./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-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 64bit --witnessprinter.graph.data.programhash 85051d52521692aaf1a0de9e5f8f895724c83314 --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 11:09:39,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 11:09:39,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 11:09:39,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 11:09:39,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 11:09:39,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 11:09:39,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 11:09:39,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 11:09:39,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 11:09:39,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 11:09:39,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 11:09:39,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 11:09:39,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 11:09:39,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 11:09:39,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 11:09:39,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 11:09:39,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 11:09:39,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 11:09:39,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 11:09:39,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 11:09:39,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 11:09:39,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 11:09:39,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 11:09:39,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 11:09:39,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 11:09:39,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 11:09:39,281 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 11:09:39,282 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 11:09:39,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 11:09:39,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 11:09:39,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 11:09:39,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 11:09:39,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 11:09:39,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 11:09:39,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 11:09:39,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 11:09:39,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 11:09:39,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 11:09:39,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 11:09:39,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 11:09:39,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 11:09:39,302 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 11:09:39,331 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 11:09:39,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 11:09:39,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 11:09:39,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 11:09:39,336 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 11:09:39,336 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 11:09:39,337 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 11:09:39,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 11:09:39,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 11:09:39,337 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 11:09:39,339 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 11:09:39,339 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 11:09:39,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 11:09:39,340 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 11:09:39,340 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 11:09:39,341 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 11:09:39,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 11:09:39,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 11:09:39,341 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 11:09:39,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 11:09:39,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 11:09:39,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 11:09:39,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 11:09:39,343 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 11:09:39,344 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 11:09:39,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 11:09:39,344 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85051d52521692aaf1a0de9e5f8f895724c83314 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 11:09:39,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 11:09:39,646 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 11:09:39,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 11:09:39,653 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 11:09:39,653 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 11:09:39,653 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2019-11-21 11:09:39,717 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88350d54/1bc3a851b2394ef68e25eb11032bcb80/FLAGc793064a3 [2019-11-21 11:09:40,338 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 11:09:40,339 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2019-11-21 11:09:40,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88350d54/1bc3a851b2394ef68e25eb11032bcb80/FLAGc793064a3 [2019-11-21 11:09:40,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d88350d54/1bc3a851b2394ef68e25eb11032bcb80 [2019-11-21 11:09:40,589 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 11:09:40,591 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 11:09:40,592 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 11:09:40,592 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 11:09:40,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 11:09:40,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:09:40" (1/1) ... [2019-11-21 11:09:40,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@412552fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:09:40, skipping insertion in model container [2019-11-21 11:09:40,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:09:40" (1/1) ... [2019-11-21 11:09:40,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 11:09:40,653 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:09:41,067 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 11:09:41,068 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 11:09:41,068 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:09:41,096 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 11:09:41,096 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 11:09:41,096 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:09:41,101 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 11:09:41,102 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 11:09:41,102 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:09:41,107 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 11:09:41,108 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 11:09:41,108 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:09:41,147 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 11:09:41,147 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 11:09:41,148 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:09:41,168 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 11:09:41,168 INFO L969 CHandler]: at location: C: (struct A17 *)ldv_malloc(sizeof(struct A17)) [766] [2019-11-21 11:09:41,169 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:09:41,186 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 11:09:41,186 INFO L969 CHandler]: at location: C: (struct A17 **)ldv_malloc(sizeof(struct A17*)*len) [787] [2019-11-21 11:09:41,187 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 11:09:41,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:09:41,220 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 11:09:41,251 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 11:09:41,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:09:41,350 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 11:09:41,428 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 11:09:41,514 INFO L205 MainTranslator]: Completed translation [2019-11-21 11:09:41,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:09:41 WrapperNode [2019-11-21 11:09:41,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 11:09:41,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 11:09:41,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 11:09:41,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 11:09:41,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:09:41" (1/1) ... [2019-11-21 11:09:41,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:09:41" (1/1) ... [2019-11-21 11:09:41,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:09:41" (1/1) ... [2019-11-21 11:09:41,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:09:41" (1/1) ... [2019-11-21 11:09:41,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:09:41" (1/1) ... [2019-11-21 11:09:41,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:09:41" (1/1) ... [2019-11-21 11:09:41,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:09:41" (1/1) ... [2019-11-21 11:09:41,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 11:09:41,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 11:09:41,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 11:09:41,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 11:09:41,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:09:41" (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 