./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 701f399f Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 46ca4cc321f66643bb303146077f836b6b81d33d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-701f399 [2019-11-22 10:11:01,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 10:11:01,890 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 10:11:01,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 10:11:01,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 10:11:01,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 10:11:01,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 10:11:01,923 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 10:11:01,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 10:11:01,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 10:11:01,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 10:11:01,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 10:11:01,935 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 10:11:01,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 10:11:01,939 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 10:11:01,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 10:11:01,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 10:11:01,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 10:11:01,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 10:11:01,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 10:11:01,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 10:11:01,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 10:11:01,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 10:11:01,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 10:11:01,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 10:11:01,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 10:11:01,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 10:11:01,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 10:11:01,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 10:11:01,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 10:11:01,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 10:11:01,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 10:11:01,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 10:11:01,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 10:11:01,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 10:11:01,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 10:11:01,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 10:11:01,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 10:11:01,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 10:11:01,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 10:11:01,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 10:11:01,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-22 10:11:02,016 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 10:11:02,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 10:11:02,021 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 10:11:02,021 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 10:11:02,021 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 10:11:02,022 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 10:11:02,022 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-22 10:11:02,022 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 10:11:02,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 10:11:02,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-22 10:11:02,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 10:11:02,025 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 10:11:02,025 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 10:11:02,025 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 10:11:02,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 10:11:02,026 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 10:11:02,026 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 10:11:02,026 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 10:11:02,026 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-22 10:11:02,027 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 10:11:02,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 10:11:02,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 10:11:02,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 10:11:02,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 10:11:02,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 10:11:02,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 10:11:02,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 10:11:02,029 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 10:11:02,030 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 10:11:02,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 10:11:02,030 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46ca4cc321f66643bb303146077f836b6b81d33d [2019-11-22 10:11:02,398 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 10:11:02,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 10:11:02,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 10:11:02,426 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 10:11:02,426 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 10:11:02,428 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-22 10:11:02,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c9bf1e92/06d6c58f58ac4d07966b21d2852c1650/FLAG4f1cc8ee9 [2019-11-22 10:11:03,065 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 10:11:03,070 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-22 10:11:03,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c9bf1e92/06d6c58f58ac4d07966b21d2852c1650/FLAG4f1cc8ee9 [2019-11-22 10:11:03,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c9bf1e92/06d6c58f58ac4d07966b21d2852c1650 [2019-11-22 10:11:03,395 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 10:11:03,396 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 10:11:03,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 10:11:03,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 10:11:03,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 10:11:03,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:11:03" (1/1) ... [2019-11-22 10:11:03,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2288bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:11:03, skipping insertion in model container [2019-11-22 10:11:03,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:11:03" (1/1) ... [2019-11-22 10:11:03,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 10:11:03,490 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 10:11:04,041 INFO L965 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 [2019-11-22 10:11:04,041 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-22 10:11:04,042 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:11:04,071 INFO L965 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 [2019-11-22 10:11:04,072 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-22 10:11:04,073 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:11:04,078 INFO L965 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 [2019-11-22 10:11:04,078 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-22 10:11:04,079 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:11:04,083 INFO L965 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 [2019-11-22 10:11:04,084 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-22 10:11:04,084 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:11:04,122 INFO L965 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 [2019-11-22 10:11:04,123 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-22 10:11:04,123 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:11:04,138 INFO L965 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 [2019-11-22 10:11:04,139 INFO L968 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [759] [2019-11-22 10:11:04,139 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:11:04,140 INFO L965 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 [2019-11-22 10:11:04,140 INFO L968 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [761] [2019-11-22 10:11:04,140 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:11:04,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 10:11:04,182 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 10:11:04,193 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 10:11:04,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 10:11:04,271 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 10:11:04,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 10:11:04,443 INFO L205 MainTranslator]: Completed translation [2019-11-22 10:11:04,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:11:04 WrapperNode [2019-11-22 10:11:04,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 10:11:04,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 10:11:04,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 10:11:04,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 10:11:04,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:11:04" (1/1) ... [2019-11-22 10:11:04,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:11:04" (1/1) ... [2019-11-22 10:11:04,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:11:04" (1/1) ... [2019-11-22 10:11:04,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:11:04" (1/1) ... [2019-11-22 