./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.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_test17_1-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 85051d52521692aaf1a0de9e5f8f895724c83314 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:36:27,016 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 09:36:27,019 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 09:36:27,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 09:36:27,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 09:36:27,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 09:36:27,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 09:36:27,036 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 09:36:27,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 09:36:27,043 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 09:36:27,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 09:36:27,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 09:36:27,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 09:36:27,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 09:36:27,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 09:36:27,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 09:36:27,059 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 09:36:27,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 09:36:27,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 09:36:27,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 09:36:27,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 09:36:27,074 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 09:36:27,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 09:36:27,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 09:36:27,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 09:36:27,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 09:36:27,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 09:36:27,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 09:36:27,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 09:36:27,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 09:36:27,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 09:36:27,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 09:36:27,091 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 09:36:27,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 09:36:27,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 09:36:27,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 09:36:27,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 09:36:27,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 09:36:27,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 09:36:27,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 09:36:27,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 09:36:27,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-22 09:36:27,122 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 09:36:27,123 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 09:36:27,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 09:36:27,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 09:36:27,124 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 09:36:27,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 09:36:27,127 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 09:36:27,127 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 09:36:27,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 09:36:27,128 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 09:36:27,128 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 09:36:27,128 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 09:36:27,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 09:36:27,129 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 09:36:27,129 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 09:36:27,129 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:27,129 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 09:36:27,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 09:36:27,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 09:36:27,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 09:36:27,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 09:36:27,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 09:36:27,135 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 09:36:27,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 09:36:27,136 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 09:36:27,136 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 09:36:27,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 09:36:27,137 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85051d52521692aaf1a0de9e5f8f895724c83314 [2019-11-22 09:36:27,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 09:36:27,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 09:36:27,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 09:36:27,480 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 09:36:27,481 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 09:36:27,482 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2019-11-22 09:36:27,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6110a3f49/665e387e69e1489e813c24bc55ce4229/FLAGefc352ae7 [2019-11-22 09:36:28,078 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 09:36:28,079 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-1.i [2019-11-22 09:36:28,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6110a3f49/665e387e69e1489e813c24bc55ce4229/FLAGefc352ae7 [2019-11-22 09:36:28,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6110a3f49/665e387e69e1489e813c24bc55ce4229 [2019-11-22 09:36:28,367 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 09:36:28,369 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 09:36:28,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 09:36:28,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 09:36:28,375 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 09:36:28,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:36:28" (1/1) ... [2019-11-22 09:36:28,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d57adf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:28, skipping insertion in model container [2019-11-22 09:36:28,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:36:28" (1/1) ... [2019-11-22 09:36:28,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 09:36:28,450 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:36:28,916 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 09:36:28,917 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-22 09:36:28,917 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:28,942 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 09:36:28,943 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-22 09:36:28,943 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:28,947 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 09:36:28,948 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-22 09:36:28,948 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:28,951 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 09:36:28,952 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-22 09:36:28,952 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:28,994 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 09:36:28,994 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-22 09:36:28,994 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:29,003 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 09:36:29,003 INFO L968 CHandler]: at location: C: (struct A17 *)ldv_malloc(sizeof(struct A17)) [766] [2019-11-22 09:36:29,004 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:29,009 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 09:36:29,010 INFO L968 CHandler]: at location: C: (struct A17 **)ldv_malloc(sizeof(struct A17*)*len) [787] [2019-11-22 09:36:29,010 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:29,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:36:29,047 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 09:36:29,072 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:36:29,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:36:29,157 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 09:36:29,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:36:29,311 INFO L205 MainTranslator]: Completed translation [2019-11-22 09:36:29,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:29 WrapperNode [2019-11-22 09:36:29,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 09:36:29,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 09:36:29,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 09:36:29,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 09:36:29,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:29" (1/1) ... [2019-11-22 09:36:29,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:29" (1/1) ... [2019-11-22 09:36:29,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:29" (1/1) ... [2019-11-22 09:36:29,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:29" (1/1) ... [2019-11-22 09:36:29,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:29" (1/1) ... [2019-11-22 09:36:29,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:29" (1/1) ... [2019-11-22 09:36:29,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:29" (1/1) ... [2019-11-22 09:36:29,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 09:36:29,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 09:36:29,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 09:36:29,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 09:36:29,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:29" (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 