./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.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 902bca7b1502ca5dcb44bb7e7d9bc6d169c57d43 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 13:04:12,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 13:04:12,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 13:04:12,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 13:04:12,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 13:04:12,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 13:04:12,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 13:04:12,055 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 13:04:12,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 13:04:12,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 13:04:12,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 13:04:12,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 13:04:12,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 13:04:12,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 13:04:12,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 13:04:12,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 13:04:12,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 13:04:12,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 13:04:12,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 13:04:12,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 13:04:12,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 13:04:12,093 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 13:04:12,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 13:04:12,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 13:04:12,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 13:04:12,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 13:04:12,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 13:04:12,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 13:04:12,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 13:04:12,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 13:04:12,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 13:04:12,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 13:04:12,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 13:04:12,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 13:04:12,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 13:04:12,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 13:04:12,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 13:04:12,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 13:04:12,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 13:04:12,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 13:04:12,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 13:04:12,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 13:04:12,154 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 13:04:12,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 13:04:12,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 13:04:12,157 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 13:04:12,157 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 13:04:12,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 13:04:12,158 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 13:04:12,159 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 13:04:12,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 13:04:12,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 13:04:12,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 13:04:12,162 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 13:04:12,162 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 13:04:12,162 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 13:04:12,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 13:04:12,163 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 13:04:12,163 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 13:04:12,163 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 13:04:12,163 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 13:04:12,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 13:04:12,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 13:04:12,164 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 13:04:12,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 13:04:12,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 13:04:12,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 13:04:12,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 13:04:12,165 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 13:04:12,166 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 13:04:12,166 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 13:04:12,166 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 -> 902bca7b1502ca5dcb44bb7e7d9bc6d169c57d43 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 13:04:12,509 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 13:04:12,531 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 13:04:12,535 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 13:04:12,537 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 13:04:12,539 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 13:04:12,540 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-21 13:04:12,610 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eded7cdc0/df891d34257b4bd6a32b7aaed76fa607/FLAG32a3b286c [2019-11-21 13:04:13,185 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 13:04:13,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-21 13:04:13,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eded7cdc0/df891d34257b4bd6a32b7aaed76fa607/FLAG32a3b286c [2019-11-21 13:04:13,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eded7cdc0/df891d34257b4bd6a32b7aaed76fa607 [2019-11-21 13:04:13,408 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 13:04:13,410 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 13:04:13,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 13:04:13,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 13:04:13,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 13:04:13,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:04:13" (1/1) ... [2019-11-21 13:04:13,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa48b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:04:13, skipping insertion in model container [2019-11-21 13:04:13,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:04:13" (1/1) ... [2019-11-21 13:04:13,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 13:04:13,473 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 13:04:13,961 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 13:04:13,961 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 13:04:13,962 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:04:13,984 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 13:04:13,985 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 13:04:13,985 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:04:13,989 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 13:04:13,989 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 13:04:13,990 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:04:13,994 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 13:04:13,994 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 13:04:13,994 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:04:14,021 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 13:04:14,022 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 13:04:14,022 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:04:14,031 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 13:04:14,032 INFO L969 CHandler]: at location: C: (struct A17 *)ldv_malloc(sizeof(struct A17)) [767] [2019-11-21 13:04:14,032 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:04:14,038 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 13:04:14,039 INFO L969 CHandler]: at location: C: (struct A17 **)ldv_malloc(sizeof(struct A17*)*len) [789] [2019-11-21 13:04:14,039 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 13:04:14,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 13:04:14,064 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 13:04:14,070 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 13:04:14,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 13:04:14,125 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 13:04:14,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 13:04:14,273 INFO L205 MainTranslator]: Completed translation [2019-11-21 13:04:14,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:04:14 WrapperNode [2019-11-21 13:04:14,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 13:04:14,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 13:04:14,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 13:04:14,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 13:04:14,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:04:14" (1/1) ... [2019-11-21 13:04:14,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:04:14" (1/1) ... [2019-11-21 13:04:14,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:04:14" (1/1) ... [2019-11-21 13:04:14,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:04:14" (1/1) ... [2019-11-21 13:04:14,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:04:14" (1/1) ... [2019-11-21 13:04:14,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:04:14" (1/1) ... [2019-11-21 13:04:14,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:04:14" (1/1) ... [2019-11-21 13:04:14,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 13:04:14,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 13:04:14,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 13:04:14,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 13:04:14,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:04:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 13:04:14,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 13:04:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 