./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 701f399f Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 902bca7b1502ca5dcb44bb7e7d9bc6d169c57d43 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-701f399 [2019-11-22 10:07:21,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 10:07:21,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 10:07:21,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 10:07:21,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 10:07:21,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 10:07:21,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 10:07:21,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 10:07:21,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 10:07:21,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 10:07:21,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 10:07:21,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 10:07:21,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 10:07:21,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 10:07:21,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 10:07:21,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 10:07:21,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 10:07:21,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 10:07:21,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 10:07:21,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 10:07:21,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 10:07:21,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 10:07:21,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 10:07:21,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 10:07:21,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 10:07:21,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 10:07:21,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 10:07:21,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 10:07:21,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 10:07:21,206 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 10:07:21,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 10:07:21,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 10:07:21,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 10:07:21,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 10:07:21,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 10:07:21,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 10:07:21,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 10:07:21,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 10:07:21,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 10:07:21,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 10:07:21,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 10:07:21,214 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-22 10:07:21,228 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 10:07:21,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 10:07:21,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 10:07:21,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 10:07:21,230 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 10:07:21,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 10:07:21,230 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-22 10:07:21,231 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 10:07:21,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 10:07:21,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-22 10:07:21,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 10:07:21,232 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 10:07:21,232 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 10:07:21,232 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 10:07:21,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 10:07:21,232 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 10:07:21,233 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 10:07:21,233 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 10:07:21,233 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-22 10:07:21,233 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 10:07:21,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 10:07:21,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 10:07:21,234 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 10:07:21,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 10:07:21,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 10:07:21,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 10:07:21,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 10:07:21,235 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 10:07:21,235 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 10:07:21,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 10:07:21,236 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 902bca7b1502ca5dcb44bb7e7d9bc6d169c57d43 [2019-11-22 10:07:21,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 10:07:21,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 10:07:21,560 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 10:07:21,562 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 10:07:21,563 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 10:07:21,564 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-22 10:07:21,637 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc4846f10/5e0bb91cce7c427db43cdd9acbde7bbc/FLAG2d87617ad [2019-11-22 10:07:22,159 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 10:07:22,160 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_2-2.i [2019-11-22 10:07:22,177 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc4846f10/5e0bb91cce7c427db43cdd9acbde7bbc/FLAG2d87617ad [2019-11-22 10:07:22,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc4846f10/5e0bb91cce7c427db43cdd9acbde7bbc [2019-11-22 10:07:22,454 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 10:07:22,456 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 10:07:22,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 10:07:22,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 10:07:22,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 10:07:22,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:07:22" (1/1) ... [2019-11-22 10:07:22,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e3881be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:07:22, skipping insertion in model container [2019-11-22 10:07:22,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:07:22" (1/1) ... [2019-11-22 10:07:22,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 10:07:22,550 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 10:07:23,068 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 10:07:23,069 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-22 10:07:23,069 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:07:23,085 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 10:07:23,086 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-22 10:07:23,086 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:07:23,088 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 10:07:23,089 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-22 10:07:23,089 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:07:23,092 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 10:07:23,093 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-22 10:07:23,093 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:07:23,120 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 10:07:23,120 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-22 10:07:23,120 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:07:23,130 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 10:07:23,130 INFO L968 CHandler]: at location: C: (struct A17 *)ldv_malloc(sizeof(struct A17)) [767] [2019-11-22 10:07:23,131 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:07:23,138 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 10:07:23,139 INFO L968 CHandler]: at location: C: (struct A17 **)ldv_malloc(sizeof(struct A17*)*len) [789] [2019-11-22 10:07:23,139 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 10:07:23,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 10:07:23,176 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 10:07:23,200 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 10:07:23,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 10:07:23,286 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 10:07:23,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 10:07:23,445 INFO L205 MainTranslator]: Completed translation [2019-11-22 10:07:23,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:07:23 WrapperNode [2019-11-22 