11:09:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 11:09:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 11:09:41,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:09:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 11:09:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 11:09:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 11:09:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 11:09:41,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 11:09:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 11:09:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 11:09:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 11:09:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 11:09:41,709 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:09:41,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 11:09:41,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 11:09:41,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 11:09:41,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 11:09:41,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 11:09:41,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 11:09:41,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 11:09:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 11:09:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 11:09:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 11:09:41,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 11:09:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 11:09:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 11:09:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 11:09:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 11:09:41,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 11:09:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 11:09:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 11:09:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 11:09:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 11:09:41,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 11:09:41,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 11:09:41,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 11:09:41,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 11:09:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 11:09:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 11:09:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 11:09:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 11:09:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-21 11:09:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-21 11:09:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 11:09:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 11:09:41,717 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 11:09:41,718 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 11:09:41,718 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 11:09:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 11:09:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 11:09:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 11:09:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 11:09:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 11:09:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 11:09:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 11:09:41,719 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 11:09:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 11:09:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 11:09:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 11:09:41,720 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 11:09:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 11:09:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 11:09:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 11:09:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 11:09:41,721 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 11:09:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 11:09:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 11:09:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 11:09:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 11:09:41,722 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 11:09:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 11:09:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 11:09:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 11:09:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 11:09:41,723 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 11:09:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 11:09:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 11:09:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 11:09:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 11:09:41,724 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 11:09:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 11:09:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 11:09:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 11:09:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 11:09:41,725 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 11:09:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 11:09:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 11:09:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 11:09:41,726 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 11:09:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 11:09:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 11:09:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 11:09:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 11:09:41,727 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 11:09:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 11:09:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 11:09:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 11:09:41,728 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 11:09:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 11:09:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 11:09:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 11:09:41,729 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 11:09:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 11:09:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 11:09:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 11:09:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 11:09:41,730 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 11:09:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 11:09:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 11:09:41,731 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 11:09:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 11:09:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 11:09:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 11:09:41,732 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 11:09:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 11:09:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 11:09:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 11:09:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 11:09:41,733 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 11:09:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 11:09:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 11:09:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 11:09:41,734 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 11:09:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 11:09:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 11:09:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 11:09:41,735 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 11:09:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 11:09:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 11:09:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 11:09:41,736 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 11:09:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 11:09:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 11:09:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 11:09:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 11:09:41,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 11:09:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 11:09:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 11:09:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 11:09:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 11:09:41,738 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 11:09:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 11:09:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 11:09:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 11:09:41,739 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 11:09:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 11:09:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 11:09:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 11:09:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 11:09:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 11:09:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 11:09:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 11:09:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 11:09:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 11:09:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 11:09:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 11:09:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 