13:04:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 13:04:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 13:04:14,491 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 13:04:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 13:04:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 13:04:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 13:04:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 13:04:14,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 13:04:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 13:04:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 13:04:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 13:04:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 13:04:14,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 13:04:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 13:04:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 13:04:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 13:04:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 13:04:14,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 13:04:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 13:04:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 13:04:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 13:04:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 13:04:14,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 13:04:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 13:04:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 13:04:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 13:04:14,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 13:04:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 13:04:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 13:04:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 13:04:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 13:04:14,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 13:04:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 13:04:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 13:04:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 13:04:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 13:04:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 13:04:14,498 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 13:04:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 13:04:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-21 13:04:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-21 13:04:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 13:04:14,499 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 13:04:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 13:04:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 13:04:14,500 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 13:04:14,500 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 13:04:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 13:04:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 13:04:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 13:04:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 13:04:14,501 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 13:04:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 13:04:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 13:04:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 13:04:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 13:04:14,502 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 13:04:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 13:04:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 13:04:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 13:04:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 13:04:14,503 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 13:04:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 13:04:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 13:04:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 13:04:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 13:04:14,504 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 13:04:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 13:04:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 13:04:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 13:04:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 13:04:14,505 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 13:04:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 13:04:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 13:04:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 13:04:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 13:04:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 13:04:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 13:04:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 13:04:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 13:04:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 13:04:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 13:04:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 13:04:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 13:04:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 13:04:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 13:04:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 13:04:14,508 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 13:04:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 13:04:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 13:04:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 13:04:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 13:04:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 13:04:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 13:04:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 13:04:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 13:04:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 13:04:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 13:04:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 13:04:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 13:04:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 13:04:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 13:04:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 13:04:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 13:04:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 13:04:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 13:04:14,511 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 13:04:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 13:04:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 13:04:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 13:04:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 13:04:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 13:04:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 13:04:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 13:04:14,512 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 13:04:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 13:04:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 13:04:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 13:04:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 13:04:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 13:04:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 13:04:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 13:04:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 13:04:14,513 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 13:04:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 13:04:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 13:04:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 13:04:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 13:04:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 13:04:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 13:04:14,514 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 13:04:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 13:04:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 13:04:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 13:04:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 13:04:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 13:04:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 13:04:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 13:04:14,515 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 13:04:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 13:04:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 13:04:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 13:04:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 13:04:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 13:04:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 13:04:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 13:04:14,516 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 13:04:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 13:04:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 13:04:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 13:04:14,517 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 13:04:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 13:04:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 13:04:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 13:04:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 13:04:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 13:04:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 13:04:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 13:04:14,518 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 13:04:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 13:04:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 13:04:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 13:04:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 13:04:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 