10:11:04,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:11:04" (1/1) ... [2019-11-22 10:11:04,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:11:04" (1/1) ... [2019-11-22 10:11:04,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:11:04" (1/1) ... [2019-11-22 10:11:04,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 10:11:04,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 10:11:04,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 10:11:04,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 10:11:04,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:11:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 10:11:04,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 10:11:04,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 10:11:04,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 10:11:04,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 10:11:04,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 10:11:04,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 10:11:04,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 10:11:04,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 10:11:04,631 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 10:11:04,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 10:11:04,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 10:11:04,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 10:11:04,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 10:11:04,632 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 10:11:04,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 10:11:04,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 10:11:04,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 10:11:04,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 10:11:04,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 10:11:04,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 10:11:04,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 10:11:04,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 10:11:04,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 10:11:04,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 10:11:04,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 10:11:04,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 10:11:04,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 10:11:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 10:11:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 10:11:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 10:11:04,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 10:11:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 10:11:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 10:11:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 10:11:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 10:11:04,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 10:11:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 10:11:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 10:11:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 10:11:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 10:11:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 10:11:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 10:11:04,639 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 10:11:04,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 10:11:04,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 10:11:04,639 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 10:11:04,640 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 10:11:04,640 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 10:11:04,640 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 10:11:04,640 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 10:11:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 10:11:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 10:11:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 10:11:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 10:11:04,641 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 10:11:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 10:11:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 10:11:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 10:11:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 10:11:04,642 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 10:11:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 10:11:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 10:11:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 10:11:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 10:11:04,643 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 10:11:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 10:11:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 10:11:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 10:11:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 10:11:04,644 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 10:11:04,645 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 10:11:04,645 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 10:11:04,645 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 10:11:04,645 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 10:11:04,645 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 10:11:04,646 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 10:11:04,646 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 10:11:04,646 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 10:11:04,646 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 10:11:04,646 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 10:11:04,646 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 10:11:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 10:11:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 10:11:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 10:11:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 10:11:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 10:11:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 10:11:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 10:11:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 10:11:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 10:11:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 10:11:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 10:11:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 10:11:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 10:11:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 10:11:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 10:11:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 10:11:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 10:11:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 10:11:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 10:11:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 10:11:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 10:11:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 10:11:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 10:11:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 10:11:04,652 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 10:11:04,656 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 10:11:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 10:11:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 10:11:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 10:11:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 10:11:04,657 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 10:11:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 10:11:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 10:11:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 10:11:04,658 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 10:11:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 10:11:04,659 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 10:11:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 10:11:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 10:11:04,666 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 10:11:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 10:11:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 10:11:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 10:11:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 10:11:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 10:11:04,667 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 10:11:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 10:11:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 10:11:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 10:11:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 10:11:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 10:11:04,668 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 10:11:04,669 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 10:11:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 10:11:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 10:11:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 10:11:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 10:11:04,670 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 10:11:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 