09:36:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 09:36:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 09:36:29,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 09:36:29,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 09:36:29,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 09:36:29,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 09:36:29,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 09:36:29,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 09:36:29,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 09:36:29,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 09:36:29,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 09:36:29,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 09:36:29,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 09:36:29,479 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 09:36:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 09:36:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 09:36:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 09:36:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 09:36:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 09:36:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 09:36:29,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 09:36:29,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 09:36:29,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 09:36:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 09:36:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 09:36:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 09:36:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 09:36:29,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 09:36:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 09:36:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 09:36:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 09:36:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 09:36:29,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 09:36:29,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 09:36:29,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 09:36:29,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 09:36:29,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 09:36:29,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 09:36:29,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 09:36:29,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 09:36:29,486 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 09:36:29,486 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 09:36:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-22 09:36:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-22 09:36:29,487 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 09:36:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 09:36:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 09:36:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 09:36:29,488 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 09:36:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 09:36:29,489 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 09:36:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 09:36:29,490 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 09:36:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 09:36:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 09:36:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 09:36:29,491 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 09:36:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 09:36:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 09:36:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 09:36:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 09:36:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 09:36:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 09:36:29,492 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 09:36:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 09:36:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 09:36:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 09:36:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 09:36:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 09:36:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 09:36:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 09:36:29,493 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 09:36:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 09:36:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 09:36:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 09:36:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 09:36:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 09:36:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 09:36:29,494 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 09:36:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 09:36:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 09:36:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 09:36:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 09:36:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 09:36:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 09:36:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 09:36:29,495 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 09:36:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 09:36:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 09:36:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 09:36:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 09:36:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 09:36:29,496 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 09:36:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 09:36:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 09:36:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 09:36:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 09:36:29,497 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 09:36:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 09:36:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 09:36:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 09:36:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 09:36:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 09:36:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 09:36:29,498 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 09:36:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 09:36:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 09:36:29,499 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 09:36:29,500 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 09:36:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 09:36:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 09:36:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 09:36:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 09:36:29,504 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 09:36:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 09:36:29,505 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 09:36:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 09:36:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 09:36:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 09:36:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 09:36:29,506 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 09:36:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 09:36:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 09:36:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 09:36:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 09:36:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 09:36:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 09:36:29,514 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 09:36:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 09:36:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 09:36:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 09:36:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 09:36:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 09:36:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 09:36:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 09:36:29,515 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 09:36:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 09:36:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 09:36:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 09:36:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 09:36:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 09:36:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 09:36:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 09:36:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 09:36:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 09:36:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 09:36:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 09:36:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 09:36:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 09:36:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 09:36:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 09:36:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 09:36:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 09:36:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 09:36:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 09:36:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 09:36:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 09:36:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 09:36:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 