13:04:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 13:04:14,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 13:04:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 13:04:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 13:04:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 13:04:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 13:04:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 13:04:14,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 13:04:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 13:04:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 13:04:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 13:04:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 13:04:14,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 13:04:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 13:04:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 13:04:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 13:04:14,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 13:04:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 13:04:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 13:04:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 13:04:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 13:04:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 13:04:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 13:04:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 13:04:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 13:04:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 13:04:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 13:04:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 13:04:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 13:04:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 13:04:14,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 13:04:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 13:04:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 13:04:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 13:04:14,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 13:04:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 13:04:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 13:04:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-21 13:04:14,527 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-21 13:04:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-21 13:04:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 13:04:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 13:04:14,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 13:04:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 13:04:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 13:04:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 13:04:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 13:04:14,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 13:04:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 13:04:14,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 13:04:15,197 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 13:04:15,657 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 13:04:16,300 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 13:04:16,301 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-21 13:04:16,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:04:16 BoogieIcfgContainer [2019-11-21 13:04:16,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 13:04:16,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 13:04:16,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 13:04:16,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 13:04:16,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:04:13" (1/3) ... [2019-11-21 13:04:16,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a50b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:04:16, skipping insertion in model container [2019-11-21 13:04:16,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:04:14" (2/3) ... [2019-11-21 13:04:16,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a50b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:04:16, skipping insertion in model container [2019-11-21 13:04:16,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:04:16" (3/3) ... [2019-11-21 13:04:16,317 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-2.i [2019-11-21 13:04:16,328 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 13:04:16,338 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-21 13:04:16,351 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-21 13:04:16,380 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 13:04:16,381 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 13:04:16,381 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 13:04:16,381 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 13:04:16,382 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 13:04:16,383 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 13:04:16,383 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 13:04:16,385 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 13:04:16,417 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-11-21 13:04:16,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 13:04:16,430 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:04:16,431 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:04:16,433 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:04:16,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:04:16,448 INFO L82 PathProgramCache]: Analyzing trace with hash 597436025, now seen corresponding path program 1 times [2019-11-21 13:04:16,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:04:16,464 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1707543534] [2019-11-21 13:04:16,464 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:16,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:04:16,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 13:04:16,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:04:16,944 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 13:04:16,945 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:04:16,957 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:04:16,957 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:04:16,958 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:04:17,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:17,009 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:04:17,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:17,101 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1707543534] [2019-11-21 13:04:17,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:04:17,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 13:04:17,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327182842] [2019-11-21 13:04:17,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:04:17,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:04:17,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:04:17,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:04:17,130 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 5 states. [2019-11-21 13:04:17,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:04:17,403 INFO L93 Difference]: Finished difference Result 93 states and 105 transitions. [2019-11-21 13:04:17,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:04:17,405 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 13:04:17,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:04:17,417 INFO L225 Difference]: With dead ends: 93 [2019-11-21 13:04:17,417 INFO L226 Difference]: Without dead ends: 90 [2019-11-21 13:04:17,419 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:04:17,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-21 13:04:17,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2019-11-21 13:04:17,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-21 13:04:17,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2019-11-21 13:04:17,471 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 22 [2019-11-21 13:04:17,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:04:17,472 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2019-11-21 13:04:17,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:04:17,472 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2019-11-21 13:04:17,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 13:04:17,474 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:04:17,474 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:04:17,677 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:17,678 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:04:17,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:04:17,679 INFO L82 PathProgramCache]: Analyzing trace with hash 597436026, now seen corresponding path program 1 times [2019-11-21 13:04:17,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:04:17,680 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [290131194] [2019-11-21 13:04:17,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:04:18,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-21 13:04:18,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:04:18,101 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 13:04:18,101 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:04:18,112 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:04:18,112 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:04:18,112 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:04:18,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:18,346 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:04:19,146 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:04:19,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:19,661 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [290131194] [2019-11-21 13:04:19,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:04:19,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 17 [2019-11-21 