./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 701f399f Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 46ca4cc321f66643bb303146077f836b6b81d33d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-701f399 [2019-11-22 09:42:44,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 09:42:44,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 09:42:44,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 09:42:44,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 09:42:44,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 09:42:44,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 09:42:44,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 09:42:44,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 09:42:44,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 09:42:44,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 09:42:44,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 09:42:44,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 09:42:44,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 09:42:44,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 09:42:44,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 09:42:44,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 09:42:44,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 09:42:44,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 09:42:44,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 09:42:44,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 09:42:44,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 09:42:44,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 09:42:44,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 09:42:44,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 09:42:44,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 09:42:44,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 09:42:44,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 09:42:44,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 09:42:44,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 09:42:44,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 09:42:44,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 09:42:44,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 09:42:44,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 09:42:44,307 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 09:42:44,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 09:42:44,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 09:42:44,308 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 09:42:44,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 09:42:44,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 09:42:44,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 09:42:44,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-22 09:42:44,326 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 09:42:44,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 09:42:44,329 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 09:42:44,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 09:42:44,329 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 09:42:44,330 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 09:42:44,330 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 09:42:44,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 09:42:44,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 09:42:44,331 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 09:42:44,331 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 09:42:44,331 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 09:42:44,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 09:42:44,332 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 09:42:44,332 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 09:42:44,332 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 09:42:44,333 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 09:42:44,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 09:42:44,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 09:42:44,334 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 09:42:44,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 09:42:44,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 09:42:44,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 09:42:44,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 09:42:44,335 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 09:42:44,336 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 09:42:44,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 09:42:44,336 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 -> 46ca4cc321f66643bb303146077f836b6b81d33d [2019-11-22 09:42:44,693 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 09:42:44,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 09:42:44,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 09:42:44,717 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 09:42:44,717 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 09:42:44,718 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-22 09:42:44,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09240e032/2e6239ee981f44b5b9d288b1e04e7c6e/FLAGb8f183f4e [2019-11-22 09:42:45,365 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 09:42:45,367 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-2.i [2019-11-22 09:42:45,392 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09240e032/2e6239ee981f44b5b9d288b1e04e7c6e/FLAGb8f183f4e [2019-11-22 09:42:45,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09240e032/2e6239ee981f44b5b9d288b1e04e7c6e [2019-11-22 09:42:45,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 09:42:45,621 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 09:42:45,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 09:42:45,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 09:42:45,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 09:42:45,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:42:45" (1/1) ... [2019-11-22 09:42:45,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b529ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:45, skipping insertion in model container [2019-11-22 09:42:45,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:42:45" (1/1) ... [2019-11-22 09:42:45,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 09:42:45,685 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:42:46,073 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:42:46,074 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-22 09:42:46,074 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:42:46,087 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:42:46,087 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-22 09:42:46,088 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:42:46,092 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:42:46,092 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-22 09:42:46,092 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:42:46,097 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:42:46,097 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-22 09:42:46,098 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:42:46,153 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:42:46,153 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-22 09:42:46,154 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:42:46,176 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:42:46,177 INFO L968 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [759] [2019-11-22 09:42:46,178 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:42:46,179 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:42:46,179 INFO L968 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [761] [2019-11-22 09:42:46,180 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:42:46,184 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:42:46,219 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 09:42:46,245 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:42:46,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:42:46,332 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 09:42:46,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:42:46,517 INFO L205 MainTranslator]: Completed translation [2019-11-22 09:42:46,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:46 WrapperNode [2019-11-22 09:42:46,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 09:42:46,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 09:42:46,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 09:42:46,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 09:42:46,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:46" (1/1) ... [2019-11-22 09:42:46,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:46" (1/1) ... [2019-11-22 09:42:46,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:46" (1/1) ... [2019-11-22 09:42:46,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:46" (1/1) ... [2019-11-22 09:42:46,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:46" (1/1) ... [2019-11-22 09:42:46,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:46" (1/1) ... [2019-11-22 09:42:46,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:46" (1/1) ... [2019-11-22 