09:36:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 09:36:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 09:36:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 09:36:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 09:36:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 09:36:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 09:36:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 09:36:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 09:36:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 09:36:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 09:36:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 09:36:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 09:36:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 09:36:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 09:36:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 09:36:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 09:36:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 09:36:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 09:36:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 09:36:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 09:36:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 09:36:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 09:36:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 09:36:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 09:36:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 09:36:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 09:36:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 09:36:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 09:36:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 09:36:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 09:36:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 09:36:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 09:36:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 09:36:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 09:36:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 09:36:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 09:36:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 09:36:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 09:36:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 09:36:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 09:36:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 09:36:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 09:36:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 09:36:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 09:36:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 09:36:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-22 09:36:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-22 09:36:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 09:36:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 09:36:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 09:36:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 09:36:29,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 09:36:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 09:36:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 09:36:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 09:36:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 09:36:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 09:36:29,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 09:36:30,222 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 09:36:30,598 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 09:36:31,153 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 09:36:31,154 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-22 09:36:31,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:36:31 BoogieIcfgContainer [2019-11-22 09:36:31,156 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 09:36:31,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 09:36:31,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 09:36:31,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 09:36:31,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:36:28" (1/3) ... [2019-11-22 09:36:31,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603a4ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:36:31, skipping insertion in model container [2019-11-22 09:36:31,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:29" (2/3) ... [2019-11-22 09:36:31,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@603a4ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:36:31, skipping insertion in model container [2019-11-22 09:36:31,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:36:31" (3/3) ... [2019-11-22 09:36:31,166 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-1.i [2019-11-22 09:36:31,176 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 09:36:31,187 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 87 error locations. [2019-11-22 09:36:31,199 INFO L249 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2019-11-22 09:36:31,223 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 09:36:31,228 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 09:36:31,228 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 09:36:31,228 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 09:36:31,228 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 09:36:31,229 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 09:36:31,229 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 09:36:31,229 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 09:36:31,260 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2019-11-22 09:36:31,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 09:36:31,269 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:31,270 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:31,271 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:31,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:31,276 INFO L82 PathProgramCache]: Analyzing trace with hash -200276895, now seen corresponding path program 1 times [2019-11-22 09:36:31,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:31,288 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1175022307] [2019-11-22 09:36:31,288 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 09:36:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:36:31,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-22 09:36:31,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:31,733 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 09:36:31,734 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:36:31,742 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:36:31,742 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:36:31,743 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:36:31,818 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 09:36:31,818 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:32,634 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 09:36:32,640 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1175022307] [2019-11-22 09:36:32,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:36:32,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-22 09:36:32,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739864831] [2019-11-22 09:36:32,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-22 09:36:32,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:32,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-22 09:36:32,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-22 09:36:32,671 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 14 states. [2019-11-22 09:36:34,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:34,179 INFO L93 Difference]: Finished difference Result 93 states and 107 transitions. [2019-11-22 09:36:34,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-22 09:36:34,181 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-22 09:36:34,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:34,193 INFO L225 Difference]: With dead ends: 93 [2019-11-22 09:36:34,194 INFO L226 Difference]: Without dead ends: 90 [2019-11-22 09:36:34,196 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2019-11-22 09:36:34,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-22 09:36:34,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 77. [2019-11-22 09:36:34,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-22 09:36:34,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2019-11-22 09:36:34,281 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 16 [2019-11-22 09:36:34,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:34,282 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2019-11-22 09:36:34,282 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-22 09:36:34,282 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2019-11-22 09:36:34,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 09:36:34,284 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:34,284 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:34,487 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:34,488 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:34,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:34,490 INFO L82 PathProgramCache]: Analyzing trace with hash -200276896, now seen corresponding path program 1 times [2019-11-22 09:36:34,491 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:34,491 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [410271542] [2019-11-22 09:36:34,491 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 09:36:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:36:34,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:36:34,768 