13:04:19,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175159380] [2019-11-21 13:04:19,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-21 13:04:19,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:04:19,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-21 13:04:19,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-11-21 13:04:19,665 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand 18 states. [2019-11-21 13:04:21,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:04:21,394 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2019-11-21 13:04:21,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-21 13:04:21,395 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2019-11-21 13:04:21,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:04:21,397 INFO L225 Difference]: With dead ends: 98 [2019-11-21 13:04:21,397 INFO L226 Difference]: Without dead ends: 98 [2019-11-21 13:04:21,398 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2019-11-21 13:04:21,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-21 13:04:21,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 91. [2019-11-21 13:04:21,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-21 13:04:21,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2019-11-21 13:04:21,410 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 22 [2019-11-21 13:04:21,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:04:21,410 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2019-11-21 13:04:21,410 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-21 13:04:21,410 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2019-11-21 13:04:21,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 13:04:21,411 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:04:21,411 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:04:21,614 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:21,616 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:04:21,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:04:21,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1484939706, now seen corresponding path program 1 times [2019-11-21 13:04:21,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:04:21,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2010575016] [2019-11-21 13:04:21,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:04:21,896 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 13:04:21,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:04:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:21,927 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:04:21,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:21,970 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2010575016] [2019-11-21 13:04:21,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:04:21,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 13:04:21,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470168347] [2019-11-21 13:04:21,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:04:21,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:04:21,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:04:21,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:04:21,972 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand 5 states. [2019-11-21 13:04:22,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:04:22,015 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2019-11-21 13:04:22,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:04:22,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-21 13:04:22,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:04:22,018 INFO L225 Difference]: With dead ends: 90 [2019-11-21 13:04:22,018 INFO L226 Difference]: Without dead ends: 90 [2019-11-21 13:04:22,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:04:22,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-21 13:04:22,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-21 13:04:22,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-21 13:04:22,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2019-11-21 13:04:22,028 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 22 [2019-11-21 13:04:22,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:04:22,028 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2019-11-21 13:04:22,028 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:04:22,028 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2019-11-21 13:04:22,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 13:04:22,029 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:04:22,029 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:04:22,241 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:22,241 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:04:22,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:04:22,242 INFO L82 PathProgramCache]: Analyzing trace with hash 1341474425, now seen corresponding path program 1 times [2019-11-21 13:04:22,242 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:04:22,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1536648466] [2019-11-21 13:04:22,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:04:22,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 13:04:22,503 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:04:22,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:22,529 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:04:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:22,620 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1536648466] [2019-11-21 13:04:22,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:04:22,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 13:04:22,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883549748] [2019-11-21 13:04:22,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:04:22,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:04:22,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:04:22,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:04:22,622 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 5 states. [2019-11-21 13:04:22,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:04:22,674 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2019-11-21 13:04:22,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:04:22,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-21 13:04:22,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:04:22,676 INFO L225 Difference]: With dead ends: 90 [2019-11-21 13:04:22,676 INFO L226 Difference]: Without dead ends: 90 [2019-11-21 13:04:22,676 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:04:22,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-21 13:04:22,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-21 13:04:22,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-21 13:04:22,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2019-11-21 13:04:22,685 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 23 [2019-11-21 13:04:22,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:04:22,685 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2019-11-21 13:04:22,685 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:04:22,686 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2019-11-21 13:04:22,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 13:04:22,687 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:04:22,687 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:04:22,889 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:22,891 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:04:22,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:04:22,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1210682536, now seen corresponding path program 1 times [2019-11-21 13:04:22,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:04:22,893 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2049642813] [2019-11-21 13:04:22,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:04:23,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 13:04:23,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:04:23,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:23,153 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:04:23,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:23,226 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2049642813] [2019-11-21 13:04:23,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:04:23,227 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 13:04:23,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141452584] [2019-11-21 13:04:23,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 13:04:23,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:04:23,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 13:04:23,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 13:04:23,228 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand 3 states. [2019-11-21 13:04:23,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:04:23,369 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2019-11-21 13:04:23,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 13:04:23,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-21 13:04:23,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:04:23,372 INFO L225 Difference]: With dead ends: 126 [2019-11-21 13:04:23,372 INFO L226 Difference]: Without dead ends: 121 [2019-11-21 13:04:23,372 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 13:04:23,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-21 13:04:23,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 86. [2019-11-21 13:04:23,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-21 13:04:23,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2019-11-21 13:04:23,380 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 23 [2019-11-21 13:04:23,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:04:23,380 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2019-11-21 13:04:23,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 