11:09:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 11:09:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 11:09:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 11:09:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 11:09:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 11:09:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 11:09:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 11:09:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 11:09:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 11:09:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 11:09:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 11:09:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 11:09:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 11:09:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 11:09:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 11:09:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 11:09:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 11:09:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 11:09:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 11:09:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 11:09:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 11:09:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 11:09:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 11:09:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 11:09:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 11:09:41,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 11:09:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 11:09:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 11:09:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 11:09:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 11:09:41,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 11:09:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 11:09:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 11:09:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 11:09:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 11:09:41,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 11:09:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 11:09:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 11:09:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 11:09:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 11:09:41,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 11:09:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 11:09:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 11:09:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 11:09:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 11:09:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 11:09:41,751 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-21 11:09:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-21 11:09:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 11:09:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 11:09:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 11:09:41,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 11:09:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 11:09:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 11:09:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 11:09:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 11:09:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 11:09:41,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 11:09:42,402 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:09:42,786 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 11:09:43,335 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 11:09:43,335 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-21 11:09:43,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:09:43 BoogieIcfgContainer [2019-11-21 11:09:43,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 11:09:43,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 11:09:43,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 11:09:43,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 11:09:43,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 11:09:40" (1/3) ... [2019-11-21 11:09:43,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a79541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:09:43, skipping insertion in model container [2019-11-21 11:09:43,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:09:41" (2/3) ... [2019-11-21 11:09:43,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a79541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 11:09:43, skipping insertion in model container [2019-11-21 11:09:43,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:09:43" (3/3) ... [2019-11-21 11:09:43,345 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-1.i [2019-11-21 11:09:43,355 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 11:09:43,363 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 87 error locations. [2019-11-21 11:09:43,374 INFO L249 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2019-11-21 11:09:43,396 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 11:09:43,396 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 11:09:43,396 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 11:09:43,396 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 11:09:43,396 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 11:09:43,396 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 11:09:43,397 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 11:09:43,397 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 11:09:43,417 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2019-11-21 11:09:43,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 11:09:43,428 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:09:43,429 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:09:43,430 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:09:43,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:09:43,436 INFO L82 PathProgramCache]: Analyzing trace with hash 525282912, now seen corresponding path program 1 times [2019-11-21 11:09:43,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:09:43,449 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [963120550] [2019-11-21 11:09:43,449 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 11:09:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:09:43,784 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:09:43,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:09:43,856 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 11:09:43,857 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:09:43,868 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:09:43,868 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:09:43,869 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:09:43,900 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 11:09:43,900 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:09:43,960 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 11:09:43,962 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [963120550] [2019-11-21 11:09:43,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:09:43,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 11:09:43,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486864117] [2019-11-21 11:09:43,969 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:09:43,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:09:43,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:09:43,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:09:43,991 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 5 states. [2019-11-21 11:09:44,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:09:44,239 INFO L93 Difference]: Finished difference Result 81 states and 92 transitions. [2019-11-21 11:09:44,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:09:44,241 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 11:09:44,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:09:44,253 INFO L225 Difference]: With dead ends: 81 [2019-11-21 11:09:44,253 INFO L226 Difference]: Without dead ends: 78 [2019-11-21 11:09:44,256 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:09:44,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-21 11:09:44,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2019-11-21 11:09:44,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-21 11:09:44,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 85 transitions. [2019-11-21 11:09:44,311 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 85 transitions. Word has length 16 [2019-11-21 11:09:44,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:09:44,312 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 85 transitions. [2019-11-21 11:09:44,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:09:44,312 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 85 transitions. [2019-11-21 11:09:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 11:09:44,314 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:09:44,314 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:09:44,524 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:09:44,526 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:09:44,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:09:44,527 INFO L82 PathProgramCache]: Analyzing trace with hash 525282913, now seen corresponding path program 1 times [2019-11-21 11:09:44,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:09:44,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1777525690] [2019-11-21 11:09:44,529 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 