10:07:23,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 10:07:23,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 10:07:23,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 10:07:23,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 10:07:23,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:07:23" (1/1) ... [2019-11-22 10:07:23,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:07:23" (1/1) ... [2019-11-22 10:07:23,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:07:23" (1/1) ... [2019-11-22 10:07:23,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:07:23" (1/1) ... [2019-11-22 10:07:23,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:07:23" (1/1) ... [2019-11-22 10:07:23,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:07:23" (1/1) ... [2019-11-22 10:07:23,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:07:23" (1/1) ... [2019-11-22 10:07:23,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 10:07:23,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 10:07:23,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 10:07:23,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 10:07:23,570 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:07:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 10:07:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 10:07:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 10:07:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 10:07:23,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 10:07:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 10:07:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 10:07:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 10:07:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 10:07:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 10:07:23,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 10:07:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 10:07:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 10:07:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 10:07:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 10:07:23,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 10:07:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 10:07:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 10:07:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 10:07:23,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 10:07:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 10:07:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 10:07:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 10:07:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 10:07:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 10:07:23,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 10:07:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 10:07:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 10:07:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 10:07:23,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 10:07:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 10:07:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 10:07:23,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 10:07:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 10:07:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 10:07:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 10:07:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 10:07:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 10:07:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 10:07:23,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 10:07:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 10:07:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 10:07:23,657 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 10:07:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-22 10:07:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-22 10:07:23,658 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 10:07:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 10:07:23,659 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 10:07:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 10:07:23,660 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 10:07:23,661 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 10:07:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 10:07:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 10:07:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 10:07:23,662 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 10:07:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 10:07:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 10:07:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 10:07:23,663 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 10:07:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 10:07:23,664 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 10:07:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 10:07:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 10:07:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 10:07:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 10:07:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 10:07:23,665 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 10:07:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 10:07:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 10:07:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 10:07:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 10:07:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 10:07:23,666 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 10:07:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 10:07:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 10:07:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 10:07:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 10:07:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 10:07:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 10:07:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 10:07:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 10:07:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 10:07:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 10:07:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 10:07:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 10:07:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 10:07:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 10:07:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 10:07:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 10:07:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 10:07:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 10:07:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 10:07:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 10:07:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 10:07:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 10:07:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 10:07:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 10:07:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 10:07:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 10:07:23,671 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 10:07:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 10:07:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 10:07:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 10:07:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 10:07:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 10:07:23,673 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 10:07:23,674 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 10:07:23,677 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 10:07:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 10:07:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 10:07:23,678 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 10:07:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 10:07:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 10:07:23,679 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 10:07:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 10:07:23,680 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 10:07:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 10:07:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 10:07:23,681 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 10:07:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 10:07:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 10:07:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 10:07:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 