13:04:23,381 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2019-11-21 13:04:23,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 13:04:23,381 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:04:23,382 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:04:23,584 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:23,585 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:04:23,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:04:23,586 INFO L82 PathProgramCache]: Analyzing trace with hash -343863878, now seen corresponding path program 1 times [2019-11-21 13:04:23,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:04:23,587 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1938171019] [2019-11-21 13:04:23,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:04:23,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-21 13:04:23,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:04:24,000 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 13:04:24,000 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:04:24,011 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:04:24,011 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:04:24,012 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:04:24,454 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:24,454 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:04:26,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:04:26,821 WARN L192 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-11-21 13:04:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:27,364 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1938171019] [2019-11-21 13:04:27,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:04:27,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2019-11-21 13:04:27,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107299382] [2019-11-21 13:04:27,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-11-21 13:04:27,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:04:27,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-11-21 13:04:27,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2019-11-21 13:04:27,366 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand 25 states. [2019-11-21 13:04:29,362 WARN L192 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2019-11-21 13:04:29,747 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 29 [2019-11-21 13:04:30,191 WARN L192 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-21 13:04:30,473 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-21 13:04:32,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:04:32,068 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2019-11-21 13:04:32,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-21 13:04:32,069 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 28 [2019-11-21 13:04:32,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:04:32,071 INFO L225 Difference]: With dead ends: 101 [2019-11-21 13:04:32,071 INFO L226 Difference]: Without dead ends: 101 [2019-11-21 13:04:32,072 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=246, Invalid=944, Unknown=0, NotChecked=0, Total=1190 [2019-11-21 13:04:32,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-11-21 13:04:32,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2019-11-21 13:04:32,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-21 13:04:32,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2019-11-21 13:04:32,080 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 28 [2019-11-21 13:04:32,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:04:32,081 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2019-11-21 13:04:32,081 INFO L463 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-11-21 13:04:32,081 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2019-11-21 13:04:32,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 13:04:32,083 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:04:32,083 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:04:32,292 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:32,293 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:04:32,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:04:32,294 INFO L82 PathProgramCache]: Analyzing trace with hash 2025519899, now seen corresponding path program 1 times [2019-11-21 13:04:32,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:04:32,295 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1637681759] [2019-11-21 13:04:32,296 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:04:32,614 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 13:04:32,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:04:32,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:32,733 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:04:32,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:32,950 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1637681759] [2019-11-21 13:04:32,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:04:32,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2019-11-21 13:04:32,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504247542] [2019-11-21 13:04:32,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 13:04:32,951 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:04:32,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 13:04:32,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-21 13:04:32,952 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 14 states. [2019-11-21 13:04:33,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:04:33,318 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2019-11-21 13:04:33,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 13:04:33,319 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2019-11-21 13:04:33,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:04:33,321 INFO L225 Difference]: With dead ends: 140 [2019-11-21 13:04:33,321 INFO L226 Difference]: Without dead ends: 137 [2019-11-21 13:04:33,322 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2019-11-21 13:04:33,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-21 13:04:33,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2019-11-21 13:04:33,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-21 13:04:33,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2019-11-21 13:04:33,330 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 35 [2019-11-21 13:04:33,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:04:33,331 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2019-11-21 13:04:33,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 13:04:33,331 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2019-11-21 13:04:33,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 13:04:33,332 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:04:33,332 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:04:33,537 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:33,538 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:04:33,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:04:33,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1928439432, now seen corresponding path program 1 times [2019-11-21 13:04:33,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:04:33,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2011075558] [2019-11-21 13:04:33,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:04:33,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 13:04:33,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:04:33,897 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 13:04:33,898 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:04:33,900 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:04:33,900 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:04:33,901 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:04:34,013 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:04:34,013 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-21 13:04:34,016 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:04:34,049 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 13:04:34,050 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 13:04:34,050 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-21 13:04:34,079 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-21 13:04:34,079 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:04:34,633 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:34,634 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2011075558] [2019-11-21 13:04:34,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 13:04:34,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-21 13:04:34,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004810988] [2019-11-21 13:04:34,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 13:04:34,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:04:34,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 13:04:34,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-21 13:04:34,635 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 8 states. [2019-11-21 13:04:49,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:04:49,297 INFO L93 Difference]: Finished difference Result 157 states and 182 transitions. [2019-11-21 13:04:49,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 13:04:49,299 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-21 13:04:49,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:04:49,302 INFO L225 Difference]: With dead ends: 157 [2019-11-21 13:04:49,302 INFO L226 Difference]: Without dead ends: 157 [2019-11-21 13:04:49,303 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=83, Invalid=378, Unknown=1, NotChecked=0, Total=462 [2019-11-21 13:04:49,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-21 13:04:49,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 105. [2019-11-21 13:04:49,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-21 13:04:49,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2019-11-21 