09:42:46,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 09:42:46,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 09:42:46,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 09:42:46,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 09:42:46,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 09:42:46,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 09:42:46,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 09:42:46,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 09:42:46,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 09:42:46,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 09:42:46,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 09:42:46,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 09:42:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 09:42:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 09:42:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 09:42:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 09:42:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 09:42:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 09:42:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 09:42:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 09:42:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 09:42:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 09:42:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 09:42:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 09:42:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 09:42:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 09:42:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 09:42:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 09:42:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 09:42:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 09:42:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 09:42:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 09:42:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 09:42:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 09:42:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 09:42:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 09:42:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 09:42:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 09:42:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 09:42:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 09:42:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 09:42:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 09:42:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 09:42:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 09:42:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 09:42:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 09:42:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 09:42:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 09:42:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 09:42:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 09:42:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 09:42:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 09:42:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 09:42:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 09:42:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 09:42:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 09:42:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 09:42:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 09:42:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 09:42:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 09:42:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 09:42:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 09:42:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 09:42:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 09:42:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 09:42:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 09:42:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 09:42:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 09:42:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 09:42:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 09:42:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 09:42:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 09:42:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 09:42:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 09:42:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 09:42:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 09:42:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 09:42:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 09:42:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 09:42:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 09:42:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 09:42:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 09:42:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 09:42:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 09:42:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 09:42:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 09:42:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 09:42:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 09:42:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 09:42:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 09:42:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 09:42:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 09:42:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 09:42:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 09:42:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 09:42:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 09:42:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 09:42:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 09:42:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 09:42:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 09:42:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 09:42:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 09:42:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 09:42:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 09:42:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 09:42:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 09:42:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 09:42:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 09:42:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 09:42:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 09:42:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 09:42:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 09:42:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 09:42:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 09:42:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 09:42:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 09:42:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 09:42:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 09:42:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 09:42:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 09:42:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 09:42:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 09:42:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 09:42:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 09:42:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 09:42:46,746 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 09:42:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 09:42:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 09:42:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 09:42:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 09:42:46,747 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 09:42:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 09:42:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 09:42:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 09:42:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 09:42:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 09:42:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 09:42:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 09:42:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 09:42:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 09:42:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 09:42:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 09:42:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 09:42:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 09:42:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 09:42:46,750 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 09:42:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 09:42:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 09:42:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 09:42:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 09:42:46,751 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 09:42:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 