11:09:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:09:44,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 11:09:44,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:09:44,858 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 11:09:44,859 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:09:44,866 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:09:44,866 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:09:44,866 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:09:44,951 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 11:09:44,952 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:09:45,824 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 11:09:45,825 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1777525690] [2019-11-21 11:09:45,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:09:45,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-21 11:09:45,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394284231] [2019-11-21 11:09:45,831 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 11:09:45,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:09:45,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 11:09:45,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-21 11:09:45,834 INFO L87 Difference]: Start difference. First operand 74 states and 85 transitions. Second operand 14 states. [2019-11-21 11:09:47,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:09:47,195 INFO L93 Difference]: Finished difference Result 89 states and 105 transitions. [2019-11-21 11:09:47,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 11:09:47,196 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-21 11:09:47,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:09:47,198 INFO L225 Difference]: With dead ends: 89 [2019-11-21 11:09:47,198 INFO L226 Difference]: Without dead ends: 89 [2019-11-21 11:09:47,199 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2019-11-21 11:09:47,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-21 11:09:47,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 79. [2019-11-21 11:09:47,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-21 11:09:47,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2019-11-21 11:09:47,211 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 16 [2019-11-21 11:09:47,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:09:47,212 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2019-11-21 11:09:47,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 11:09:47,212 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2019-11-21 11:09:47,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 11:09:47,213 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:09:47,213 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:09:47,416 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:09:47,417 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:09:47,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:09:47,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1412786593, now seen corresponding path program 1 times [2019-11-21 11:09:47,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:09:47,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [19647716] [2019-11-21 11:09:47,420 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 11:09:47,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:09:47,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 11:09:47,634 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:09:47,665 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 11:09:47,665 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:09:47,715 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 11:09:47,715 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [19647716] [2019-11-21 11:09:47,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:09:47,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:09:47,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337698113] [2019-11-21 11:09:47,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:09:47,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:09:47,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:09:47,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:09:47,717 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand 5 states. [2019-11-21 11:09:47,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:09:47,761 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2019-11-21 11:09:47,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:09:47,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 11:09:47,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:09:47,763 INFO L225 Difference]: With dead ends: 78 [2019-11-21 11:09:47,764 INFO L226 Difference]: Without dead ends: 78 [2019-11-21 11:09:47,764 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:09:47,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-21 11:09:47,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2019-11-21 11:09:47,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-21 11:09:47,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2019-11-21 11:09:47,774 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 16 [2019-11-21 11:09:47,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:09:47,774 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2019-11-21 11:09:47,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:09:47,774 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2019-11-21 11:09:47,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 11:09:47,776 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:09:47,776 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:09:47,983 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:09:47,983 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:09:47,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:09:47,984 INFO L82 PathProgramCache]: Analyzing trace with hash -896115154, now seen corresponding path program 1 times [2019-11-21 11:09:47,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:09:47,984 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [843987729] [2019-11-21 11:09:47,984 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 11:09:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:09:48,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:09:48,189 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:09:48,207 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 11:09:48,207 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:09:48,288 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 11:09:48,288 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [843987729] [2019-11-21 11:09:48,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:09:48,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:09:48,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263357578] [2019-11-21 11:09:48,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:09:48,292 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:09:48,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:09:48,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:09:48,292 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 5 states. [2019-11-21 11:09:48,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:09:48,341 INFO L93 Difference]: Finished difference Result 78 states and 86 transitions. [2019-11-21 11:09:48,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:09:48,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 11:09:48,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:09:48,343 INFO L225 Difference]: With dead ends: 78 [2019-11-21 11:09:48,343 INFO L226 Difference]: Without dead ends: 78 [2019-11-21 11:09:48,344 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:09:48,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-21 11:09:48,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2019-11-21 11:09:48,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-21 11:09:48,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2019-11-21 11:09:48,352 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 17 [2019-11-21 11:09:48,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:09:48,352 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2019-11-21 11:09:48,352 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:09:48,352 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2019-11-21 11:09:48,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 11:09:48,353 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:09:48,353 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:09:48,555 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:09:48,556 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:09:48,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:09:48,557 INFO L82 PathProgramCache]: Analyzing trace with hash 846695181, now seen corresponding path program 1 times [2019-11-21 11:09:48,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:09:48,558 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [617003424] [2019-11-21 11:09:48,558 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 11:09:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:09:48,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 11:09:48,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:09:48,781 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 11:09:48,781 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:09:48,843 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 11:09:48,844 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [617003424] [2019-11-21 11:09:48,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:09:48,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 