13:04:49,311 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 35 [2019-11-21 13:04:49,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:04:49,311 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2019-11-21 13:04:49,311 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 13:04:49,311 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2019-11-21 13:04:49,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 13:04:49,313 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:04:49,313 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, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:04:49,516 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:49,517 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:04:49,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:04:49,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1928439431, now seen corresponding path program 1 times [2019-11-21 13:04:49,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:04:49,518 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [251567849] [2019-11-21 13:04:49,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:04:49,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:04:49,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-21 13:04:49,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:04:49,910 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 13:04:49,911 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:04:49,919 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:04:49,924 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 13:04:49,924 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:04:49,935 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:04:49,935 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:04:49,935 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 13:04:52,489 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:04:52,490 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 13:04:52,490 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:04:52,521 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:04:52,528 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 13:04:52,529 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:04:52,552 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:04:52,553 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 13:04:52,553 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:37, output treesize:21 [2019-11-21 13:04:52,614 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:04:52,614 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:04:52,877 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:04:55,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:04:55,156 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:04:55,156 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:04:55,158 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:04:55,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:04:55,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:04:55,162 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:05:08,531 WARN L192 SmtUtils]: Spent 6.74 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 13:05:08,537 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 13:05:13,035 WARN L192 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2019-11-21 13:05:17,511 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2019-11-21 13:05:18,248 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_231|], 2=[|v_#length_186|]} [2019-11-21 13:05:18,255 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 13:05:18,256 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:05:18,257 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:05:18,257 INFO L464 ElimStorePlain]: Eliminatee |v_#length_186| vanished before elimination [2019-11-21 13:05:18,258 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:05:18,258 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:30, output treesize:1 [2019-11-21 13:05:18,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:05:19,026 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 13:05:19,040 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 13:05:19,041 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:05:19,066 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:05:19,069 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 13:05:19,069 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 13:05:19,091 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:05:19,092 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 13:05:19,093 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:34, output treesize:17 [2019-11-21 13:05:19,299 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:05:19,299 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [251567849] [2019-11-21 13:05:19,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:05:19,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 29 [2019-11-21 13:05:19,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559589872] [2019-11-21 13:05:19,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-21 13:05:19,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:05:19,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-21 13:05:19,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=773, Unknown=6, NotChecked=0, Total=870 [2019-11-21 13:05:19,302 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 30 states. [2019-11-21 13:07:00,494 WARN L192 SmtUtils]: Spent 28.40 s on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-11-21 13:07:10,342 WARN L192 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-11-21 13:07:13,536 WARN L192 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-11-21 13:07:22,940 WARN L192 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-11-21 13:08:00,406 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (bvmul c_alloc_17_~i~0 (_ bv4 32)))) (let ((.cse4 (bvadd .cse5 c_alloc_17_~array.offset)) (.cse0 (bvadd .cse5 c_alloc_17_~array.offset (_ bv4 32)))) (and (bvsle .cse0 (select |c_#length| c_alloc_17_~array.base)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse3 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse1 (bvadd .cse3 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse2 (bvadd .cse3 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse1)) (bvsle .cse2 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse1 .cse2)))))) (bvsle (_ bv0 32) .cse4) (bvsle .cse4 .cse0) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|)))))) is different from false [2019-11-21 13:08:53,084 WARN L192 SmtUtils]: Spent 28.31 s on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-11-21 13:08:57,931 WARN L192 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 13:09:43,296 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|)))) is different from false [2019-11-21 13:10:10,540 WARN L192 SmtUtils]: Spent 4.21 s on a formula simplification. DAG size of input: 62 DAG size of output: 34 [2019-11-21 13:11:30,710 WARN L192 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 46 DAG size of output: 16 [2019-11-21 13:12:20,703 WARN L192 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-11-21 13:12:26,546 WARN L192 SmtUtils]: Spent 809.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-11-21 13:12:54,539 WARN L192 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-11-21 13:13:17,713 WARN L192 SmtUtils]: Spent 7.64 s on a formula simplification. DAG size of input: 88 DAG size of output: 50 [2019-11-21 13:13:19,986 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 1) (select |c_#valid| c_alloc_17_~array.base)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= |c_#valid| |c_old(#valid)|) (exists ((entry_point_~len~0 (_ BitVec 32))) (and (not (bvslt (_ bv1 32) entry_point_~len~0)) (bvsgt entry_point_~len~0 (_ bv0 32)) (= (bvmul (_ bv4 32) entry_point_~len~0) (select |c_#length| |c_alloc_17_#in~array.base|)))) (= |c_old(#length)| |c_#length|) (= c_alloc_17_~array.offset (_ bv0 32)) (= (_ bv0 32) c_alloc_17_~i~0) (= (_ bv1 1) (select |c_#valid| |c_alloc_17_#in~array.base|)) (= |c_alloc_17_#in~array.offset| (_ bv0 32)) (exists ((entry_point_~len~0 (_ BitVec 32))) (and (not (bvslt (_ bv1 32) entry_point_~len~0)) (= (bvmul (_ bv4 32) entry_point_~len~0) (select |c_#length| c_alloc_17_~array.base)) (bvsgt entry_point_~len~0 (_ bv0 32))))) is different from false [2019-11-21 13:13:20,850 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-21 13:13:33,974 WARN L192 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-11-21 13:14:04,591 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 34 [2019-11-21 13:14:06,765 WARN L838 $PredicateComparison]: unable to prove that (and (or (bvsle (_ bv0 32) |c_alloc_17_#in~array.offset|) (forall ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_34|) (_ bv0 1))))) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse2 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2)) (.cse1 (bvadd .cse2 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (bvsle .cse1 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (exists ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_9 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| v_prenex_9)) (not (bvsle (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| v_prenex_9 v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (not (bvsle .cse0 .cse1)))))) (forall ((v_prenex_13 (_ BitVec 32)) (v_ldv_malloc_~size_42 (_ BitVec 32))) (or (not (= (select |c_#valid| v_prenex_13) (_ bv0 1))) (bvsle (bvadd |c_alloc_17_#in~array.offset| (_ bv4 32)) (select (store |c_#length| v_prenex_13 v_ldv_malloc_~size_42) |c_alloc_17_#in~array.base|)))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= |c_#valid| |c_old(#valid)|) (or (bvsle |c_alloc_17_#in~array.offset| (bvadd |c_alloc_17_#in~array.offset| (_ bv4 32))) (forall ((v_prenex_14 (_ BitVec 32))) (not (= (select |c_#valid| v_prenex_14) (_ bv0 1))))) (= |c_old(#length)| |c_#length|)) is