09:42:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 09:42:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 09:42:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 09:42:46,752 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 09:42:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 09:42:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 09:42:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 09:42:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 09:42:46,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 09:42:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 09:42:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 09:42:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 09:42:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 09:42:46,754 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 09:42:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 09:42:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 09:42:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 09:42:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 09:42:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 09:42:46,755 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 09:42:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 09:42:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 09:42:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 09:42:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 09:42:46,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 09:42:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 09:42:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 09:42:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 09:42:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 09:42:46,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 09:42:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 09:42:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 09:42:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 09:42:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 09:42:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 09:42:46,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 09:42:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 09:42:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 09:42:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 09:42:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 09:42:46,759 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 09:42:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 09:42:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 09:42:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 09:42:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 09:42:46,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 09:42:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 09:42:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 09:42:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 09:42:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 09:42:46,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 09:42:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 09:42:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 09:42:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 09:42:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 09:42:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 09:42:46,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 09:42:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 09:42:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 09:42:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 09:42:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 09:42:46,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 09:42:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 09:42:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 09:42:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 09:42:46,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 09:42:47,453 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 09:42:47,892 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 09:42:48,257 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 09:42:48,258 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-22 09:42:48,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:42:48 BoogieIcfgContainer [2019-11-22 09:42:48,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 09:42:48,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 09:42:48,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 09:42:48,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 09:42:48,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:42:45" (1/3) ... [2019-11-22 09:42:48,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306dedc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:42:48, skipping insertion in model container [2019-11-22 09:42:48,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:42:46" (2/3) ... [2019-11-22 09:42:48,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306dedc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:42:48, skipping insertion in model container [2019-11-22 09:42:48,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:42:48" (3/3) ... [2019-11-22 09:42:48,270 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test4-2.i [2019-11-22 09:42:48,281 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 09:42:48,290 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-22 09:42:48,304 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-22 09:42:48,330 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 09:42:48,330 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 09:42:48,330 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 09:42:48,331 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 09:42:48,331 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 09:42:48,331 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 09:42:48,331 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 09:42:48,332 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 09:42:48,351 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states. [2019-11-22 09:42:48,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 09:42:48,363 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:48,365 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:48,366 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:48,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:48,375 INFO L82 PathProgramCache]: Analyzing trace with hash -2025190552, now seen corresponding path program 1 times [2019-11-22 09:42:48,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:48,388 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [895132099] [2019-11-22 09:42:48,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:42:48,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:42:48,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:48,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:42:48,754 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:42:48,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:42:48,854 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [895132099] [2019-11-22 09:42:48,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:42:48,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 09:42:48,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776423834] [2019-11-22 09:42:48,861 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:42:48,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:42:48,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:42:48,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:42:48,882 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 5 states. [2019-11-22 09:42:48,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:42:48,952 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2019-11-22 09:42:48,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:42:48,954 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 09:42:48,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:42:48,966 INFO L225 Difference]: With dead ends: 53 [2019-11-22 09:42:48,966 INFO L226 Difference]: Without dead ends: 50 [2019-11-22 09:42:48,968 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:42:48,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-22 09:42:49,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2019-11-22 09:42:49,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-22 09:42:49,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2019-11-22 09:42:49,016 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 16 [2019-11-22 09:42:49,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:42:49,017 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2019-11-22 09:42:49,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:42:49,017 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2019-11-22 09:42:49,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 09:42:49,019 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:49,020 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:49,231 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:49,232 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:49,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:49,233 