10:11:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 10:11:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 10:11:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 10:11:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 10:11:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 10:11:04,671 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 10:11:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 10:11:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 10:11:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 10:11:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 10:11:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 10:11:04,672 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 10:11:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 10:11:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 10:11:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 10:11:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 10:11:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 10:11:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 10:11:04,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 10:11:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 10:11:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 10:11:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 10:11:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 10:11:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 10:11:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 10:11:04,674 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 10:11:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 10:11:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 10:11:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 10:11:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 10:11:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 10:11:04,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 10:11:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 10:11:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 10:11:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 10:11:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 10:11:04,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 10:11:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 10:11:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 10:11:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 10:11:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 10:11:04,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 10:11:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 10:11:04,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 10:11:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 10:11:04,679 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 10:11:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 10:11:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 10:11:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 10:11:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 10:11:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 10:11:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 10:11:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 10:11:04,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 10:11:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 10:11:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 10:11:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 10:11:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 10:11:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 10:11:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 10:11:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 10:11:04,681 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 10:11:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 10:11:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 10:11:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 10:11:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 10:11:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 10:11:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 10:11:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 10:11:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 10:11:04,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 10:11:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 10:11:04,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 10:11:05,342 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 10:11:05,719 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 10:11:06,115 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 10:11:06,115 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-22 10:11:06,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:11:06 BoogieIcfgContainer [2019-11-22 10:11:06,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 10:11:06,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 10:11:06,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 10:11:06,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 10:11:06,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:11:03" (1/3) ... [2019-11-22 10:11:06,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99f7147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:11:06, skipping insertion in model container [2019-11-22 10:11:06,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:11:04" (2/3) ... [2019-11-22 10:11:06,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99f7147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:11:06, skipping insertion in model container [2019-11-22 10:11:06,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:11:06" (3/3) ... [2019-11-22 10:11:06,130 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2019-11-22 10:11:06,142 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 10:11:06,152 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-22 10:11:06,166 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-22 10:11:06,193 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 10:11:06,195 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 10:11:06,200 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 10:11:06,200 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 10:11:06,201 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 10:11:06,201 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 10:11:06,201 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 10:11:06,201 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 10:11:06,228 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-11-22 10:11:06,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 10:11:06,240 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:06,241 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:06,242 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:06,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:06,249 INFO L82 PathProgramCache]: Analyzing trace with hash -2025190552, now seen corresponding path program 1 times [2019-11-22 10:11:06,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:06,265 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1732368196] [2019-11-22 10:11:06,265 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 [2019-11-22 10:11:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:11:06,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 10:11:06,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:11:06,676 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:06,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:11:06,788 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1732368196] [2019-11-22 10:11:06,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:11:06,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 10:11:06,790 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430912559] [2019-11-22 10:11:06,795 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 10:11:06,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:11:06,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 10:11:06,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:11:06,809 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 5 states. [2019-11-22 10:11:06,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:11:06,876 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-11-22 10:11:06,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 10:11:06,878 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 10:11:06,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:11:06,888 INFO L225 Difference]: With dead ends: 53 [2019-11-22 10:11:06,889 INFO L226 Difference]: Without dead ends: 50 [2019-11-22 10:11:06,891 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:11:06,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-22 10:11:06,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2019-11-22 10:11:06,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-22 10:11:06,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-22 10:11:06,937 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2019-11-22 10:11:06,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:11:06,938 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-22 10:11:06,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 10:11:06,938 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-22 10:11:06,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 10:11:06,940 