10:07:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 10:07:23,689 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 10:07:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 10:07:23,690 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 10:07:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 10:07:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 10:07:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 10:07:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 10:07:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 10:07:23,691 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 10:07:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 10:07:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 10:07:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 10:07:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 10:07:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 10:07:23,692 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 10:07:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 10:07:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 10:07:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 10:07:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 10:07:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 10:07:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 10:07:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 10:07:23,693 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 10:07:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 10:07:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 10:07:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 10:07:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 10:07:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 10:07:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 10:07:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 10:07:23,694 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 10:07:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 10:07:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 10:07:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 10:07:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 10:07:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 10:07:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 10:07:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 10:07:23,695 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 10:07:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 10:07:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 10:07:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 10:07:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 10:07:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 10:07:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 10:07:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 10:07:23,696 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 10:07:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 10:07:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 10:07:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 10:07:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 10:07:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 10:07:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 10:07:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 10:07:23,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 10:07:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 10:07:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 10:07:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 10:07:23,698 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 10:07:23,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 10:07:23,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 10:07:23,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 10:07:23,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 10:07:23,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 10:07:23,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 10:07:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 10:07:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 10:07:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 10:07:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 10:07:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 10:07:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 10:07:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 10:07:23,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 10:07:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 10:07:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 10:07:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 10:07:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 10:07:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 10:07:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 10:07:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 10:07:23,702 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 10:07:23,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-22 10:07:23,703 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-22 10:07:23,703 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-22 10:07:23,703 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 10:07:23,703 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 10:07:23,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 10:07:23,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 10:07:23,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 10:07:23,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 10:07:23,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 10:07:23,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 10:07:23,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 10:07:23,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 10:07:23,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 10:07:24,356 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 10:07:24,766 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 10:07:25,323 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 10:07:25,323 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-22 10:07:25,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:07:25 BoogieIcfgContainer [2019-11-22 10:07:25,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 10:07:25,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 10:07:25,326 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 10:07:25,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 10:07:25,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 10:07:22" (1/3) ... [2019-11-22 10:07:25,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b0f484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:07:25, skipping insertion in model container [2019-11-22 10:07:25,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:07:23" (2/3) ... [2019-11-22 10:07:25,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63b0f484 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 10:07:25, skipping insertion in model container [2019-11-22 10:07:25,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:07:25" (3/3) ... [2019-11-22 10:07:25,336 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_2-2.i [2019-11-22 10:07:25,352 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 10:07:25,363 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-22 10:07:25,375 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-22 10:07:25,398 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 10:07:25,398 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 10:07:25,398 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 10:07:25,399 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 10:07:25,399 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 10:07:25,399 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 10:07:25,399 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 10:07:25,399 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 10:07:25,433 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states. [2019-11-22 10:07:25,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-22 10:07:25,451 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:07:25,452 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:07:25,453 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:07:25,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:07:25,460 INFO L82 PathProgramCache]: Analyzing trace with hash 78607545, now seen corresponding path program 1 times [2019-11-22 10:07:25,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:07:25,473 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [564005098] [2019-11-22 