different from false [2019-11-21 13:14:50,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:14:50,933 INFO L93 Difference]: Finished difference Result 288 states and 340 transitions. [2019-11-21 13:14:50,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-11-21 13:14:50,934 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 35 [2019-11-21 13:14:50,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:14:50,938 INFO L225 Difference]: With dead ends: 288 [2019-11-21 13:14:50,938 INFO L226 Difference]: Without dead ends: 288 [2019-11-21 13:14:50,940 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 60 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 273.0s TimeCoverageRelationStatistics Valid=359, Invalid=2904, Unknown=59, NotChecked=460, Total=3782 [2019-11-21 13:14:50,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2019-11-21 13:14:50,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 174. [2019-11-21 13:14:50,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2019-11-21 13:14:50,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 230 transitions. [2019-11-21 13:14:50,954 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 230 transitions. Word has length 35 [2019-11-21 13:14:50,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:14:50,954 INFO L462 AbstractCegarLoop]: Abstraction has 174 states and 230 transitions. [2019-11-21 13:14:50,955 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-21 13:14:50,955 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 230 transitions. [2019-11-21 13:14:50,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-21 13:14:50,956 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:14:50,957 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:14:51,160 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:14:51,161 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:14:51,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:14:51,162 INFO L82 PathProgramCache]: Analyzing trace with hash -2099434107, now seen corresponding path program 1 times [2019-11-21 13:14:51,162 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:14:51,163 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [994054645] [2019-11-21 13:14:51,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:14:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:14:51,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 13:14:51,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:14:51,492 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-21 13:14:51,493 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:14:51,543 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-21 13:14:51,543 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [994054645] [2019-11-21 13:14:51,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:14:51,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 13:14:51,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475155271] [2019-11-21 13:14:51,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:14:51,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:14:51,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:14:51,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:14:51,545 INFO L87 Difference]: Start difference. First operand 174 states and 230 transitions. Second operand 5 states. [2019-11-21 13:14:51,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:14:51,603 INFO L93 Difference]: Finished difference Result 181 states and 237 transitions. [2019-11-21 13:14:51,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 13:14:51,603 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-11-21 13:14:51,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:14:51,605 INFO L225 Difference]: With dead ends: 181 [2019-11-21 13:14:51,605 INFO L226 Difference]: Without dead ends: 181 [2019-11-21 13:14:51,606 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 13:14:51,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2019-11-21 13:14:51,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 170. [2019-11-21 13:14:51,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2019-11-21 13:14:51,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 223 transitions. [2019-11-21 13:14:51,616 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 223 transitions. Word has length 37 [2019-11-21 13:14:51,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:14:51,617 INFO L462 AbstractCegarLoop]: Abstraction has 170 states and 223 transitions. [2019-11-21 13:14:51,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:14:51,617 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 223 transitions. [2019-11-21 13:14:51,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-21 13:14:51,618 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:14:51,619 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:14:51,819 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:14:51,819 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:14:51,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:14:51,820 INFO L82 PathProgramCache]: Analyzing trace with hash -356623772, now seen corresponding path program 1 times [2019-11-21 13:14:51,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:14:51,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [616866260] [2019-11-21 13:14:51,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:14:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:14:52,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 13:14:52,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:14:52,159 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-21 13:14:52,159 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:14:52,188 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-21 13:14:52,189 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [616866260] [2019-11-21 13:14:52,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:14:52,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 13:14:52,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153691669] [2019-11-21 13:14:52,190 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 13:14:52,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:14:52,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 13:14:52,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 13:14:52,191 INFO L87 Difference]: Start difference. First operand 170 states and 223 transitions. Second operand 6 states. [2019-11-21 13:14:52,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:14:52,304 INFO L93 Difference]: Finished difference Result 173 states and 217 transitions. [2019-11-21 13:14:52,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:14:52,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-11-21 13:14:52,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:14:52,307 INFO L225 Difference]: With dead ends: 173 [2019-11-21 13:14:52,307 INFO L226 Difference]: Without dead ends: 173 [2019-11-21 13:14:52,308 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 13:14:52,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-21 13:14:52,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2019-11-21 13:14:52,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-11-21 13:14:52,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 204 transitions. [2019-11-21 13:14:52,315 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 204 transitions. Word has length 37 [2019-11-21 13:14:52,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:14:52,316 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 204 transitions. [2019-11-21 13:14:52,316 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 13:14:52,316 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 204 transitions. [2019-11-21 13:14:52,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-21 13:14:52,317 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:14:52,317 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1] [2019-11-21 13:14:52,520 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:14:52,521 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:14:52,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:14:52,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1765265242, now seen corresponding path program 1 times [2019-11-21 13:14:52,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:14:52,523 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [466007080] [2019-11-21 13:14:52,523 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:14:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:14:52,879 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 13:14:52,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:14:52,912 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-21 13:14:52,912 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:14:52,954 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-21 13:14:52,955 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [466007080] [2019-11-21 13:14:52,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 13:14:52,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 13:14:52,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429103271] [2019-11-21 13:14:52,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 13:14:52,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:14:52,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 13:14:52,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:14:52,956 INFO L87 Difference]: Start difference. First operand 160 states and 204 transitions. Second operand 5 states. [2019-11-21 13:14:52,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:14:52,981 INFO L93 Difference]: Finished difference Result 137 states and 163 transitions. [2019-11-21 13:14:52,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 13:14:52,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2019-11-21 13:14:52,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:14:52,984 INFO L225 Difference]: With dead ends: 137 [2019-11-21 13:14:52,984 