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:06,940 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:07,145 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:07,146 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:07,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:07,147 INFO L82 PathProgramCache]: Analyzing trace with hash -282380217, now seen corresponding path program 1 times [2019-11-22 10:11:07,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:07,148 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1372768868] [2019-11-22 10:11:07,149 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 [2019-11-22 10:11:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:11:07,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 10:11:07,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:07,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:11:07,383 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:07,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:11:07,436 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1372768868] [2019-11-22 10:11:07,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:11:07,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 10:11:07,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329047668] [2019-11-22 10:11:07,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 10:11:07,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:11:07,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 10:11:07,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 10:11:07,439 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 3 states. [2019-11-22 10:11:07,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:11:07,496 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-22 10:11:07,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 10:11:07,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-22 10:11:07,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:11:07,498 INFO L225 Difference]: With dead ends: 46 [2019-11-22 10:11:07,499 INFO L226 Difference]: Without dead ends: 43 [2019-11-22 10:11:07,500 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 10:11:07,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-22 10:11:07,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2019-11-22 10:11:07,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-22 10:11:07,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-22 10:11:07,508 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2019-11-22 10:11:07,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:11:07,509 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-22 10:11:07,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 10:11:07,509 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-22 10:11:07,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-22 10:11:07,510 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:07,511 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:07,714 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:07,715 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:07,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:07,716 INFO L82 PathProgramCache]: Analyzing trace with hash -2034469669, now seen corresponding path program 1 times [2019-11-22 10:11:07,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:07,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [72806549] [2019-11-22 10:11:07,718 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 [2019-11-22 10:11:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:11:07,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 10:11:07,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:07,970 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:08,040 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:08,040 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [72806549] [2019-11-22 10:11:08,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:11:08,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 10:11:08,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500011302] [2019-11-22 10:11:08,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 10:11:08,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:11:08,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 10:11:08,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:11:08,042 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2019-11-22 10:11:08,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:11:08,065 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-22 10:11:08,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 10:11:08,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-22 10:11:08,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:11:08,069 INFO L225 Difference]: With dead ends: 30 [2019-11-22 10:11:08,069 INFO L226 Difference]: Without dead ends: 30 [2019-11-22 10:11:08,070 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 [2019-11-22 10:11:08,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-22 10:11:08,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-22 10:11:08,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-22 10:11:08,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-22 10:11:08,076 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2019-11-22 10:11:08,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:11:08,077 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-22 10:11:08,077 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 10:11:08,077 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-22 10:11:08,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 10:11:08,078 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:08,078 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:08,279 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:08,283 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:08,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:08,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1355950095, now seen corresponding path program 1 times [2019-11-22 10:11:08,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:08,284 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1209427234] [2019-11-22 10:11:08,285 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 [2019-11-22 10:11:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:11:08,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 10:11:08,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:08,531 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:08,531 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:08,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:08,581 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1209427234] [2019-11-22 10:11:08,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:11:08,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 10:11:08,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224547680] [2019-11-22 10:11:08,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 10:11:08,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:11:08,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 10:11:08,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:11:08,583 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 5 states. [2019-11-22 10:11:08,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:11:08,670 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-22 10:11:08,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 10:11:08,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-22 10:11:08,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:11:08,672 INFO L225 Difference]: With dead ends: 35 [2019-11-22 10:11:08,672 INFO L226 Difference]: Without dead ends: 35 [2019-11-22 10:11:08,672 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:11:08,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-22 10:11:08,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-22 10:11:08,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-22 10:11:08,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-22 10:11:08,679 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 21 [2019-11-22 10:11:08,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:11:08,680 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-22 10:11:08,680 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 10:11:08,680 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-22 10:11:08,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 10:11:08,681 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:08,681 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:08,885 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:08,885 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:08,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:08,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1384579246, now seen corresponding path program 1 times [2019-11-22 10:11:08,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:08,886 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2132534994] [2019-11-22 10:11:08,887 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 [2019-11-22 10:11:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:11:09,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 10:11:09,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:09,208 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:11:09,209 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:09,318 