-11-21 12:23:06,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:23:06,263 INFO L225 Difference]: With dead ends: 113 [2019-11-21 12:23:06,263 INFO L226 Difference]: Without dead ends: 109 [2019-11-21 12:23:06,263 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-11-21 12:23:06,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-21 12:23:06,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 103. [2019-11-21 12:23:06,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-21 12:23:06,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 119 transitions. [2019-11-21 12:23:06,273 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 119 transitions. Word has length 22 [2019-11-21 12:23:06,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:23:06,273 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 119 transitions. [2019-11-21 12:23:06,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 12:23:06,273 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 119 transitions. [2019-11-21 12:23:06,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:23:06,274 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:23:06,275 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:23:06,478 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:23:06,479 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:23:06,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:23:06,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1016692699, now seen corresponding path program 1 times [2019-11-21 12:23:06,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:23:06,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [192396746] [2019-11-21 12:23:06,481 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 12:23:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:23:06,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:23:06,760 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:23:06,823 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 12:23:06,823 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:23:06,912 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 12:23:06,912 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [192396746] [2019-11-21 12:23:06,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:23:06,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-21 12:23:06,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789391756] [2019-11-21 12:23:06,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 12:23:06,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:23:06,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 12:23:06,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:23:06,914 INFO L87 Difference]: Start difference. First operand 103 states and 119 transitions. Second operand 9 states. [2019-11-21 12:23:07,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:23:07,080 INFO L93 Difference]: Finished difference Result 102 states and 117 transitions. [2019-11-21 12:23:07,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:23:07,081 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2019-11-21 12:23:07,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:23:07,082 INFO L225 Difference]: With dead ends: 102 [2019-11-21 12:23:07,082 INFO L226 Difference]: Without dead ends: 102 [2019-11-21 12:23:07,083 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 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 12:23:07,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-21 12:23:07,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-11-21 12:23:07,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-21 12:23:07,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 117 transitions. [2019-11-21 12:23:07,098 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 117 transitions. Word has length 23 [2019-11-21 12:23:07,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:23:07,099 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 117 transitions. [2019-11-21 12:23:07,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 12:23:07,099 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 117 transitions. [2019-11-21 12:23:07,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 12:23:07,100 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:23:07,101 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:23:07,304 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:23:07,305 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:23:07,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:23:07,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1452703041, now seen corresponding path program 1 times [2019-11-21 12:23:07,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:23:07,307 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [434152618] [2019-11-21 12:23:07,307 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 12:23:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:23:07,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:23:07,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:23:07,584 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 12:23:07,584 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:07,587 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:23:07,587 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:23:07,587 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:23:07,640 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 12:23:07,641 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:23:07,698 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 12:23:07,699 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [434152618] [2019-11-21 12:23:07,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:23:07,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2019-11-21 12:23:07,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349619225] [2019-11-21 12:23:07,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:23:07,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:23:07,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:23:07,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:23:07,701 INFO L87 Difference]: Start difference. First operand 102 states and 117 transitions. Second operand 6 states. [2019-11-21 12:23:07,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:23:07,928 INFO L93 Difference]: Finished difference Result 105 states and 116 transitions. [2019-11-21 12:23:07,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:23:07,928 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-21 12:23:07,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:23:07,930 INFO L225 Difference]: With dead ends: 105 [2019-11-21 12:23:07,930 INFO L226 Difference]: Without dead ends: 105 [2019-11-21 12:23:07,931 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:23:07,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-11-21 12:23:07,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 102. [2019-11-21 12:23:07,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-21 12:23:07,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2019-11-21 12:23:07,939 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 24 [2019-11-21 12:23:07,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:23:07,939 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2019-11-21 12:23:07,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:23:07,940 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2019-11-21 12:23:07,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 12:23:07,941 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:23:07,941 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:23:08,144 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:23:08,145 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:23:08,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:23:08,146 INFO L82 PathProgramCache]: Analyzing trace with hash 947144416, now seen corresponding path program 1 times [2019-11-21 12:23:08,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:23:08,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [165670747] [2019-11-21 12:23:08,148 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 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 12:23:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:23:08,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:23:08,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:23:08,445 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 12:23:08,446 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:23:08,526 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 12:23:08,527 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [165670747] [2019-11-21 12:23:08,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:23:08,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-21 12:23:08,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287603836] [2019-11-21 12:23:08,528 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:23:08,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:23:08,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:23:08,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:23:08,529 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand 6 states. [2019-11-21 12:23:08,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:23:08,582 INFO