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:34,775 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 09:36:34,775 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:36:34,779 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:36:34,779 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:36:34,779 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:36:34,802 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 09:36:34,802 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:34,846 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 09:36:34,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [410271542] [2019-11-22 09:36:34,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:36:34,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 09:36:34,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663504660] [2019-11-22 09:36:34,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:36:34,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:34,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:36:34,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:36:34,856 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand 5 states. [2019-11-22 09:36:35,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:35,030 INFO L93 Difference]: Finished difference Result 83 states and 95 transitions. [2019-11-22 09:36:35,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:36:35,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 09:36:35,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:35,032 INFO L225 Difference]: With dead ends: 83 [2019-11-22 09:36:35,033 INFO L226 Difference]: Without dead ends: 83 [2019-11-22 09:36:35,033 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 09:36:35,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-11-22 09:36:35,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 79. [2019-11-22 09:36:35,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-11-22 09:36:35,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 91 transitions. [2019-11-22 09:36:35,044 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 91 transitions. Word has length 16 [2019-11-22 09:36:35,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:35,045 INFO L462 AbstractCegarLoop]: Abstraction has 79 states and 91 transitions. [2019-11-22 09:36:35,045 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:36:35,045 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 91 transitions. [2019-11-22 09:36:35,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 09:36:35,046 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:35,046 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:35,249 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:35,250 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:35,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:35,250 INFO L82 PathProgramCache]: Analyzing trace with hash 687226786, now seen corresponding path program 1 times [2019-11-22 09:36:35,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:35,251 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1604710115] [2019-11-22 09:36:35,251 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 09:36:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:36:35,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-22 09:36:35,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:35,519 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 09:36:35,520 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:35,551 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 09:36:35,552 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1604710115] [2019-11-22 09:36:35,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:36:35,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 09:36:35,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609732] [2019-11-22 09:36:35,553 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:36:35,553 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:35,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:36:35,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:36:35,553 INFO L87 Difference]: Start difference. First operand 79 states and 91 transitions. Second operand 5 states. [2019-11-22 09:36:35,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:35,587 INFO L93 Difference]: Finished difference Result 78 states and 87 transitions. [2019-11-22 09:36:35,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:36:35,589 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 09:36:35,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:35,590 INFO L225 Difference]: With dead ends: 78 [2019-11-22 09:36:35,591 INFO L226 Difference]: Without dead ends: 78 [2019-11-22 09:36:35,591 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 09:36:35,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-22 09:36:35,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2019-11-22 09:36:35,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-22 09:36:35,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 85 transitions. [2019-11-22 09:36:35,599 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 85 transitions. Word has length 16 [2019-11-22 09:36:35,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:35,599 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 85 transitions. [2019-11-22 09:36:35,599 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:36:35,600 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 85 transitions. [2019-11-22 09:36:35,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 09:36:35,600 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:35,600 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:35,804 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:35,806 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:35,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:35,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1913632700, now seen corresponding path program 1 times [2019-11-22 09:36:35,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:35,807 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1130740820] [2019-11-22 09:36:35,807 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 09:36:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:36:36,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:36:36,022 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:36,044 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 09:36:36,044 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:36,129 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 09:36:36,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1130740820] [2019-11-22 09:36:36,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:36:36,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 09:36:36,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303581138] [2019-11-22 09:36:36,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:36:36,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:36,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:36:36,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:36:36,131 INFO L87 Difference]: Start difference. First operand 76 states and 85 transitions. Second operand 5 states. [2019-11-22 09:36:36,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:36,172 INFO L93 Difference]: Finished difference Result 78 states and 86 transitions. [2019-11-22 09:36:36,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:36:36,173 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-22 09:36:36,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:36,174 INFO L225 Difference]: With dead ends: 78 [2019-11-22 09:36:36,174 INFO L226 Difference]: Without dead ends: 78 [2019-11-22 09:36:36,175 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:36:36,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-22 09:36:36,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2019-11-22 09:36:36,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-11-22 09:36:36,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 84 transitions. [2019-11-22 09:36:36,183 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 84 transitions. Word has length 17 [2019-11-22 09:36:36,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:36,183 INFO L462 AbstractCegarLoop]: Abstraction has 76 states and 84 transitions. [2019-11-22 09:36:36,184 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:36:36,184 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 84 transitions. [2019-11-22 09:36:36,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 09:36:36,185 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:36,185 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:36,393 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:36,395 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:36,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:36,395 INFO L82 PathProgramCache]: Analyzing trace with hash -170822365, now seen corresponding path program 1 times [2019-11-22 09:36:36,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:36,397 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1285194427] [2019-11-22 09:36:36,397 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 09:36:36,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:36:36,627 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 09:36:36,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:36,638 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 09:36:36,638 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:36,689 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 09:36:36,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1285194427] [2019-11-22 