INFO L82 PathProgramCache]: Analyzing trace with hash -282380217, now seen corresponding path program 1 times [2019-11-22 09:42:49,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:49,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1329523900] [2019-11-22 09:42:49,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:42:49,459 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 09:42:49,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:49,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:42:49,483 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:42:49,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:42:49,545 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1329523900] [2019-11-22 09:42:49,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:42:49,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 09:42:49,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414860267] [2019-11-22 09:42:49,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 09:42:49,549 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:42:49,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 09:42:49,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 09:42:49,550 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand 3 states. [2019-11-22 09:42:49,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:42:49,614 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-11-22 09:42:49,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 09:42:49,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-22 09:42:49,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:42:49,617 INFO L225 Difference]: With dead ends: 46 [2019-11-22 09:42:49,617 INFO L226 Difference]: Without dead ends: 43 [2019-11-22 09:42:49,618 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 09:42:49,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-22 09:42:49,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 31. [2019-11-22 09:42:49,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-22 09:42:49,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2019-11-22 09:42:49,624 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 16 [2019-11-22 09:42:49,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:42:49,625 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2019-11-22 09:42:49,625 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 09:42:49,625 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2019-11-22 09:42:49,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-22 09:42:49,626 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:49,626 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:49,829 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:49,830 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:49,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:49,831 INFO L82 PathProgramCache]: Analyzing trace with hash -2034469669, now seen corresponding path program 1 times [2019-11-22 09:42:49,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:49,831 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [982673609] [2019-11-22 09:42:49,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:42:50,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:42:50,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:50,077 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:50,077 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:42:50,153 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:50,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [982673609] [2019-11-22 09:42:50,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:42:50,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 09:42:50,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138118835] [2019-11-22 09:42:50,155 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:42:50,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:42:50,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:42:50,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:42:50,155 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 5 states. [2019-11-22 09:42:50,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:42:50,169 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2019-11-22 09:42:50,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:42:50,170 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-11-22 09:42:50,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:42:50,171 INFO L225 Difference]: With dead ends: 30 [2019-11-22 09:42:50,171 INFO L226 Difference]: Without dead ends: 30 [2019-11-22 09:42:50,172 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:42:50,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-22 09:42:50,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-22 09:42:50,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-22 09:42:50,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-11-22 09:42:50,177 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 20 [2019-11-22 09:42:50,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:42:50,177 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-11-22 09:42:50,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:42:50,177 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-11-22 09:42:50,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 09:42:50,178 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:50,178 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:50,388 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:50,390 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:50,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:50,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1355950095, now seen corresponding path program 1 times [2019-11-22 09:42:50,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:50,391 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [294864249] [2019-11-22 09:42:50,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:42:50,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:42:50,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:50,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:50,635 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:42:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:50,686 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [294864249] [2019-11-22 09:42:50,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:42:50,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 09:42:50,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226735888] [2019-11-22 09:42:50,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:42:50,687 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:42:50,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:42:50,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:42:50,687 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 5 states. [2019-11-22 09:42:50,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:42:50,773 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-11-22 09:42:50,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:42:50,774 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-22 09:42:50,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:42:50,774 INFO L225 Difference]: With dead ends: 35 [2019-11-22 09:42:50,775 INFO L226 Difference]: Without dead ends: 35 [2019-11-22 09:42:50,777 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:42:50,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-22 09:42:50,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-22 09:42:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-22 09:42:50,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-22 09:42:50,785 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 21 [2019-11-22 09:42:50,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:42:50,786 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-22 09:42:50,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:42:50,786 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-22 09:42:50,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 09:42:50,788 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:50,788 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:50,993 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:50,994 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:50,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:50,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1384579246, now seen corresponding path program 1 times [2019-11-22 09:42:50,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:50,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2030478530] [2019-11-22 09:42:50,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:42:51,208 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 09:42:51,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:51,338 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:42:51,338 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:42:51,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:51,460 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2030478530] [2019-11-22 09:42:51,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 09:42:51,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2019-11-22 