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:09,318 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2132534994] [2019-11-22 10:11:09,318 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 10:11:09,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2019-11-22 10:11:09,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078554171] [2019-11-22 10:11:09,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 10:11:09,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:11:09,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 10:11:09,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-22 10:11:09,320 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 6 states. [2019-11-22 10:11:09,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:11:09,482 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2019-11-22 10:11:09,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 10:11:09,484 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-11-22 10:11:09,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:11:09,485 INFO L225 Difference]: With dead ends: 66 [2019-11-22 10:11:09,486 INFO L226 Difference]: Without dead ends: 66 [2019-11-22 10:11:09,487 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-22 10:11:09,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-22 10:11:09,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 46. [2019-11-22 10:11:09,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-22 10:11:09,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2019-11-22 10:11:09,497 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 21 [2019-11-22 10:11:09,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:11:09,498 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2019-11-22 10:11:09,498 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 10:11:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2019-11-22 10:11:09,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 10:11:09,502 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:09,502 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:09,704 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:09,706 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:09,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:09,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1091176239, now seen corresponding path program 1 times [2019-11-22 10:11:09,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:09,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1874372088] [2019-11-22 10:11:09,708 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 [2019-11-22 10:11:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:11:09,915 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 10:11:09,917 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:09,988 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:09,988 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:10,059 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:10,059 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1874372088] [2019-11-22 10:11:10,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:11:10,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-22 10:11:10,065 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947755327] [2019-11-22 10:11:10,065 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-22 10:11:10,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:11:10,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-22 10:11:10,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-22 10:11:10,066 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 9 states. [2019-11-22 10:11:10,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:11:10,243 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2019-11-22 10:11:10,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-22 10:11:10,244 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-22 10:11:10,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:11:10,245 INFO L225 Difference]: With dead ends: 54 [2019-11-22 10:11:10,245 INFO L226 Difference]: Without dead ends: 54 [2019-11-22 10:11:10,245 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-11-22 10:11:10,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-22 10:11:10,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2019-11-22 10:11:10,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-22 10:11:10,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-22 10:11:10,252 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 21 [2019-11-22 10:11:10,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:11:10,252 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-22 10:11:10,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-22 10:11:10,252 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-22 10:11:10,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-22 10:11:10,253 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:10,253 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:10,465 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:10,466 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:10,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:10,466 INFO L82 PathProgramCache]: Analyzing trace with hash -915219619, now seen corresponding path program 1 times [2019-11-22 10:11:10,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:10,467 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1069324290] [2019-11-22 10:11:10,468 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 [2019-11-22 10:11:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:11:10,713 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 10:11:10,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:10,742 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 [2019-11-22 10:11:10,742 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:11:10,745 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:11:10,745 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 10:11:10,745 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 10:11:10,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:10,764 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:10,802 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:10,802 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1069324290] [2019-11-22 10:11:10,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:11:10,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 10:11:10,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625146819] [2019-11-22 10:11:10,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 10:11:10,803 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:11:10,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 10:11:10,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:11:10,804 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2019-11-22 10:11:10,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:11:10,873 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2019-11-22 10:11:10,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 10:11:10,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-22 10:11:10,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:11:10,875 INFO L225 Difference]: With dead ends: 41 [2019-11-22 10:11:10,876 INFO L226 Difference]: Without dead ends: 41 [2019-11-22 10:11:10,876 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 [2019-11-22 10:11:10,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-22 10:11:10,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2019-11-22 10:11:10,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-22 10:11:10,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2019-11-22 10:11:10,882 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 22 [2019-11-22 10:11:10,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:11:10,882 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2019-11-22 10:11:10,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 10:11:10,882 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2019-11-22 10:11:10,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-22 10:11:10,883 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:10,883 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:11,084 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:11,085 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:11,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:11,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1692963281, now seen corresponding path program 1 times [2019-11-22 10:11:11,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:11,087 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1269308814] [2019-11-22 10:11:11,087 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 [2019-11-22 10:11:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:11:11,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 10:11:11,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:11,337 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:11,337 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:11,372 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1269308814] [2019-11-22 10:11:11,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 10:11:11,372 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-22 10:11:11,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800764024] [2019-11-22 