09:36:36,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:36:36,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 09:36:36,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325308711] [2019-11-22 09:36:36,690 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 09:36:36,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:36,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 09:36:36,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 09:36:36,692 INFO L87 Difference]: Start difference. First operand 76 states and 84 transitions. Second operand 3 states. [2019-11-22 09:36:36,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:36,830 INFO L93 Difference]: Finished difference Result 114 states and 127 transitions. [2019-11-22 09:36:36,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 09:36:36,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-22 09:36:36,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:36,831 INFO L225 Difference]: With dead ends: 114 [2019-11-22 09:36:36,831 INFO L226 Difference]: Without dead ends: 109 [2019-11-22 09:36:36,832 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 09:36:36,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-22 09:36:36,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 74. [2019-11-22 09:36:36,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2019-11-22 09:36:36,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2019-11-22 09:36:36,839 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 17 [2019-11-22 09:36:36,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:36,840 INFO L462 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2019-11-22 09:36:36,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 09:36:36,840 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2019-11-22 09:36:36,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-22 09:36:36,841 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:36,841 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:37,043 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:37,044 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:37,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:37,045 INFO L82 PathProgramCache]: Analyzing trace with hash -73256383, now seen corresponding path program 1 times [2019-11-22 09:36:37,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:37,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1899465484] [2019-11-22 09:36:37,046 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 09:36:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:36:37,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-22 09:36:37,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:37,340 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 09:36:37,341 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:36:37,345 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:36:37,346 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:36:37,346 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:36:37,455 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:37,456 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:38,484 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:38,484 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1899465484] [2019-11-22 09:36:38,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:36:38,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-22 09:36:38,485 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883342741] [2019-11-22 09:36:38,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-22 09:36:38,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:38,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-22 09:36:38,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-11-22 09:36:38,487 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand 18 states. [2019-11-22 09:36:39,184 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2019-11-22 09:36:40,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:40,356 INFO L93 Difference]: Finished difference Result 91 states and 104 transitions. [2019-11-22 09:36:40,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-22 09:36:40,357 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2019-11-22 09:36:40,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:40,359 INFO L225 Difference]: With dead ends: 91 [2019-11-22 09:36:40,359 INFO L226 Difference]: Without dead ends: 91 [2019-11-22 09:36:40,359 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2019-11-22 09:36:40,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-11-22 09:36:40,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 86. [2019-11-22 09:36:40,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-22 09:36:40,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 95 transitions. [2019-11-22 09:36:40,367 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 95 transitions. Word has length 22 [2019-11-22 09:36:40,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:40,367 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 95 transitions. [2019-11-22 09:36:40,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-22 09:36:40,368 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 95 transitions. [2019-11-22 09:36:40,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-22 09:36:40,369 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:40,369 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:40,580 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:40,580 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:40,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:40,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1067902475, now seen corresponding path program 1 times [2019-11-22 09:36:40,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:40,582 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1821272615] [2019-11-22 09:36:40,582 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 09:36:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:36:40,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 09:36:40,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:40,958 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:41,089 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:41,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1821272615] [2019-11-22 09:36:41,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:36:41,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-22 09:36:41,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532930624] [2019-11-22 09:36:41,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-22 09:36:41,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:41,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-22 09:36:41,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-22 09:36:41,091 INFO L87 Difference]: Start difference. First operand 86 states and 95 transitions. Second operand 12 states. [2019-11-22 09:36:41,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:41,464 INFO L93 Difference]: Finished difference Result 92 states and 98 transitions. [2019-11-22 09:36:41,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-22 09:36:41,464 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-11-22 09:36:41,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:41,465 INFO L225 Difference]: With dead ends: 92 [2019-11-22 09:36:41,466 INFO L226 Difference]: Without dead ends: 92 [2019-11-22 09:36:41,466 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-22 09:36:41,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-22 09:36:41,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2019-11-22 09:36:41,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-22 09:36:41,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 98 transitions. [2019-11-22 09:36:41,474 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 98 transitions. Word has length 35 [2019-11-22 09:36:41,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:41,475 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 98 transitions. [2019-11-22 09:36:41,475 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-22 09:36:41,475 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 98 transitions. [2019-11-22 09:36:41,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-22 09:36:41,476 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:41,476 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:41,687 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:41,688 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:41,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:41,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1190057473, now seen corresponding path program 2 times [2019-11-22 09:36:41,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:41,689 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2089772658] [2019-11-22 09:36:41,689 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:42,011 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-22 09:36:42,011 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:36:42,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-22 09:36:42,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:42,040 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 09:36:42,040 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:36:42,046 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:36:42,046 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:36:42,047 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:36:42,271 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:42,271 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:44,260 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:44,260 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2089772658] [2019-11-22 