10:07:25,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:25,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:07:25,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 10:07:25,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:07:25,939 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 10:07:25,940 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:07:25,951 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:07:25,951 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 10:07:25,952 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 10:07:25,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:25,990 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:07:26,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:26,064 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [564005098] [2019-11-22 10:07:26,065 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:07:26,065 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 10:07:26,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813414834] [2019-11-22 10:07:26,072 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 10:07:26,072 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:07:26,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 10:07:26,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:07:26,090 INFO L87 Difference]: Start difference. First operand 153 states. Second operand 5 states. [2019-11-22 10:07:26,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:07:26,416 INFO L93 Difference]: Finished difference Result 93 states and 105 transitions. [2019-11-22 10:07:26,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 10:07:26,419 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-22 10:07:26,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:07:26,440 INFO L225 Difference]: With dead ends: 93 [2019-11-22 10:07:26,440 INFO L226 Difference]: Without dead ends: 90 [2019-11-22 10:07:26,457 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:07:26,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-22 10:07:26,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 86. [2019-11-22 10:07:26,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-22 10:07:26,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2019-11-22 10:07:26,528 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 22 [2019-11-22 10:07:26,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:07:26,528 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2019-11-22 10:07:26,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 10:07:26,528 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2019-11-22 10:07:26,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-22 10:07:26,531 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:07:26,531 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:07:26,736 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:26,738 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:07:26,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:07:26,738 INFO L82 PathProgramCache]: Analyzing trace with hash 78607546, now seen corresponding path program 1 times [2019-11-22 10:07:26,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:07:26,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [134101528] [2019-11-22 10:07:26,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:07:27,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-22 10:07:27,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:07:27,094 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 10:07:27,095 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:07:27,101 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:07:27,101 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 10:07:27,102 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 10:07:27,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:27,378 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:07:28,119 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:07:28,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:28,718 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [134101528] [2019-11-22 10:07:28,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:07:28,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 8] imperfect sequences [] total 17 [2019-11-22 10:07:28,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594771088] [2019-11-22 10:07:28,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-22 10:07:28,722 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:07:28,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-22 10:07:28,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-11-22 10:07:28,724 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand 18 states. [2019-11-22 10:07:30,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:07:30,396 INFO L93 Difference]: Finished difference Result 98 states and 113 transitions. [2019-11-22 10:07:30,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-22 10:07:30,398 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2019-11-22 10:07:30,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:07:30,400 INFO L225 Difference]: With dead ends: 98 [2019-11-22 10:07:30,400 INFO L226 Difference]: Without dead ends: 98 [2019-11-22 10:07:30,401 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2019-11-22 10:07:30,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-22 10:07:30,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 91. [2019-11-22 10:07:30,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-22 10:07:30,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 104 transitions. [2019-11-22 10:07:30,414 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 104 transitions. Word has length 22 [2019-11-22 10:07:30,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:07:30,414 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 104 transitions. [2019-11-22 10:07:30,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-22 10:07:30,414 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 104 transitions. [2019-11-22 10:07:30,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-22 10:07:30,415 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:07:30,415 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:07:30,618 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:30,620 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:07:30,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:07:30,621 INFO L82 PathProgramCache]: Analyzing trace with hash 966111226, now seen corresponding path program 1 times [2019-11-22 10:07:30,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:07:30,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [356968360] [2019-11-22 10:07:30,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:07:30,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-22 10:07:30,860 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:07:30,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:30,895 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:07:30,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:30,940 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [356968360] [2019-11-22 10:07:30,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:07:30,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 10:07:30,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705890329] [2019-11-22 10:07:30,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 10:07:30,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:07:30,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 10:07:30,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:07:30,942 INFO L87 Difference]: Start difference. First operand 91 states and 104 transitions. Second operand 5 states. [2019-11-22 10:07:30,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:07:30,996 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2019-11-22 10:07:30,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 10:07:30,996 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-22 10:07:30,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:07:30,998 INFO L225 Difference]: With dead ends: 90 [2019-11-22 10:07:30,998 INFO L226 Difference]: Without dead ends: 90 [2019-11-22 10:07:30,998 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:07:31,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-22 10:07:31,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-22 10:07:31,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-22 10:07:31,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2019-11-22 10:07:31,008 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 22 [2019-11-22 10:07:31,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:07:31,008 