11:09:48,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511128704] [2019-11-21 11:09:48,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 11:09:48,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:09:48,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 11:09:48,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:09:48,845 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 3 states. [2019-11-21 11:09:49,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:09:49,005 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2019-11-21 11:09:49,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 11:09:49,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-21 11:09:49,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:09:49,007 INFO L225 Difference]: With dead ends: 114 [2019-11-21 11:09:49,008 INFO L226 Difference]: Without dead ends: 109 [2019-11-21 11:09:49,008 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 11:09:49,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-21 11:09:49,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 74. [2019-11-21 11:09:49,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-21 11:09:49,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2019-11-21 11:09:49,016 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 17 [2019-11-21 11:09:49,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:09:49,016 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2019-11-21 11:09:49,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 11:09:49,016 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2019-11-21 11:09:49,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 11:09:49,017 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:09:49,017 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:09:49,223 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:09:49,224 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:09:49,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:09:49,224 INFO L82 PathProgramCache]: Analyzing trace with hash 445572097, now seen corresponding path program 1 times [2019-11-21 11:09:49,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:09:49,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1553576756] [2019-11-21 11:09:49,226 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 11:09:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:09:49,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-21 11:09:49,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:09:49,537 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 11:09:49,538 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:09:49,543 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:09:49,543 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:09:49,544 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:09:49,669 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 11:09:49,669 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:09:50,634 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:09:50,958 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-21 11:09:51,367 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 11:09:51,368 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1553576756] [2019-11-21 11:09:51,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:09:51,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-11-21 11:09:51,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999090500] [2019-11-21 11:09:51,369 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-21 11:09:51,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:09:51,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-21 11:09:51,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-21 11:09:51,371 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 19 states. [2019-11-21 11:09:52,348 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-11-21 11:09:53,010 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 11:09:54,768 WARN L192 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 11:09:55,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:09:55,503 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2019-11-21 11:09:55,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-21 11:09:55,503 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2019-11-21 11:09:55,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:09:55,505 INFO L225 Difference]: With dead ends: 91 [2019-11-21 11:09:55,505 INFO L226 Difference]: Without dead ends: 91 [2019-11-21 11:09:55,505 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2019-11-21 11:09:55,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-21 11:09:55,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 86. [2019-11-21 11:09:55,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-21 11:09:55,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2019-11-21 11:09:55,520 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 22 [2019-11-21 11:09:55,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:09:55,520 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2019-11-21 11:09:55,520 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-21 11:09:55,521 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2019-11-21 11:09:55,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 11:09:55,521 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:09:55,522 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:09:55,722 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:09:55,723 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:09:55,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:09:55,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1352798049, now seen corresponding path program 1 times [2019-11-21 11:09:55,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:09:55,725 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [676163520] [2019-11-21 11:09:55,725 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 11:09:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:09:56,030 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 11:09:56,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:09:56,080 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:09:56,081 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:09:56,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:09:56,221 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [676163520] [2019-11-21 11:09:56,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:09:56,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 11:09:56,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794104767] [2019-11-21 11:09:56,223 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-21 11:09:56,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:09:56,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-21 11:09:56,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-21 11:09:56,224 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand 12 states. [2019-11-21 11:09:56,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:09:56,620 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2019-11-21 11:09:56,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 11:09:56,621 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-11-21 11:09:56,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:09:56,622 INFO L225 Difference]: With dead ends: 92 [2019-11-21 11:09:56,623 INFO L226 Difference]: Without dead ends: 92 [2019-11-21 11:09:56,623 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-21 11:09:56,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-21 11:09:56,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2019-11-21 11:09:56,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-21 11:09:56,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2019-11-21 11:09:56,631 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 35 [2019-11-21 11:09:56,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:09:56,631 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2019-11-21 11:09:56,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-21 11:09:56,631 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2019-11-21 11:09:56,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 11:09:56,632 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:09:56,633 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:09:56,836 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:09:56,837 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:09:56,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:09:56,837 INFO L82 PathProgramCache]: Analyzing trace with hash 211035969, now seen corresponding path program 2 times [2019-11-21 11:09:56,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:09:56,839 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [542580787] [2019-11-21 11:09:56,839 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:09:57,193 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 11:09:57,194 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 11:09:57,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-21 11:09:57,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:09:57,217 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 11:09:57,218 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:09:57,223 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:09:57,224 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:09:57,224 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 11:09:57,544 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 11:09:57,544 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:09:59,478 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:09:59,860 WARN