09:36:44,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:36:44,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2019-11-22 09:36:44,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561376197] [2019-11-22 09:36:44,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-22 09:36:44,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:44,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-22 09:36:44,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2019-11-22 09:36:44,262 INFO L87 Difference]: Start difference. First operand 91 states and 98 transitions. Second operand 26 states. [2019-11-22 09:36:46,377 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-11-22 09:36:47,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:47,245 INFO L93 Difference]: Finished difference Result 102 states and 113 transitions. [2019-11-22 09:36:47,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-22 09:36:47,246 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2019-11-22 09:36:47,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:47,247 INFO L225 Difference]: With dead ends: 102 [2019-11-22 09:36:47,247 INFO L226 Difference]: Without dead ends: 102 [2019-11-22 09:36:47,249 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-22 09:36:47,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-22 09:36:47,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2019-11-22 09:36:47,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-22 09:36:47,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2019-11-22 09:36:47,254 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 34 [2019-11-22 09:36:47,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:47,254 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2019-11-22 09:36:47,254 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-22 09:36:47,255 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2019-11-22 09:36:47,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-22 09:36:47,256 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:47,256 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:47,457 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:47,457 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:47,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:47,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1336138177, now seen corresponding path program 3 times [2019-11-22 09:36:47,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:47,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2006208567] [2019-11-22 09:36:47,459 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:48,062 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-22 09:36:48,063 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:36:48,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 30 conjunts are in the unsatisfiable core [2019-11-22 09:36:48,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:48,095 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 09:36:48,095 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:36:48,102 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:36:48,103 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:36:48,103 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:36:48,790 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:48,790 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:50,199 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-11-22 09:36:51,530 WARN L192 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 28 [2019-11-22 09:36:51,876 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-11-22 09:36:52,270 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-11-22 09:36:53,188 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-11-22 09:36:54,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-22 09:36:55,776 WARN L192 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-11-22 09:36:56,594 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:56,595 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2006208567] [2019-11-22 09:36:56,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:36:56,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21] total 38 [2019-11-22 09:36:56,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552892511] [2019-11-22 09:36:56,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-11-22 09:36:56,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:56,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-11-22 09:36:56,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=1097, Unknown=0, NotChecked=0, Total=1406 [2019-11-22 09:36:56,598 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand 38 states. [2019-11-22 09:36:57,475 WARN L192 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2019-11-22 09:36:58,239 WARN L192 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-22 09:37:02,441 WARN L192 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 134 [2019-11-22 09:37:04,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:04,852 INFO L93 Difference]: Finished difference Result 96 states and 101 transitions. [2019-11-22 09:37:04,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-22 09:37:04,853 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 46 [2019-11-22 09:37:04,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:04,854 INFO L225 Difference]: With dead ends: 96 [2019-11-22 09:37:04,854 INFO L226 Difference]: Without dead ends: 96 [2019-11-22 09:37:04,856 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 50 SyntacticMatches, 6 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 469 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=358, Invalid=1364, Unknown=0, NotChecked=0, Total=1722 [2019-11-22 09:37:04,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2019-11-22 09:37:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2019-11-22 09:37:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-11-22 09:37:04,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 101 transitions. [2019-11-22 09:37:04,861 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 101 transitions. Word has length 46 [2019-11-22 09:37:04,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:04,862 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 101 transitions. [2019-11-22 09:37:04,862 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-11-22 09:37:04,862 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 101 transitions. [2019-11-22 09:37:04,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-22 09:37:04,864 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:04,864 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:05,069 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:05,069 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:05,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:05,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1488841808, now seen corresponding path program 2 times [2019-11-22 09:37:05,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:05,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1955158519] [2019-11-22 09:37:05,072 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:05,340 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-22 09:37:05,340 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:37:05,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:37:05,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:05,398 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 09:37:05,399 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:05,477 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 09:37:05,477 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1955158519] [2019-11-22 09:37:05,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:05,477 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-22 09:37:05,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727038522] [2019-11-22 09:37:05,478 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-22 09:37:05,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:05,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-22 09:37:05,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-22 09:37:05,479 INFO L87 Difference]: Start difference. First operand 96 states and 101 transitions. Second operand 7 states. [2019-11-22 09:37:05,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:05,590 INFO L93 Difference]: Finished difference Result 127 states and 136 transitions. [2019-11-22 09:37:05,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 09:37:05,591 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-22 09:37:05,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:05,592 INFO L225 Difference]: With dead ends: 127 [2019-11-22 09:37:05,593 INFO L226 Difference]: Without dead ends: 124 [2019-11-22 09:37:05,593 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-22 09:37:05,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-11-22 09:37:05,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 97. [2019-11-22 09:37:05,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-22 09:37:05,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 102 transitions. [2019-11-22 09:37:05,598 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 102 transitions. Word has length 56 [2019-11-22 09:37:05,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:05,598 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 102 transitions. [2019-11-22 09:37:05,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-22 09:37:05,598 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 102 transitions. [2019-11-22 09:37:05,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-22 09:37:05,600 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:05,600 