09:42:51,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626621943] [2019-11-22 09:42:51,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 09:42:51,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:42:51,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 09:42:51,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-22 09:42:51,462 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 6 states. [2019-11-22 09:42:51,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:42:51,622 INFO L93 Difference]: Finished difference Result 66 states and 69 transitions. [2019-11-22 09:42:51,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 09:42:51,623 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2019-11-22 09:42:51,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:42:51,624 INFO L225 Difference]: With dead ends: 66 [2019-11-22 09:42:51,624 INFO L226 Difference]: Without dead ends: 66 [2019-11-22 09:42:51,625 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-11-22 09:42:51,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-11-22 09:42:51,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 46. [2019-11-22 09:42:51,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-11-22 09:42:51,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2019-11-22 09:42:51,632 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 21 [2019-11-22 09:42:51,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:42:51,632 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2019-11-22 09:42:51,633 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 09:42:51,633 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2019-11-22 09:42:51,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-22 09:42:51,634 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:51,634 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:51,834 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:51,835 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:51,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:51,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1091176239, now seen corresponding path program 1 times [2019-11-22 09:42:51,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:51,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2045647466] [2019-11-22 09:42:51,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:42:52,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:42:52,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:52,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:52,060 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:42:52,126 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:52,127 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2045647466] [2019-11-22 09:42:52,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:42:52,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-22 09:42:52,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647624380] [2019-11-22 09:42:52,128 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-22 09:42:52,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:42:52,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-22 09:42:52,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-11-22 09:42:52,129 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 9 states. [2019-11-22 09:42:52,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:42:52,323 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2019-11-22 09:42:52,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-22 09:42:52,323 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2019-11-22 09:42:52,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:42:52,324 INFO L225 Difference]: With dead ends: 54 [2019-11-22 09:42:52,325 INFO L226 Difference]: Without dead ends: 54 [2019-11-22 09:42:52,325 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-11-22 09:42:52,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-11-22 09:42:52,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 42. [2019-11-22 09:42:52,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-22 09:42:52,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-22 09:42:52,332 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 21 [2019-11-22 09:42:52,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:42:52,333 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-22 09:42:52,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-22 09:42:52,333 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-22 09:42:52,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-22 09:42:52,334 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:52,334 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:52,538 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:52,538 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:52,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:52,539 INFO L82 PathProgramCache]: Analyzing trace with hash -915219619, now seen corresponding path program 1 times [2019-11-22 09:42:52,539 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:52,540 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1493574001] [2019-11-22 09:42:52,540 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:42:52,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:42:52,801 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:52,832 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 09:42:52,832 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:42:52,836 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:42:52,836 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:42:52,836 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:42:52,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:52,855 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:42:52,892 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:52,892 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1493574001] [2019-11-22 09:42:52,893 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:42:52,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 09:42:52,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506882472] [2019-11-22 09:42:52,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:42:52,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:42:52,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:42:52,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:42:52,894 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2019-11-22 09:42:52,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:42:52,950 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2019-11-22 09:42:52,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:42:52,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-22 09:42:52,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:42:52,952 INFO L225 Difference]: With dead ends: 41 [2019-11-22 09:42:52,952 INFO L226 Difference]: Without dead ends: 41 [2019-11-22 09:42:52,953 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:42:52,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-11-22 09:42:52,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2019-11-22 09:42:52,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-22 09:42:52,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2019-11-22 09:42:52,958 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 22 [2019-11-22 09:42:52,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:42:52,958 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2019-11-22 09:42:52,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:42:52,958 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2019-11-22 09:42:52,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-22 09:42:52,959 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:52,959 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:53,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:53,164 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:53,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:53,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1692963281, now seen corresponding path program 1 times [2019-11-22 09:42:53,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:53,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [724911420] [2019-11-22 09:42:53,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:42:53,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:42:53,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:53,408 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:42:53,444 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:53,445 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [724911420] [2019-11-22 09:42:53,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:42:53,445 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-22 09:42:53,445 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785997338] [2019-11-22 09:42:53,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:42:53,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:42:53,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:42:53,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:42:53,446 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand 5 states. [2019-11-22 09:42:53,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:42:53,456 