L93 Difference]: Finished difference Result 97 states and 108 transitions. [2019-11-21 12:23:08,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:23:08,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-21 12:23:08,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:23:08,584 INFO L225 Difference]: With dead ends: 97 [2019-11-21 12:23:08,584 INFO L226 Difference]: Without dead ends: 96 [2019-11-21 12:23:08,585 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:23:08,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-11-21 12:23:08,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2019-11-21 12:23:08,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-11-21 12:23:08,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 106 transitions. [2019-11-21 12:23:08,590 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 106 transitions. Word has length 24 [2019-11-21 12:23:08,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:23:08,591 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 106 transitions. [2019-11-21 12:23:08,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:23:08,591 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 106 transitions. [2019-11-21 12:23:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 12:23:08,592 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:23:08,592 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:23:08,795 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:23:08,796 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:23:08,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:23:08,796 INFO L82 PathProgramCache]: Analyzing trace with hash -2127612171, now seen corresponding path program 1 times [2019-11-21 12:23:08,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:23:08,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [68802514] [2019-11-21 12:23:08,797 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 12:23:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:23:09,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 12:23:09,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:23:09,122 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 12:23:09,123 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 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 12:23:09,124 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:09,172 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-21 12:23:09,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:09,175 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 12:23:09,176 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-21 12:23:09,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:09,283 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:23:09,284 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 12:23:09,285 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:09,309 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 12:23:09,311 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 12:23:09,312 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 12:23:09,466 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 12:23:09,467 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:23:11,831 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 12:23:11,831 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [68802514] [2019-11-21 12:23:11,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:23:11,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 13 [2019-11-21 12:23:11,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375395436] [2019-11-21 12:23:11,832 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 12:23:11,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:23:11,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 12:23:11,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=146, Unknown=1, NotChecked=0, Total=182 [2019-11-21 12:23:11,833 INFO L87 Difference]: Start difference. First operand 94 states and 106 transitions. Second operand 14 states. [2019-11-21 12:23:20,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:23:20,815 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2019-11-21 12:23:20,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 12:23:20,817 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2019-11-21 12:23:20,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:23:20,818 INFO L225 Difference]: With dead ends: 99 [2019-11-21 12:23:20,818 INFO L226 Difference]: Without dead ends: 99 [2019-11-21 12:23:20,819 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 38 SyntacticMatches, 6 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=98, Invalid=281, Unknown=1, NotChecked=0, Total=380 [2019-11-21 12:23:20,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-11-21 12:23:20,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 93. [2019-11-21 12:23:20,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-11-21 12:23:20,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 104 transitions. [2019-11-21 12:23:20,824 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 104 transitions. Word has length 28 [2019-11-21 12:23:20,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:23:20,825 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 104 transitions. [2019-11-21 12:23:20,825 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 12:23:20,825 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 104 transitions. [2019-11-21 12:23:20,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 12:23:20,826 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:23:20,826 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:23:21,029 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:23:21,030 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:23:21,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:23:21,030 INFO L82 PathProgramCache]: Analyzing trace with hash -2127612170, now seen corresponding path program 1 times [2019-11-21 12:23:21,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:23:21,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1131405087] [2019-11-21 12:23:21,031 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 12:23:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:23:21,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-21 12:23:21,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:23:21,427 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 12:23:21,428 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 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 12:23:21,428 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:21,473 INFO L567 ElimStorePlain]: treesize reduction 10, result has 77.8 percent of original size [2019-11-21 12:23:21,499 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:23:21,499 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 1 case distinctions, treesize of input 9 treesize of output 25 [2019-11-21 12:23:21,500 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:21,559 INFO L567 ElimStorePlain]: treesize reduction 10, result has 80.0 percent of original size [2019-11-21 12:23:21,560 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:23:21,560 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:21,564 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:23:21,564 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:40 [2019-11-21 12:23:21,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:23:21,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:21,587 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:23:21,588 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:21,608 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:23:21,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:21,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:23:21,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:21,648 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:23:21,652 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:21,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:21,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:23:21,823 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2019-11-21 12:23:23,949 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:23,997 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:23:23,998 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 36 [2019-11-21 12:23:23,999 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:24,066 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:23:24,067 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 52 [2019-11-21 12:23:24,068 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:24,076 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 12:23:24,077 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 32 [2019-11-21 12:23:24,078 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:24,173 INFO L567 ElimStorePlain]: treesize reduction 29, result has 42.0 percent of original size [2019-11-21 12:23:24,177 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 12:23:24,178 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-11-21 12:23:24,190 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:23:24,191 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:23:24,191 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:103, output