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:05,800 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:05,801 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:05,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:05,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1051535094, now seen corresponding path program 1 times [2019-11-22 09:37:05,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:05,802 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [662479938] [2019-11-22 09:37:05,802 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 09:37:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:06,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-22 09:37:06,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:06,239 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 09:37:06,239 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:06,242 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:06,242 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:06,243 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:37:06,344 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:06,345 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-22 09:37:06,345 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:06,370 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-22 09:37:06,371 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 09:37:06,371 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-22 09:37:06,414 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 09:37:06,414 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:08,856 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-22 09:37:08,856 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [662479938] [2019-11-22 09:37:08,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 09:37:08,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-22 09:37:08,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526643302] [2019-11-22 09:37:08,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 09:37:08,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:08,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 09:37:08,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=173, Unknown=1, NotChecked=0, Total=210 [2019-11-22 09:37:08,859 INFO L87 Difference]: Start difference. First operand 97 states and 102 transitions. Second operand 8 states. [2019-11-22 09:37:23,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:23,660 INFO L93 Difference]: Finished difference Result 153 states and 170 transitions. [2019-11-22 09:37:23,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-22 09:37:23,661 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-22 09:37:23,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:23,663 INFO L225 Difference]: With dead ends: 153 [2019-11-22 09:37:23,663 INFO L226 Difference]: Without dead ends: 153 [2019-11-22 09:37:23,664 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=83, Invalid=378, Unknown=1, NotChecked=0, Total=462 [2019-11-22 09:37:23,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-22 09:37:23,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 103. [2019-11-22 09:37:23,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-22 09:37:23,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 112 transitions. [2019-11-22 09:37:23,670 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 112 transitions. Word has length 56 [2019-11-22 09:37:23,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:23,671 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 112 transitions. [2019-11-22 09:37:23,671 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 09:37:23,671 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 112 transitions. [2019-11-22 09:37:23,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-22 09:37:23,672 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:23,673 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:23,877 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:23,878 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:23,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:23,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1051535093, now seen corresponding path program 1 times [2019-11-22 09:37:23,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:23,881 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [763581110] [2019-11-22 09:37:23,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:24,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-22 09:37:24,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:24,339 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 09:37:24,339 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:24,347 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:24,352 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 09:37:24,353 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:24,364 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:24,364 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:24,365 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-22 09:37:26,546 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-22 09:37:26,548 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 09:37:26,548 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:26,564 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:26,574 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:26,575 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-22 09:37:26,575 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:26,591 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:26,591 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:26,592 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2019-11-22 09:37:26,629 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 09:37:26,629 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:26,836 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:37:27,297 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:37:27,297 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:37:27,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:37:29,217 WARN L192 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2019-11-22 09:37:29,226 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:37:34,950 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_254|], 2=[|v_#length_218|]} [2019-11-22 09:37:34,958 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-22 09:37:34,959 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:34,967 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:34,974 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-22 09:37:34,975 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:34,983 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:34,984 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:34,984 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-22 09:37:35,541 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-22 09:37:35,548 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-22 09:37:35,549 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:35,567 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:35,571 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-22 09:37:35,572 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:35,586 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:35,587 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-22 09:37:35,587 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-22 09:37:35,740 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 09:37:35,740 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [763581110] [2019-11-22 09:37:35,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:37:35,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-22 09:37:35,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981862419] [2019-11-22 09:37:35,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-22 09:37:35,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:35,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-22 09:37:35,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=407, Unknown=2, NotChecked=0, Total=462 [2019-11-22 09:37:35,741 INFO L87 Difference]: Start difference. First operand 103 states and 112 transitions. Second operand 22 states. [2019-11-22 09:37:45,782 WARN L192 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 56 [2019-11-22 09:37:46,923 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2019-11-22 09:37:54,381 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-22 09:38:01,645 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2019-11-22 09:38:09,871 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-22 09:38:16,250 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-11-22 09:38:19,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:38:19,155 INFO L93 Difference]: Finished difference Result 214 states and 245 transitions. [2019-11-22 09:38:19,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-22 09:38:19,156 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-22 09:38:19,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:38:19,159 INFO L225 Difference]: With dead ends: 214 [2019-11-22 09:38:19,159 INFO L226 Difference]: Without dead ends: 214 [2019-11-22 09:38:19,159 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=162, Invalid=1096, Unknown=2, NotChecked=0, Total=1260 [2019-11-22 09:38:19,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2019-11-22 09:38:19,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 113. [2019-11-22 09:38:19,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-11-22 09:38:19,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 129 transitions. [2019-11-22 09:38:19,168 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 