10:11:11,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 10:11:11,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:11:11,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 10:11:11,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:11:11,374 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 5 states. [2019-11-22 10:11:11,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:11:11,386 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2019-11-22 10:11:11,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 10:11:11,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-22 10:11:11,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:11:11,387 INFO L225 Difference]: With dead ends: 36 [2019-11-22 10:11:11,388 INFO L226 Difference]: Without dead ends: 36 [2019-11-22 10:11:11,388 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:11:11,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-22 10:11:11,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-22 10:11:11,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-22 10:11:11,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-11-22 10:11:11,393 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 23 [2019-11-22 10:11:11,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:11:11,393 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-11-22 10:11:11,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 10:11:11,394 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-11-22 10:11:11,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-22 10:11:11,394 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:11,395 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:11,597 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:11,598 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:11,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:11,599 INFO L82 PathProgramCache]: Analyzing trace with hash 942254559, now seen corresponding path program 1 times [2019-11-22 10:11:11,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:11,600 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1872271883] [2019-11-22 10:11:11,600 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 [2019-11-22 10:11:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:11:11,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 10:11:11,842 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:11:11,910 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:11,952 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:11,952 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1872271883] [2019-11-22 10:11:11,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 10:11:11,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2019-11-22 10:11:11,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418877946] [2019-11-22 10:11:11,954 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 10:11:11,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:11:11,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 10:11:11,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-22 10:11:11,954 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 6 states. [2019-11-22 10:11:12,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:11:12,053 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2019-11-22 10:11:12,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 10:11:12,054 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-22 10:11:12,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:11:12,055 INFO L225 Difference]: With dead ends: 35 [2019-11-22 10:11:12,055 INFO L226 Difference]: Without dead ends: 35 [2019-11-22 10:11:12,056 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-22 10:11:12,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-22 10:11:12,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-22 10:11:12,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-22 10:11:12,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2019-11-22 10:11:12,061 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2019-11-22 10:11:12,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:11:12,061 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2019-11-22 10:11:12,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 10:11:12,061 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2019-11-22 10:11:12,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-22 10:11:12,062 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:12,063 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:12,266 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:12,272 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:12,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:12,273 INFO L82 PathProgramCache]: Analyzing trace with hash -854879341, now seen corresponding path program 1 times [2019-11-22 10:11:12,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:12,273 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [536701858] [2019-11-22 10:11:12,274 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 [2019-11-22 10:11:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:11:12,560 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-22 10:11:12,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:12,569 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 [2019-11-22 10:11:12,569 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:11:12,571 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:11:12,571 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 10:11:12,572 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 10:11:12,661 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:11:12,661 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 [2019-11-22 10:11:12,663 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:11:12,725 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-22 10:11:12,725 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 10:11:12,726 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-22 10:11:12,781 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-11-22 10:11:12,782 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:11:12,794 INFO L567 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-11-22 10:11:12,794 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. [2019-11-22 10:11:12,795 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2019-11-22 10:11:12,821 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:11:12,821 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:13,007 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:11:13,008 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [536701858] [2019-11-22 10:11:13,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 10:11:13,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2019-11-22 10:11:13,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399643454] [2019-11-22 10:11:13,009 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-22 10:11:13,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:11:13,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-22 10:11:13,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-22 10:11:13,009 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 10 states. [2019-11-22 10:11:15,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:11:15,270 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2019-11-22 10:11:15,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-22 10:11:15,271 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-11-22 10:11:15,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:11:15,272 INFO L225 Difference]: With dead ends: 50 [2019-11-22 10:11:15,272 INFO L226 Difference]: Without dead ends: 50 [2019-11-22 10:11:15,273 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-22 10:11:15,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-22 10:11:15,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2019-11-22 10:11:15,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-22 10:11:15,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-22 10:11:15,277 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-11-22 10:11:15,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:11:15,278 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-22 10:11:15,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-22 10:11:15,278 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-22 10:11:15,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-22 10:11:15,279 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:15,279 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:15,482 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:15,483 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:15,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:15,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1051392846, now seen corresponding path program 1 times [2019-11-22 10:11:15,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:15,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [701843901] [2019-11-22 10:11:15,485 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 [2019-11-22 10:11:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:11:15,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-22 10:11:15,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:15,743 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 10:11:15,744 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:11:15,748 