L192 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-21 11:10:00,284 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 11:10:00,285 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [542580787] [2019-11-21 11:10:00,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:10:00,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 26 [2019-11-21 11:10:00,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891068742] [2019-11-21 11:10:00,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-11-21 11:10:00,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:10:00,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-11-21 11:10:00,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=584, Unknown=0, NotChecked=0, Total=702 [2019-11-21 11:10:00,288 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand 27 states. [2019-11-21 11:10:01,918 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-11-21 11:10:02,775 WARN L192 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 11:10:03,225 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 11:10:04,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:10:04,244 INFO L93 Difference]: Finished difference Result 102 states and 113 transitions. [2019-11-21 11:10:04,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-21 11:10:04,246 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 34 [2019-11-21 11:10:04,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:10:04,247 INFO L225 Difference]: With dead ends: 102 [2019-11-21 11:10:04,247 INFO L226 Difference]: Without dead ends: 102 [2019-11-21 11:10:04,248 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 39 SyntacticMatches, 3 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=302, Invalid=1420, Unknown=0, NotChecked=0, Total=1722 [2019-11-21 11:10:04,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-21 11:10:04,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2019-11-21 11:10:04,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-21 11:10:04,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2019-11-21 11:10:04,255 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 34 [2019-11-21 11:10:04,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:10:04,256 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2019-11-21 11:10:04,256 INFO L463 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-11-21 11:10:04,256 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2019-11-21 11:10:04,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-21 11:10:04,257 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:10:04,258 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:10:04,469 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:10:04,470 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:10:04,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:10:04,471 INFO L82 PathProgramCache]: Analyzing trace with hash 177113729, now seen corresponding path program 3 times [2019-11-21 11:10:04,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:10:04,472 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [666843741] [2019-11-21 11:10:04,472 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:10:05,106 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-21 11:10:05,106 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 11:10:05,110 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 23 conjunts are in the unsatisfiable core [2019-11-21 11:10:05,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:10:05,584 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:10:05,584 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:10:07,762 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 11:10:07,762 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [666843741] [2019-11-21 11:10:07,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:10:07,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 38 [2019-11-21 11:10:07,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102789289] [2019-11-21 11:10:07,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-21 11:10:07,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:10:07,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-21 11:10:07,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1146, Unknown=0, NotChecked=0, Total=1406 [2019-11-21 11:10:07,767 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand 38 states. [2019-11-21 11:10:08,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:10:08,879 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2019-11-21 11:10:08,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-11-21 11:10:08,882 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 46 [2019-11-21 11:10:08,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:10:08,883 INFO L225 Difference]: With dead ends: 96 [2019-11-21 11:10:08,883 INFO L226 Difference]: Without dead ends: 96 [2019-11-21 11:10:08,884 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=285, Invalid=1197, Unknown=0, NotChecked=0, Total=1482 [2019-11-21 11:10:08,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-11-21 11:10:08,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-11-21 11:10:08,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-11-21 11:10:08,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2019-11-21 11:10:08,889 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 46 [2019-11-21 11:10:08,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:10:08,890 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2019-11-21 11:10:08,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-21 11:10:08,890 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2019-11-21 11:10:08,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 11:10:08,892 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:10:08,892 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:10:09,096 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:10:09,097 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:10:09,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:10:09,098 INFO L82 PathProgramCache]: Analyzing trace with hash -805853520, now seen corresponding path program 2 times [2019-11-21 11:10:09,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:10:09,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1245048980] [2019-11-21 11:10:09,100 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:10:09,356 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 11:10:09,357 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 11:10:09,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:10:09,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:10:09,387 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 11:10:09,387 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:10:09,473 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 11:10:09,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1245048980] [2019-11-21 11:10:09,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:10:09,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-21 11:10:09,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257012386] [2019-11-21 11:10:09,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 11:10:09,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:10:09,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 11:10:09,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:10:09,477 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand 7 states. [2019-11-21 11:10:09,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:10:09,564 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2019-11-21 11:10:09,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:10:09,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-21 11:10:09,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:10:09,566 INFO L225 Difference]: With dead ends: 127 [2019-11-21 11:10:09,567 INFO L226 Difference]: Without dead ends: 124 [2019-11-21 11:10:09,567 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-21 11:10:09,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-11-21 11:10:09,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 97. [2019-11-21 11:10:09,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-21 11:10:09,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 102 transitions. [2019-11-21 11:10:09,572 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 102 transitions. Word has length 56 [2019-11-21 11:10:09,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:10:09,572 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 102 transitions. [2019-11-21 11:10:09,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 11:10:09,573 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2019-11-21 11:10:09,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 11:10:09,574 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:10:09,574 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:10:09,777 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:10:09,778 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:10:09,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:10:09,779 INFO L82 PathProgramCache]: Analyzing trace with hash -368546806, now seen corresponding path program 1 times [2019-11-21 11:10:09,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:10:09,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [217609387] [2019-11-21 11:10:09,780 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 11:10:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:10:10,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 11:10:10,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:10:10,244 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 11:10:10,244 