129 transitions. Word has length 56 [2019-11-22 09:38:19,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:38:19,169 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 129 transitions. [2019-11-22 09:38:19,169 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-22 09:38:19,169 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 129 transitions. [2019-11-22 09:38:19,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-22 09:38:19,170 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:38:19,171 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:38:19,375 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:19,376 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:38:19,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:38:19,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1207954601, now seen corresponding path program 1 times [2019-11-22 09:38:19,377 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:38:19,377 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [570389068] [2019-11-22 09:38:19,377 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 09:38:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:38:19,662 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:38:19,664 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:38:19,683 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-22 09:38:19,683 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:38:19,734 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-22 09:38:19,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [570389068] [2019-11-22 09:38:19,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:38:19,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 09:38:19,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677403249] [2019-11-22 09:38:19,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:38:19,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:38:19,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:38:19,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:38:19,737 INFO L87 Difference]: Start difference. First operand 113 states and 129 transitions. Second operand 5 states. [2019-11-22 09:38:19,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:38:19,800 INFO L93 Difference]: Finished difference Result 133 states and 153 transitions. [2019-11-22 09:38:19,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 09:38:19,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-22 09:38:19,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:38:19,802 INFO L225 Difference]: With dead ends: 133 [2019-11-22 09:38:19,802 INFO L226 Difference]: Without dead ends: 133 [2019-11-22 09:38:19,802 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-22 09:38:19,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-11-22 09:38:19,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 117. [2019-11-22 09:38:19,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-11-22 09:38:19,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 132 transitions. [2019-11-22 09:38:19,811 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 132 transitions. Word has length 58 [2019-11-22 09:38:19,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:38:19,812 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 132 transitions. [2019-11-22 09:38:19,812 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:38:19,812 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 132 transitions. [2019-11-22 09:38:19,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-22 09:38:19,813 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:38:19,814 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:38:20,016 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:20,020 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:38:20,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:38:20,020 INFO L82 PathProgramCache]: Analyzing trace with hash 534855734, now seen corresponding path program 1 times [2019-11-22 09:38:20,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:38:20,020 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [815684098] [2019-11-22 09:38:20,021 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:20,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:38:20,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-22 09:38:20,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:38:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-22 09:38:20,456 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:38:20,497 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-22 09:38:20,498 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [815684098] [2019-11-22 09:38:20,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:38:20,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-22 09:38:20,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569734996] [2019-11-22 09:38:20,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 09:38:20,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:38:20,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 09:38:20,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-22 09:38:20,499 INFO L87 Difference]: Start difference. First operand 117 states and 132 transitions. Second operand 6 states. [2019-11-22 09:38:20,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:38:20,602 INFO L93 Difference]: Finished difference Result 124 states and 139 transitions. [2019-11-22 09:38:20,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:38:20,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-22 09:38:20,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:38:20,604 INFO L225 Difference]: With dead ends: 124 [2019-11-22 09:38:20,604 INFO L226 Difference]: Without dead ends: 124 [2019-11-22 09:38:20,605 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-22 09:38:20,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-11-22 09:38:20,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 119. [2019-11-22 09:38:20,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-11-22 09:38:20,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 134 transitions. [2019-11-22 09:38:20,613 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 134 transitions. Word has length 58 [2019-11-22 09:38:20,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:38:20,614 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 134 transitions. [2019-11-22 09:38:20,614 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 09:38:20,614 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 134 transitions. [2019-11-22 09:38:20,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-22 09:38:20,616 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:38:20,616 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:38:20,820 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:20,820 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr1REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:38:20,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:38:20,821 INFO L82 PathProgramCache]: Analyzing trace with hash 926469409, now seen corresponding path program 1 times [2019-11-22 09:38:20,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:38:20,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1004484714] [2019-11-22 09:38:20,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:38:21,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-22 09:38:21,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:38:21,240 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 09:38:21,240 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:21,242 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:21,242 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:21,242 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:38:21,298 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 09:38:21,298 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:38:21,572 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:21,574 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-22 09:38:21,579 INFO L168 Benchmark]: Toolchain (without parser) took 113211.05 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 332.9 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -74.1 MB). Peak memory consumption was 258.8 MB. Max. memory is 11.5 GB. [2019-11-22 09:38:21,580 INFO L168 Benchmark]: CDTParser took 1.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 09:38:21,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 942.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-22 09:38:21,581 INFO L168 Benchmark]: Boogie Preprocessor took 110.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-22 09:38:21,581 INFO L168 Benchmark]: RCFGBuilder took 1732.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.2 MB in the end (delta: 117.6 MB). Peak memory consumption was 117.6 MB. Max. memory is 11.5 GB. [2019-11-22 09:38:21,581 INFO L168 Benchmark]: TraceAbstraction took 110419.90 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 974.2 MB in the beginning and 1.0 GB in the end (delta: -49.5 MB). Peak memory consumption was 140.2 MB. Max. memory is 11.5 GB. [2019-11-22 09:38:21,584 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 942.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 110.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1732.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 974.2 MB in the end (delta: 117.6 MB). Peak memory consumption was 117.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 110419.90 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 974.2 MB in the beginning and 1.0 GB in the end (delta: -49.5 MB). Peak memory consumption was 140.2 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...