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2019-11-22 09:42:53,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:42:53,456 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-22 09:42:53,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:42:53,457 INFO L225 Difference]: With dead ends: 36 [2019-11-22 09:42:53,458 INFO L226 Difference]: Without dead ends: 36 [2019-11-22 09:42:53,458 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:42:53,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-22 09:42:53,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-22 09:42:53,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-22 09:42:53,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2019-11-22 09:42:53,464 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 23 [2019-11-22 09:42:53,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:42:53,464 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2019-11-22 09:42:53,464 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:42:53,465 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-11-22 09:42:53,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-22 09:42:53,465 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:53,465 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:53,667 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:53,669 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:53,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:53,669 INFO L82 PathProgramCache]: Analyzing trace with hash 942254559, now seen corresponding path program 1 times [2019-11-22 09:42:53,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:53,671 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [527192478] [2019-11-22 09:42:53,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:53,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:42:53,921 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:42:53,923 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:42:54,031 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:42:54,080 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:54,082 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [527192478] [2019-11-22 09:42:54,082 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:42:54,082 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2019-11-22 09:42:54,083 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010575016] [2019-11-22 09:42:54,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 09:42:54,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:42:54,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 09:42:54,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-22 09:42:54,084 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 6 states. [2019-11-22 09:42:54,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:42:54,186 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2019-11-22 09:42:54,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 09:42:54,186 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2019-11-22 09:42:54,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:42:54,187 INFO L225 Difference]: With dead ends: 35 [2019-11-22 09:42:54,187 INFO L226 Difference]: Without dead ends: 35 [2019-11-22 09:42:54,188 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-22 09:42:54,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-11-22 09:42:54,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2019-11-22 09:42:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-22 09:42:54,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2019-11-22 09:42:54,195 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 24 [2019-11-22 09:42:54,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:42:54,196 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2019-11-22 09:42:54,196 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 09:42:54,196 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2019-11-22 09:42:54,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-22 09:42:54,197 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:54,197 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:54,400 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:54,401 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:54,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:54,401 INFO L82 PathProgramCache]: Analyzing trace with hash -854879341, now seen corresponding path program 1 times [2019-11-22 09:42:54,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:54,402 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1884644798] [2019-11-22 09:42:54,402 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:42:54,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-22 09:42:54,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:54,705 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 09:42:54,706 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:42:54,707 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:42:54,707 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:42:54,708 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:42:54,783 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:42:54,784 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-22 09:42:54,785 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:42:54,803 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-22 09:42:54,804 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:42:54,804 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:15 [2019-11-22 09:42:54,885 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-11-22 09:42:54,886 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:42:54,901 INFO L567 ElimStorePlain]: treesize reduction 4, result has 73.3 percent of original size [2019-11-22 09:42:54,902 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-22 09:42:54,902 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:11 [2019-11-22 09:42:54,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:42:54,946 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:42:55,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:42:55,178 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1884644798] [2019-11-22 09:42:55,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 09:42:55,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [8] total 13 [2019-11-22 09:42:55,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364950930] [2019-11-22 09:42:55,179 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-22 09:42:55,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:42:55,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-22 09:42:55,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-22 09:42:55,179 INFO L87 Difference]: Start difference. First operand 35 states and 39 transitions. Second operand 10 states. [2019-11-22 09:42:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:42:57,378 INFO L93 Difference]: Finished difference Result 50 states and 54 transitions. [2019-11-22 09:42:57,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-22 09:42:57,379 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2019-11-22 09:42:57,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:42:57,380 INFO L225 Difference]: With dead ends: 50 [2019-11-22 09:42:57,380 INFO L226 Difference]: Without dead ends: 50 [2019-11-22 09:42:57,381 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2019-11-22 09:42:57,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-22 09:42:57,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2019-11-22 09:42:57,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-22 09:42:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-22 09:42:57,388 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-11-22 09:42:57,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:42:57,389 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-22 09:42:57,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-22 09:42:57,389 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-22 09:42:57,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-22 09:42:57,390 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:57,390 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:57,593 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:57,594 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:57,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:57,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1051392846, now seen corresponding path program 1 times [2019-11-22 09:42:57,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:57,595 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1157243468] [2019-11-22 09:42:57,596 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:42:57,844 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-22 09:42:57,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:57,851 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 09:42:57,851 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:42:57,855 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:42:57,856 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:42:57,856 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:10 [2019-11-22 09:42:57,959 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-22 09:42:57,960 