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:10:10,246 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:10:10,246 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:10:10,246 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:10:10,351 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:10:10,352 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-21 11:10:10,352 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:10:10,375 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 11:10:10,375 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 11:10:10,376 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-21 11:10:10,413 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 11:10:10,413 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:10:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-21 11:10:12,784 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [217609387] [2019-11-21 11:10:12,784 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 11:10:12,784 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-21 11:10:12,785 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889053355] [2019-11-21 11:10:12,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 11:10:12,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:10:12,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 11:10:12,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=173, Unknown=1, NotChecked=0, Total=210 [2019-11-21 11:10:12,786 INFO L87 Difference]: Start difference. First operand 97 states and 102 transitions. Second operand 8 states. [2019-11-21 11:10:36,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:10:36,878 INFO L93 Difference]: Finished difference Result 153 states and 170 transitions. [2019-11-21 11:10:36,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 11:10:36,878 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-21 11:10:36,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:10:36,880 INFO L225 Difference]: With dead ends: 153 [2019-11-21 11:10:36,880 INFO L226 Difference]: Without dead ends: 153 [2019-11-21 11:10:36,880 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=83, Invalid=377, Unknown=2, NotChecked=0, Total=462 [2019-11-21 11:10:36,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-21 11:10:36,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 103. [2019-11-21 11:10:36,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-21 11:10:36,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2019-11-21 11:10:36,890 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 56 [2019-11-21 11:10:36,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:10:36,892 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions. [2019-11-21 11:10:36,892 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 11:10:36,893 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2019-11-21 11:10:36,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 11:10:36,899 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:10:36,900 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:10:37,100 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:10:37,101 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:10:37,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:10:37,102 INFO L82 PathProgramCache]: Analyzing trace with hash -368546805, now seen corresponding path program 1 times [2019-11-21 11:10:37,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:10:37,103 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2097209521] [2019-11-21 11:10:37,103 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 11:10:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:10:37,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-21 11:10:37,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:10:37,687 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 11:10:37,687 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:10:37,697 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:10:37,701 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 11:10:37,701 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:10:37,709 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:10:37,710 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:10:37,710 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 11:10:39,871 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 11:10:39,874 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 11:10:39,874 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:10:39,891 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:10:39,904 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:10:39,904 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 11:10:39,905 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:10:39,919 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:10:39,920 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:10:39,921 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2019-11-21 11:10:39,959 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 11:10:39,960 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:10:40,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:10:42,399 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:10:42,399 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:10:42,399 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:10:42,401 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:10:42,402 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 11:10:42,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:10:42,404 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:10:42,405 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:10:47,114 WARN L192 SmtUtils]: Spent 3.91 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 11:10:47,118 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 11:10:56,921 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_253|], 2=[|v_#length_214|]} [2019-11-21 11:10:56,931 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 11:10:56,932 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:10:56,941 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:10:56,943 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 11:10:56,943 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:10:56,951 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:10:56,952 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 11:10:56,952 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 11:10:57,597 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 11:10:57,619 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 11:10:57,619 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:10:57,638 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:10:57,640 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 11:10:57,641 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 11:10:57,656 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:10:57,657 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 11:10:57,657 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 11:10:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 11:10:57,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2097209521] [2019-11-21 11:10:57,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 11:10:57,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-21 11:10:57,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464982420] [2019-11-21 11:10:57,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-21 11:10:57,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:10:57,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-21 11:10:57,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=406, Unknown=3, NotChecked=0, Total=462 [2019-11-21 11:10:57,818 INFO L87 Difference]: Start difference. First operand 103 states and 112 transitions. Second operand 22 states. [2019-11-21 11:11:05,973 WARN L192 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 56 [2019-11-21 11:11:14,456 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 11:11:16,851 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-21 11:11:22,047 WARN L192 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2019-11-21 11:11:29,383 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-21 11:11:33,104 WARN L192 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-11-21 11:11:47,881 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 11:11:52,830 WARN L192 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-11-21 11:12:00,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:12:00,439 INFO L93 Difference]: Finished difference Result 267 states and 307 transitions. [2019-11-21 11:12:00,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-11-21 11:12:00,440 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-21 11:12:00,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:12:00,444 INFO L225 Difference]: With dead ends: 267 [2019-11-21 11:12:00,444 INFO L226 Difference]: Without dead ends: 267 [2019-11-21 11:12:00,445 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 40.1s TimeCoverageRelationStatistics Valid=219, Invalid=1338, Unknown=3, NotChecked=0, Total=1560 [2019-11-21 11:12:00,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2019-11-21 11:12:00,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 113. [2019-11-21 11:12:00,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-21 11:12:00,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 129 transitions. [2019-11-21 11:12:00,453 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 129 transitions. Word has length 56 [2019-11-21 11:12:00,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:12:00,454 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 