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2019-11-22 10:07:31,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 10:07:31,009 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2019-11-22 10:07:31,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-22 10:07:31,009 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:07:31,010 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:07:31,212 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:31,214 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:07:31,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:07:31,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1857306545, now seen corresponding path program 1 times [2019-11-22 10:07:31,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:07:31,216 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1144364966] [2019-11-22 10:07:31,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:07:31,470 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 10:07:31,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:07:31,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:31,507 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:07:31,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:31,604 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1144364966] [2019-11-22 10:07:31,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:07:31,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 10:07:31,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813775138] [2019-11-22 10:07:31,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 10:07:31,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:07:31,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 10:07:31,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:07:31,606 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 5 states. [2019-11-22 10:07:31,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:07:31,665 INFO L93 Difference]: Finished difference Result 90 states and 99 transitions. [2019-11-22 10:07:31,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 10:07:31,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-22 10:07:31,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:07:31,669 INFO L225 Difference]: With dead ends: 90 [2019-11-22 10:07:31,670 INFO L226 Difference]: Without dead ends: 90 [2019-11-22 10:07:31,670 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:07:31,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2019-11-22 10:07:31,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 88. [2019-11-22 10:07:31,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-11-22 10:07:31,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 97 transitions. [2019-11-22 10:07:31,691 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 97 transitions. Word has length 23 [2019-11-22 10:07:31,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:07:31,691 INFO L462 AbstractCegarLoop]: Abstraction has 88 states and 97 transitions. [2019-11-22 10:07:31,692 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 10:07:31,692 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 97 transitions. [2019-11-22 10:07:31,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-22 10:07:31,693 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:07:31,693 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:07:31,899 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:31,901 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:07:31,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:07:31,902 INFO L82 PathProgramCache]: Analyzing trace with hash -114496210, now seen corresponding path program 1 times [2019-11-22 10:07:31,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:07:31,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1363628731] [2019-11-22 10:07:31,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:07:32,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 10:07:32,131 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:07:32,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:32,144 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:07:32,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:32,208 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1363628731] [2019-11-22 10:07:32,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:07:32,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 10:07:32,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369123509] [2019-11-22 10:07:32,209 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 10:07:32,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:07:32,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 10:07:32,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 10:07:32,210 INFO L87 Difference]: Start difference. First operand 88 states and 97 transitions. Second operand 3 states. [2019-11-22 10:07:32,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:07:32,330 INFO L93 Difference]: Finished difference Result 126 states and 140 transitions. [2019-11-22 10:07:32,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 10:07:32,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-11-22 10:07:32,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:07:32,333 INFO L225 Difference]: With dead ends: 126 [2019-11-22 10:07:32,333 INFO L226 Difference]: Without dead ends: 121 [2019-11-22 10:07:32,334 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 10:07:32,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-11-22 10:07:32,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 86. [2019-11-22 10:07:32,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-22 10:07:32,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2019-11-22 10:07:32,341 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 23 [2019-11-22 10:07:32,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:07:32,342 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2019-11-22 10:07:32,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 10:07:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2019-11-22 10:07:32,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-22 10:07:32,343 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:07:32,343 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:07:32,545 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:32,546 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:07:32,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:07:32,547 INFO L82 PathProgramCache]: Analyzing trace with hash -121920454, now seen corresponding path program 1 times [2019-11-22 10:07:32,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:07:32,548 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2103038076] [2019-11-22 10:07:32,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:07:32,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-22 10:07:32,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:07:32,878 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 10:07:32,879 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:07:32,885 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:07:32,885 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 10:07:32,886 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 10:07:33,295 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 10:07:33,295 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:07:34,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-22 10:07:35,035 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2019-11-22 10:07:35,465 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 10:07:35,465 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2103038076] [2019-11-22 10:07:35,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 10:07:35,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 23 [2019-11-22 10:07:35,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625505051] [2019-11-22 10:07:35,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-22 10:07:35,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:07:35,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-22 10:07:35,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=458, Unknown=0, NotChecked=0, Total=552 [2019-11-22 10:07:35,468 INFO L87 Difference]: Start difference. First operand 86 states and 94 transitions. Second operand 24 states. [2019-11-22 10:07:37,165 WARN L192 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2019-11-22 10:07:37,506 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2019-11-22 10:07:37,898 WARN L192 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2019-11-22 10:07:38,187 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2019-11-22 