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:42:57,972 INFO L567 ElimStorePlain]: treesize reduction 4, result has 76.5 percent of original size [2019-11-22 09:42:57,973 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:42:57,973 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:13 [2019-11-22 09:42:57,992 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:42:57,992 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:42:58,172 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:42:58,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1157243468] [2019-11-22 09:42:58,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:42:58,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2019-11-22 09:42:58,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190402866] [2019-11-22 09:42:58,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-22 09:42:58,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:42:58,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-22 09:42:58,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-11-22 09:42:58,175 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 15 states. [2019-11-22 09:42:58,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:42:58,814 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2019-11-22 09:42:58,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-22 09:42:58,814 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 25 [2019-11-22 09:42:58,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:42:58,816 INFO L225 Difference]: With dead ends: 53 [2019-11-22 09:42:58,816 INFO L226 Difference]: Without dead ends: 53 [2019-11-22 09:42:58,817 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2019-11-22 09:42:58,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-22 09:42:58,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 42. [2019-11-22 09:42:58,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-22 09:42:58,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2019-11-22 09:42:58,822 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 25 [2019-11-22 09:42:58,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:42:58,822 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2019-11-22 09:42:58,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-22 09:42:58,823 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2019-11-22 09:42:58,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-22 09:42:58,824 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:58,824 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:59,027 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:59,027 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:59,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:59,028 INFO L82 PathProgramCache]: Analyzing trace with hash 498430356, now seen corresponding path program 2 times [2019-11-22 09:42:59,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:59,029 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1693398049] [2019-11-22 09:42:59,030 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:59,275 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-22 09:42:59,275 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:42:59,277 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-22 09:42:59,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:59,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:59,298 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:42:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-22 09:42:59,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1693398049] [2019-11-22 09:42:59,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:42:59,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-11-22 09:42:59,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054465436] [2019-11-22 09:42:59,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:42:59,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:42:59,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:42:59,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:42:59,329 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 5 states. [2019-11-22 09:42:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:42:59,352 INFO L93 Difference]: Finished difference Result 43 states and 47 transitions. [2019-11-22 09:42:59,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:42:59,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-22 09:42:59,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:42:59,358 INFO L225 Difference]: With dead ends: 43 [2019-11-22 09:42:59,359 INFO L226 Difference]: Without dead ends: 43 [2019-11-22 09:42:59,360 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:42:59,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-11-22 09:42:59,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2019-11-22 09:42:59,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-22 09:42:59,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2019-11-22 09:42:59,371 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 25 [2019-11-22 09:42:59,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:42:59,374 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2019-11-22 09:42:59,374 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:42:59,374 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2019-11-22 09:42:59,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-22 09:42:59,375 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:42:59,375 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:42:59,577 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:59,578 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:42:59,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:42:59,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1446021946, now seen corresponding path program 1 times [2019-11-22 09:42:59,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:42:59,579 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1192298446] [2019-11-22 09:42:59,579 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:42:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:42:59,843 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 26 conjunts are in the unsatisfiable core [2019-11-22 09:42:59,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:42:59,869 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:42:59,869 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-22 09:42:59,870 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:42:59,888 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-22 09:42:59,889 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:42:59,892 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-22 09:42:59,893 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-22 09:42:59,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:42:59,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:42:59,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:42:59,924 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:43:02,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:43:02,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-22 09:43:02,576 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:43:02,798 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-11-22 09:43:03,116 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:43:03,118 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-22 09:43:03,125 INFO L168 Benchmark]: Toolchain (without parser) took 17503.77 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 324.5 MB). Free memory was 956.3 MB in the beginning and 914.4 MB in the end (delta: 41.9 MB). Peak memory consumption was 366.4 MB. Max. memory is 11.5 GB. [2019-11-22 09:43:03,125 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 09:43:03,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 897.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -139.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-22 09:43:03,127 INFO L168 Benchmark]: Boogie Preprocessor took 117.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-22 09:43:03,127 INFO L168 Benchmark]: RCFGBuilder took 1623.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.6 MB in the end (delta: 104.7 MB). Peak memory consumption was 104.7 MB. Max. memory is 11.5 GB. [2019-11-22 09:43:03,128 INFO L168 Benchmark]: TraceAbstraction took 14860.97 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 183.0 MB). Free memory was 984.6 MB in the beginning and 914.4 MB in the end (delta: 70.1 MB). Peak memory consumption was 253.1 MB. Max. memory is 11.5 GB. [2019-11-22 09:43:03,131 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 897.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -139.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 117.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1623.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.6 MB in the end (delta: 104.7 MB). Peak memory consumption was 104.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14860.97 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 183.0 MB). Free memory was 984.6 MB in the beginning and 914.4 MB in the end (delta: 70.1 MB). Peak memory consumption was 253.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...