129 transitions. [2019-11-21 11:12:00,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-21 11:12:00,454 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 129 transitions. [2019-11-21 11:12:00,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 11:12:00,455 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:12:00,456 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:12:00,660 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:12:00,661 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:12:00,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:12:00,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1986206825, now seen corresponding path program 1 times [2019-11-21 11:12:00,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:12:00,663 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [251335927] [2019-11-21 11:12:00,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:12:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:12:00,938 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 11:12:00,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:12:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 11:12:00,999 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:12:01,036 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 11:12:01,036 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [251335927] [2019-11-21 11:12:01,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:12:01,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 11:12:01,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255054048] [2019-11-21 11:12:01,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 11:12:01,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:12:01,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 11:12:01,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 11:12:01,038 INFO L87 Difference]: Start difference. First operand 113 states and 129 transitions. Second operand 5 states. [2019-11-21 11:12:01,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:12:01,086 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2019-11-21 11:12:01,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 11:12:01,086 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-21 11:12:01,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:12:01,088 INFO L225 Difference]: With dead ends: 133 [2019-11-21 11:12:01,088 INFO L226 Difference]: Without dead ends: 133 [2019-11-21 11:12:01,089 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:12:01,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-21 11:12:01,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 117. [2019-11-21 11:12:01,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-11-21 11:12:01,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 132 transitions. [2019-11-21 11:12:01,095 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 132 transitions. Word has length 58 [2019-11-21 11:12:01,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:12:01,096 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 132 transitions. [2019-11-21 11:12:01,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 11:12:01,096 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 132 transitions. [2019-11-21 11:12:01,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 11:12:01,097 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:12:01,098 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:12:01,298 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:12:01,299 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_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:12:01,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:12:01,300 INFO L82 PathProgramCache]: Analyzing trace with hash -243396490, now seen corresponding path program 1 times [2019-11-21 11:12:01,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:12:01,301 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1901867895] [2019-11-21 11:12:01,302 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 11:12:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:12:01,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 11:12:01,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:12:01,743 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 11:12:01,744 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:12:01,781 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 11:12:01,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1901867895] [2019-11-21 11:12:01,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 11:12:01,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 11:12:01,782 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994301654] [2019-11-21 11:12:01,783 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 11:12:01,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 11:12:01,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 11:12:01,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 11:12:01,783 INFO L87 Difference]: Start difference. First operand 117 states and 132 transitions. Second operand 6 states. [2019-11-21 11:12:01,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 11:12:01,937 INFO L93 Difference]: Finished difference Result 124 states and 139 transitions. [2019-11-21 11:12:01,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 11:12:01,939 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-21 11:12:01,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 11:12:01,940 INFO L225 Difference]: With dead ends: 124 [2019-11-21 11:12:01,940 INFO L226 Difference]: Without dead ends: 124 [2019-11-21 11:12:01,941 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 11:12:01,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-11-21 11:12:01,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 119. [2019-11-21 11:12:01,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-21 11:12:01,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 134 transitions. [2019-11-21 11:12:01,945 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 134 transitions. Word has length 58 [2019-11-21 11:12:01,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 11:12:01,946 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 134 transitions. [2019-11-21 11:12:01,946 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 11:12:01,946 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 134 transitions. [2019-11-21 11:12:01,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 11:12:01,947 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 11:12:01,947 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 11:12:02,152 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:12:02,153 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 11:12:02,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 11:12:02,154 INFO L82 PathProgramCache]: Analyzing trace with hash -666295029, now seen corresponding path program 1 times [2019-11-21 11:12:02,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 11:12:02,155 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1898272289] [2019-11-21 11:12:02,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:12:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 11:12:02,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 11:12:02,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 11:12:02,650 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 11:12:02,650 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 11:12:02,652 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 11:12:02,653 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 11:12:02,653 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 11:12:02,724 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 11:12:02,725 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 11:12:03,020 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 11:12:03,020 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 11:12:03,029 INFO L168 Benchmark]: Toolchain (without parser) took 142435.12 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 358.1 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -137.2 MB). Peak memory consumption was 220.9 MB. Max. memory is 11.5 GB. [2019-11-21 11:12:03,030 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 11:12:03,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 923.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-21 11:12:03,031 INFO L168 Benchmark]: Boogie Preprocessor took 138.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 11:12:03,038 INFO L168 Benchmark]: RCFGBuilder took 1682.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.8 MB in the end (delta: 117.5 MB). Peak memory consumption was 117.5 MB. Max. memory is 11.5 GB. [2019-11-21 11:12:03,039 INFO L168 Benchmark]: TraceAbstraction took 139685.31 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 210.8 MB). Free memory was 971.8 MB in the beginning and 1.1 GB in the end (delta: -116.4 MB). Peak memory consumption was 94.4 MB. Max. memory is 11.5 GB. [2019-11-21 11:12:03,040 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 923.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -144.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 138.15 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1682.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.8 MB in the end (delta: 117.5 MB). Peak memory consumption was 117.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 139685.31 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 210.8 MB). Free memory was 971.8 MB in the beginning and 1.1 GB in the end (delta: -116.4 MB). Peak memory consumption was 94.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...