10:07:39,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:07:39,844 INFO L93 Difference]: Finished difference Result 101 states and 116 transitions. [2019-11-22 10:07:39,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-11-22 10:07:39,845 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 28 [2019-11-22 10:07:39,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:07:39,847 INFO L225 Difference]: With dead ends: 101 [2019-11-22 10:07:39,847 INFO L226 Difference]: Without dead ends: 101 [2019-11-22 10:07:39,848 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=252, Invalid=938, Unknown=0, NotChecked=0, Total=1190 [2019-11-22 10:07:39,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-11-22 10:07:39,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2019-11-22 10:07:39,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2019-11-22 10:07:39,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2019-11-22 10:07:39,855 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 28 [2019-11-22 10:07:39,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:07:39,856 INFO L462 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2019-11-22 10:07:39,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-22 10:07:39,856 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2019-11-22 10:07:39,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-22 10:07:39,857 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:07:39,857 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:07:40,058 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:40,059 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:07:40,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:07:40,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1984551823, now seen corresponding path program 1 times [2019-11-22 10:07:40,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:07:40,061 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1859738266] [2019-11-22 10:07:40,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:07:40,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-22 10:07:40,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:07:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:40,459 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:07:40,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:40,653 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1859738266] [2019-11-22 10:07:40,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 10:07:40,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 14 [2019-11-22 10:07:40,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086234220] [2019-11-22 10:07:40,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-22 10:07:40,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:07:40,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-22 10:07:40,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2019-11-22 10:07:40,654 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 14 states. [2019-11-22 10:07:41,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:07:41,011 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2019-11-22 10:07:41,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-22 10:07:41,012 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2019-11-22 10:07:41,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:07:41,015 INFO L225 Difference]: With dead ends: 140 [2019-11-22 10:07:41,015 INFO L226 Difference]: Without dead ends: 137 [2019-11-22 10:07:41,015 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2019-11-22 10:07:41,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-22 10:07:41,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 99. [2019-11-22 10:07:41,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-22 10:07:41,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 111 transitions. [2019-11-22 10:07:41,025 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 111 transitions. Word has length 35 [2019-11-22 10:07:41,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:07:41,025 INFO L462 AbstractCegarLoop]: Abstraction has 99 states and 111 transitions. [2019-11-22 10:07:41,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-22 10:07:41,025 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 111 transitions. [2019-11-22 10:07:41,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-22 10:07:41,026 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:07:41,026 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:07:41,229 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:41,237 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:07:41,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:07:41,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1643543858, now seen corresponding path program 1 times [2019-11-22 10:07:41,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:07:41,238 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [188573136] [2019-11-22 10:07:41,238 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:07:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:07:41,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-22 10:07:41,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:07:41,573 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 10:07:41,573 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:07:41,575 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:07:41,575 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 10:07:41,575 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 10:07:41,671 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:07:41,672 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 41 [2019-11-22 10:07:41,673 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:07:41,694 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-22 10:07:41,695 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-22 10:07:41,695 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:15 [2019-11-22 10:07:41,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-22 10:07:41,747 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:07:42,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:07:42,018 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [188573136] [2019-11-22 10:07:42,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 10:07:42,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-22 10:07:42,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333747835] [2019-11-22 10:07:42,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 10:07:42,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:07:42,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 10:07:42,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2019-11-22 10:07:42,019 INFO L87 Difference]: Start difference. First operand 99 states and 111 transitions. Second operand 8 states. [2019-11-22 10:08:02,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:08:02,846 INFO L93 Difference]: Finished difference Result 157 states and 182 transitions. [2019-11-22 10:08:02,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-22 10:08:02,847 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2019-11-22 10:08:02,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:08:02,849 INFO L225 Difference]: With dead ends: 157 [2019-11-22 10:08:02,849 INFO L226 Difference]: Without dead ends: 157 [2019-11-22 10:08:02,850 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=83, Invalid=378, Unknown=1, NotChecked=0, Total=462 [2019-11-22 10:08:02,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-22 10:08:02,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 105. [2019-11-22 10:08:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-22 10:08:02,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2019-11-22 10:08:02,857 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 35 [2019-11-22 10:08:02,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:08:02,858 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2019-11-22 10:08:02,858 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 10:08:02,858 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2019-11-22 10:08:02,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-22 10:08:02,859 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:08:02,860 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:08:03,062 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:08:03,064 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:08:03,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:08:03,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1643543857, now seen corresponding path program 1 times [2019-11-22 10:08:03,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:08:03,066 