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:11:15,749 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 10:11:15,749 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-11-22 10:11:15,879 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 [2019-11-22 10:11:15,879 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:11:15,892 INFO L567 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-11-22 10:11:15,892 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 10:11:15,893 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:13 [2019-11-22 10:11:15,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:11:15,913 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:11:16,110 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [701843901] [2019-11-22 10:11:16,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 10:11:16,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-22 10:11:16,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256882944] [2019-11-22 10:11:16,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-22 10:11:16,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:11:16,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-22 10:11:16,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-11-22 10:11:16,112 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 15 states. [2019-11-22 10:11:16,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:11:16,712 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2019-11-22 10:11:16,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-22 10:11:16,713 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2019-11-22 10:11:16,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:11:16,714 INFO L225 Difference]: With dead ends: 53 [2019-11-22 10:11:16,714 INFO L226 Difference]: Without dead ends: 53 [2019-11-22 10:11:16,715 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2019-11-22 10:11:16,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-22 10:11:16,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2019-11-22 10:11:16,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-22 10:11:16,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-22 10:11:16,720 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-11-22 10:11:16,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:11:16,720 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-22 10:11:16,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-22 10:11:16,720 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-22 10:11:16,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-22 10:11:16,721 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:16,721 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:16,924 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:16,925 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:16,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:16,925 INFO L82 PathProgramCache]: Analyzing trace with hash 498430356, now seen corresponding path program 2 times [2019-11-22 10:11:16,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:16,926 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1089717869] [2019-11-22 10:11:16,927 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:17,174 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-22 10:11:17,174 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 10:11:17,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-22 10:11:17,177 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:17,193 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:17,193 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:17,213 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 10:11:17,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1089717869] [2019-11-22 10:11:17,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 10:11:17,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-22 10:11:17,213 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930378344] [2019-11-22 10:11:17,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 10:11:17,214 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:11:17,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 10:11:17,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:11:17,214 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2019-11-22 10:11:17,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:11:17,242 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2019-11-22 10:11:17,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 10:11:17,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-22 10:11:17,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:11:17,245 INFO L225 Difference]: With dead ends: 43 [2019-11-22 10:11:17,245 INFO L226 Difference]: Without dead ends: 43 [2019-11-22 10:11:17,246 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:11:17,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-22 10:11:17,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2019-11-22 10:11:17,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-22 10:11:17,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2019-11-22 10:11:17,251 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2019-11-22 10:11:17,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:11:17,252 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2019-11-22 10:11:17,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 10:11:17,252 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2019-11-22 10:11:17,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-22 10:11:17,252 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:11:17,253 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:11:17,453 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:17,453 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:11:17,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:11:17,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1446021946, now seen corresponding path program 1 times [2019-11-22 10:11:17,454 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:11:17,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1716193500] [2019-11-22 10:11:17,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:11:17,728 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-22 10:11:17,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:11:17,751 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:11:17,752 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-22 10:11:17,753 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:11:17,768 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-22 10:11:17,769 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:11:17,771 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. [2019-11-22 10:11:17,772 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-22 10:11:17,772 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:11:17,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:11:17,789 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:11:17,796 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:11:20,212 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:11:20,354 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-22 10:11:20,354 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:11:20,565 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-11-22 10:11:24,880 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:11:24,882 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-22 10:11:24,888 INFO L168 Benchmark]: Toolchain (without parser) took 21491.12 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 259.0 MB). Free memory was 960.4 MB in the beginning and 884.2 MB in the end (delta: 76.2 MB). Peak memory consumption was 335.2 MB. Max. memory is 11.5 GB. [2019-11-22 10:11:24,888 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 10:11:24,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1046.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 955.0 MB in the beginning and 1.0 GB in the end (delta: -70.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-22 10:11:24,890 INFO L168 Benchmark]: Boogie Preprocessor took 112.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-22 10:11:24,890 INFO L168 Benchmark]: RCFGBuilder took 1560.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 908.9 MB in the end (delta: 109.6 MB). Peak memory consumption was 109.6 MB. Max. memory is 11.5 GB. [2019-11-22 10:11:24,891 INFO L168 Benchmark]: TraceAbstraction took 18764.56 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 908.9 MB in the beginning and 884.2 MB in the end (delta: 24.7 MB). Peak memory consumption was 205.6 MB. Max. memory is 11.5 GB. [2019-11-22 10:11:24,893 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 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 1046.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 955.0 MB in the beginning and 1.0 GB in the end (delta: -70.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 112.59 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1560.59 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 908.9 MB in the end (delta: 109.6 MB). Peak memory consumption was 109.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18764.56 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 908.9 MB in the beginning and 884.2 MB in the end (delta: 24.7 MB). Peak memory consumption was 205.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...