INFO L226 Difference]: Without dead ends: 137 [2019-11-21 13:14:52,985 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 13:14:52,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-21 13:14:52,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2019-11-21 13:14:52,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-11-21 13:14:52,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 160 transitions. [2019-11-21 13:14:52,991 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 160 transitions. Word has length 38 [2019-11-21 13:14:52,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:14:52,991 INFO L462 AbstractCegarLoop]: Abstraction has 135 states and 160 transitions. [2019-11-21 13:14:52,991 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 13:14:52,992 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 160 transitions. [2019-11-21 13:14:52,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-21 13:14:52,993 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:14:52,993 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:14:53,202 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:14:53,203 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:14:53,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:14:53,204 INFO L82 PathProgramCache]: Analyzing trace with hash 519015482, now seen corresponding path program 2 times [2019-11-21 13:14:53,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:14:53,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2120055430] [2019-11-21 13:14:53,205 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:14:53,589 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 13:14:53,589 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 13:14:53,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-21 13:14:53,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:14:53,632 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 13:14:53,632 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:14:53,641 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:14:53,641 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:14:53,641 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 13:14:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:14:54,633 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:14:56,454 WARN L192 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2019-11-21 13:14:56,851 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-21 13:14:57,324 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-21 13:14:57,864 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-21 13:14:58,331 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-11-21 13:14:59,371 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 13:15:00,335 WARN L192 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-11-21 13:15:01,204 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 13:15:01,204 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2120055430] [2019-11-21 13:15:01,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 13:15:01,205 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 33 [2019-11-21 13:15:01,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514971370] [2019-11-21 13:15:01,205 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-21 13:15:01,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 13:15:01,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-21 13:15:01,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=920, Unknown=0, NotChecked=0, Total=1122 [2019-11-21 13:15:01,207 INFO L87 Difference]: Start difference. First operand 135 states and 160 transitions. Second operand 34 states. [2019-11-21 13:15:02,588 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-21 13:15:03,326 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-21 13:15:04,041 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-21 13:15:04,739 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-21 13:15:05,377 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-21 13:15:06,035 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-11-21 13:15:08,642 WARN L192 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2019-11-21 13:15:10,599 WARN L192 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 98 DAG size of output: 29 [2019-11-21 13:15:13,010 WARN L192 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2019-11-21 13:15:15,048 WARN L192 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 29 [2019-11-21 13:15:17,204 WARN L192 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2019-11-21 13:15:19,199 WARN L192 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 28 [2019-11-21 13:15:21,288 WARN L192 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2019-11-21 13:15:22,909 WARN L192 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 29 [2019-11-21 13:15:24,853 WARN L192 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2019-11-21 13:15:26,050 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 29 [2019-11-21 13:15:26,990 WARN L192 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33 [2019-11-21 13:15:28,776 WARN L192 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-11-21 13:15:29,469 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2019-11-21 13:15:31,370 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 31 [2019-11-21 13:15:34,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 13:15:34,185 INFO L93 Difference]: Finished difference Result 169 states and 222 transitions. [2019-11-21 13:15:34,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-21 13:15:34,188 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 40 [2019-11-21 13:15:34,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 13:15:34,189 INFO L225 Difference]: With dead ends: 169 [2019-11-21 13:15:34,189 INFO L226 Difference]: Without dead ends: 169 [2019-11-21 13:15:34,191 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=878, Invalid=2782, Unknown=0, NotChecked=0, Total=3660 [2019-11-21 13:15:34,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-11-21 13:15:34,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 159. [2019-11-21 13:15:34,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-11-21 13:15:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 192 transitions. [2019-11-21 13:15:34,200 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 192 transitions. Word has length 40 [2019-11-21 13:15:34,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 13:15:34,201 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 192 transitions. [2019-11-21 13:15:34,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-21 13:15:34,201 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 192 transitions. [2019-11-21 13:15:34,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-21 13:15:34,203 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 13:15:34,203 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 13:15:34,403 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:15:34,404 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 13:15:34,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 13:15:34,406 INFO L82 PathProgramCache]: Analyzing trace with hash -725997882, now seen corresponding path program 1 times [2019-11-21 13:15:34,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 13:15:34,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [651926837] [2019-11-21 13:15:34,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:15:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 13:15:34,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 13:15:34,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 13:15:34,752 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 13:15:34,753 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 13:15:34,755 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 13:15:34,756 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 13:15:34,756 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 13:15:34,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-21 13:15:34,819 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 13:15:35,091 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 13:15:35,093 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 13:15:35,099 INFO L168 Benchmark]: Toolchain (without parser) took 681690.11 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 248.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -120.6 MB). Peak memory consumption was 128.0 MB. Max. memory is 11.5 GB. [2019-11-21 13:15:35,100 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 13:15:35,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 863.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -139.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-21 13:15:35,100 INFO L168 Benchmark]: Boogie Preprocessor took 147.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-21 13:15:35,101 INFO L168 Benchmark]: RCFGBuilder took 1880.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.0 MB in the end (delta: 119.5 MB). Peak memory consumption was 119.5 MB. Max. memory is 11.5 GB. [2019-11-21 13:15:35,101 INFO L168 Benchmark]: TraceAbstraction took 678789.29 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 106.4 MB). Free memory was 970.0 MB in the beginning and 1.1 GB in the end (delta: -106.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 13:15:35,103 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 863.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -139.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 147.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1880.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 970.0 MB in the end (delta: 119.5 MB). Peak memory consumption was 119.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 678789.29 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 106.4 MB). Free memory was 970.0 MB in the beginning and 1.1 GB in the end (delta: -106.9 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...