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [510032074] [2019-11-22 10:08:03,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:08:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:08:03,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 35 conjunts are in the unsatisfiable core [2019-11-22 10:08:03,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:08:03,473 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 10:08:03,474 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:08:03,483 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:08:03,488 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 10:08:03,488 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 10:08:03,498 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:08:03,498 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 10:08:03,498 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-22 10:08:05,928 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:08:05,928 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 10:08:05,929 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:08:05,965 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:08:05,978 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-22 10:08:05,979 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 10:08:06,008 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:08:06,009 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-22 10:08:06,009 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:37, output treesize:21 [2019-11-22 10:08:06,072 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:08:06,073 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:08:06,349 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:08:06,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:08:06,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:08:06,709 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:08:12,782 WARN L192 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2019-11-22 10:08:12,786 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:08:19,377 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-11-22 10:08:21,739 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_231|], 2=[|v_#length_186|]} [2019-11-22 10:08:21,743 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-22 10:08:21,744 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:08:21,745 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:08:21,745 INFO L464 ElimStorePlain]: Eliminatee |v_#length_186| vanished before elimination [2019-11-22 10:08:21,745 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 10:08:21,745 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:30, output treesize:1 [2019-11-22 10:08:21,747 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 10:08:22,387 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-22 10:08:22,396 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 10:08:22,396 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:08:22,418 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:08:22,422 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-22 10:08:22,423 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 10:08:22,442 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:08:22,443 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 10:08:22,443 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:34, output treesize:17 [2019-11-22 10:08:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 10:08:23,354 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [510032074] [2019-11-22 10:08:23,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 10:08:23,355 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 29 [2019-11-22 10:08:23,355 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564680883] [2019-11-22 10:08:23,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-11-22 10:08:23,356 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:08:23,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-11-22 10:08:23,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=773, Unknown=6, NotChecked=0, Total=870 [2019-11-22 10:08:23,357 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 30 states. [2019-11-22 10:09:07,948 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_prenex_6 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_6))) (= c_ldv_malloc_~size |c_ldv_malloc_#in~size|) (= (_ bv0 32) |c_ldv_malloc_#res.offset|) (= (bvadd (select |c_#valid| |c_ldv_malloc_#res.base|) (_ bv1 1)) (_ bv0 1)) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (select |c_#length| |c_ldv_malloc_#res.base|) |c_ldv_malloc_#in~size|) (forall ((|v_ldv_malloc_#t~malloc12.base_35| (_ BitVec 32)) (v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32)) (ldv_malloc_~size (_ BitVec 32))) (let ((.cse0 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse1 (bvadd .cse0 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_35|) (_ bv0 1))) (not (bvule (bvadd .cse0 v_alloc_17_~array.offset_BEFORE_CALL_2) .cse1)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32)) (v_ldv_malloc_~size_42 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|)) (not (bvule (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_34| v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))) (bvule .cse1 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_35| ldv_malloc_~size) v_alloc_17_~array.base_BEFORE_CALL_4)))))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse3 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse2 (bvadd .cse3 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (bvule .cse2 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (not (bvule (bvadd .cse3 v_alloc_17_~array.offset_BEFORE_CALL_2) .cse2)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32)) (v_ldv_malloc_~size_42 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|)) (not (bvule (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_34| v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4)))))))))) is different from false [2019-11-22 10:09:40,527 WARN L192 SmtUtils]: Spent 12.27 s on a formula simplification. DAG size of input: 52 DAG size of output: 25 [2019-11-22 10:09:44,961 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd (select |c_#valid| |c_entry_point_#t~ret45.base|) (_ bv1 1)) (_ bv0 1)) (exists ((v_prenex_6 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_6))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (bvsgt c_entry_point_~len~0 (_ bv0 32)) (= |c_entry_point_#t~ret45.offset| (_ bv0 32)) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse1 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse1 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (bvule .cse0 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (not (bvule (bvadd .cse1 v_alloc_17_~array.offset_BEFORE_CALL_2) .cse0)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32)) (v_ldv_malloc_~size_42 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|)) (not (bvule (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_34| v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))))))) (= (bvmul (_ bv4 32) c_entry_point_~len~0) (select |c_#length| |c_entry_point_#t~ret45.base|))) is different from false [2019-11-22 10:09:46,815 WARN L192 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-11-22 10:09:48,144 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2019-11-22 10:09:55,576 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-22 10:10:50,406 WARN L192 SmtUtils]: Spent 22.31 s on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-11-22 10:11:20,710 WARN L192 SmtUtils]: Spent 17.48 s on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-11-22 10:12:07,223 WARN L192 SmtUtils]: Spent 16.35 s on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-11-22 10:12:35,543 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv1 1) (select |c_#valid| c_alloc_17_~array.base)) (exists ((v_prenex_6 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_6))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse1 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse1 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (bvule .cse0 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (not (bvule (bvadd .cse1 v_alloc_17_~array.offset_BEFORE_CALL_2) .cse0)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32)) (v_ldv_malloc_~size_42 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|)) (not (bvule (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_34| v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))))))) (= c_alloc_17_~array.offset (_ bv0 32)) (= (_ bv0 32) c_alloc_17_~i~0) (exists ((entry_point_~len~0 (_ BitVec 32))) (and (not (bvslt (_ bv1 32) entry_point_~len~0)) (= (bvmul (_ bv4 32) entry_point_~len~0) (select |c_#length| c_alloc_17_~array.base)) (bvsgt entry_point_~len~0 (_ bv0 32))))) is different from false [2019-11-22 10:14:22,715 WARN L192 SmtUtils]: Spent 28.30 s on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2019-11-22 10:14:56,458 WARN L192 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2019-11-22 10:15:02,239 WARN L192 SmtUtils]: Spent 646.