treesize:11 [2019-11-21 12:23:24,322 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 12:23:24,323 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:23:24,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:26,600 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:23:26,600 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:23:26,601 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:26,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:26,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:23:26,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:26,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:23:27,997 WARN L192 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-21 12:23:28,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:23:32,899 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 12:23:32,900 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1131405087] [2019-11-21 12:23:32,900 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:23:32,900 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 14 [2019-11-21 12:23:32,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090627705] [2019-11-21 12:23:32,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-21 12:23:32,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:23:32,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-21 12:23:32,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=169, Unknown=2, NotChecked=0, Total=210 [2019-11-21 12:23:32,902 INFO L87 Difference]: Start difference. First operand 93 states and 104 transitions. Second operand 15 states. [2019-11-21 12:23:41,695 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-11-21 12:24:10,540 WARN L192 SmtUtils]: Spent 16.17 s on a formula simplification that was a NOOP. DAG size: 67 [2019-11-21 12:24:14,388 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-11-21 12:24:49,535 WARN L192 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 21 [2019-11-21 12:25:04,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:25:04,331 INFO L93 Difference]: Finished difference Result 97 states and 102 transitions. [2019-11-21 12:25:04,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-21 12:25:04,333 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 28 [2019-11-21 12:25:04,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:25:04,334 INFO L225 Difference]: With dead ends: 97 [2019-11-21 12:25:04,334 INFO L226 Difference]: Without dead ends: 97 [2019-11-21 12:25:04,335 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 37 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 50.1s TimeCoverageRelationStatistics Valid=139, Invalid=452, Unknown=9, NotChecked=0, Total=600 [2019-11-21 12:25:04,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-21 12:25:04,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2019-11-21 12:25:04,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-21 12:25:04,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 102 transitions. [2019-11-21 12:25:04,339 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 102 transitions. Word has length 28 [2019-11-21 12:25:04,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:25:04,340 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 102 transitions. [2019-11-21 12:25:04,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-21 12:25:04,340 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 102 transitions. [2019-11-21 12:25:04,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-21 12:25:04,341 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:25:04,341 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:25:04,544 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:25:04,544 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, disconnect_6Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err2ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_6Err1REQUIRES_VIOLATION, disconnect_6Err0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, probe1_6Err1REQUIRES_VIOLATION, probe1_6Err0REQUIRES_VIOLATION, probe1_6Err3ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err2ASSERT_VIOLATIONMEMORY_FREE, probe1_6Err4ASSERT_VIOLATIONMEMORY_FREE]=== [2019-11-21 12:25:04,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:25:04,545 INFO L82 PathProgramCache]: Analyzing trace with hash 759054628, now seen corresponding path program 1 times [2019-11-21 12:25:04,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:25:04,545 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1208600628] [2019-11-21 12:25:04,546 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:25:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:25:04,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 12:25:04,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:25:04,871 INFO L343 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-11-21 12:25:04,872 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 2 case distinctions, treesize of input 12 treesize of output 33 [2019-11-21 12:25:04,873 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:25:04,900 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-11-21 12:25:04,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:25:04,902 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 12:25:04,902 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:23 [2019-11-21 12:25:04,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:25:04,925 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-11-21 12:25:04,926 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:25:04,928 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:25:04,928 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:25:04,928 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-21 12:25:05,043 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:25:05,057 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 16 treesize of output 13 [2019-11-21 12:25:05,058 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:25:05,076 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:25:05,080 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2019-11-21 12:25:05,080 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:25:05,090 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:25:05,091 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-11-21 12:25:05,091 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:16 [2019-11-21 12:25:07,242 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:25:07,243 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 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 12:25:07,244 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:25:07,270 INFO L567 ElimStorePlain]: treesize reduction 18, result has 45.5 percent of original size [2019-11-21 12:25:07,271 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 12:25:07,271 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:15 [2019-11-21 12:25:07,296 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 12:25:07,297 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:25:13,649 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:25:13,650 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:25:13,651 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:25:13,654 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-21 12:25:13,882 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:25:13,883 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 12:25:13,892 INFO L168 Benchmark]: Toolchain (without parser) took 134825.70 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 274.7 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 114.6 MB. Max. memory is 11.5 GB. [2019-11-21 12:25:13,892 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:25:13,893 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1047.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 955.0 MB in the beginning and 1.0 GB in the end (delta: -75.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-11-21 12:25:13,893 INFO L168 Benchmark]: Boogie Preprocessor took 113.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-21 12:25:13,894 INFO L168 Benchmark]: RCFGBuilder took 1566.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 908.8 MB in the end (delta: 115.1 MB). Peak memory consumption was 115.1 MB. Max. memory is 11.5 GB. [2019-11-21 12:25:13,895 INFO L168 Benchmark]: TraceAbstraction took 132089.47 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 908.8 MB in the beginning and 1.1 GB in the end (delta: -206.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:25:13,897 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 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 1047.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 955.0 MB in the beginning and 1.0 GB in the end (delta: -75.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 113.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1566.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 908.8 MB in the end (delta: 115.1 MB). Peak memory consumption was 115.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 132089.47 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 185.1 MB). Free memory was 908.8 MB in the beginning and 1.1 GB in the end (delta: -206.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...