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-11-22 10:15:30,470 WARN L192 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2019-11-22 10:16:48,782 WARN L192 SmtUtils]: Spent 10.17 s on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2019-11-22 10:16:49,207 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-11-22 10:17:09,730 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_prenex_6 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_6))) (or (bvule |c_alloc_17_#in~array.offset| (bvadd |c_alloc_17_#in~array.offset| (_ bv4 32))) (forall ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32))) (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_34|) (_ bv0 1))))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= |c_#valid| |c_old(#valid)|) (forall ((v_ldv_malloc_~size_42 (_ BitVec 32)) (v_prenex_8 (_ BitVec 32))) (or (bvule (bvadd |c_alloc_17_#in~array.offset| (_ bv4 32)) (select (store |c_#length| v_prenex_8 v_ldv_malloc_~size_42) |c_alloc_17_#in~array.base|)) (not (= (select |c_#valid| v_prenex_8) (_ bv0 1))))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse1 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse1 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (bvule .cse0 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (not (bvule (bvadd .cse1 v_alloc_17_~array.offset_BEFORE_CALL_2) .cse0)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32)) (v_ldv_malloc_~size_42 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|)) (not (bvule (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_34| v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))))))) (= |c_old(#length)| |c_#length|)) is different from false [2019-11-22 10:17:14,408 WARN L192 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-11-22 10:17:16,498 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_prenex_6 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_6))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= |c_#valid| |c_old(#valid)|) (exists ((entry_point_~len~0 (_ BitVec 32))) (and (not (bvslt (_ bv1 32) entry_point_~len~0)) (bvsgt entry_point_~len~0 (_ bv0 32)) (= (bvmul (_ bv4 32) entry_point_~len~0) (select |c_#length| |c_alloc_17_#in~array.base|)))) (forall ((v_alloc_17_~i~0_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.offset_BEFORE_CALL_2 (_ BitVec 32)) (v_alloc_17_~array.base_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse1 (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)))) (let ((.cse0 (bvadd .cse1 v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)))) (or (bvule .cse0 (select |c_#length| v_alloc_17_~array.base_BEFORE_CALL_4)) (not (bvule (bvadd .cse1 v_alloc_17_~array.offset_BEFORE_CALL_2) .cse0)) (exists ((|v_ldv_malloc_#t~malloc12.base_34| (_ BitVec 32)) (v_ldv_malloc_~size_42 (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_34|)) (not (bvule (bvadd (bvmul v_alloc_17_~i~0_BEFORE_CALL_2 (_ bv4 32)) v_alloc_17_~array.offset_BEFORE_CALL_2 (_ bv4 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_34| v_ldv_malloc_~size_42) v_alloc_17_~array.base_BEFORE_CALL_4))))))))) (= |c_old(#length)| |c_#length|) (= (_ bv1 1) (select |c_#valid| |c_alloc_17_#in~array.base|)) (= |c_alloc_17_#in~array.offset| (_ bv0 32))) is different from false [2019-11-22 10:17:34,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:17:34,626 INFO L93 Difference]: Finished difference Result 270 states and 330 transitions. [2019-11-22 10:17:34,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-11-22 10:17:34,626 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 35 [2019-11-22 10:17:34,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:17:34,630 INFO L225 Difference]: With dead ends: 270 [2019-11-22 10:17:34,630 INFO L226 Difference]: Without dead ends: 270 [2019-11-22 10:17:34,631 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 38 SyntacticMatches, 5 SemanticMatches, 60 ConstructedPredicates, 5 IntricatePredicates, 2 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 255.8s TimeCoverageRelationStatistics Valid=338, Invalid=2829, Unknown=45, NotChecked=570, Total=3782 [2019-11-22 10:17:34,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2019-11-22 10:17:34,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 161. [2019-11-22 10:17:34,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-11-22 10:17:34,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 209 transitions. [2019-11-22 10:17:34,644 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 209 transitions. Word has length 35 [2019-11-22 10:17:34,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:17:34,644 INFO L462 AbstractCegarLoop]: Abstraction has 161 states and 209 transitions. [2019-11-22 10:17:34,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-11-22 10:17:34,645 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 209 transitions. [2019-11-22 10:17:34,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-22 10:17:34,646 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:17:34,646 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:17:34,849 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:17:34,850 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:17:34,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:17:34,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1102273563, now seen corresponding path program 1 times [2019-11-22 10:17:34,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:17:34,852 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1570880236] [2019-11-22 10:17:34,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:17:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:17:35,099 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 10:17:35,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:17:35,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-22 10:17:35,118 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:17:35,150 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-22 10:17:35,151 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1570880236] [2019-11-22 10:17:35,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:17:35,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 10:17:35,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912950599] [2019-11-22 10:17:35,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 10:17:35,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:17:35,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 10:17:35,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:17:35,153 INFO L87 Difference]: Start difference. First operand 161 states and 209 transitions. Second operand 5 states. [2019-11-22 10:17:35,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:17:35,203 INFO L93 Difference]: Finished difference Result 169 states and 218 transitions. [2019-11-22 10:17:35,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 10:17:35,204 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-11-22 10:17:35,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:17:35,206 INFO L225 Difference]: With dead ends: 169 [2019-11-22 10:17:35,206 INFO L226 Difference]: Without dead ends: 169 [2019-11-22 10:17:35,207 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-22 10:17:35,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-11-22 10:17:35,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 160. [2019-11-22 10:17:35,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-11-22 10:17:35,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 206 transitions. [2019-11-22 10:17:35,220 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 206 transitions. Word has length 37 [2019-11-22 10:17:35,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:17:35,221 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 206 transitions. [2019-11-22 10:17:35,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 10:17:35,221 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 206 transitions. [2019-11-22 10:17:35,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-11-22 10:17:35,224 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:17:35,224 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:17:35,425 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:17:35,426 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:17:35,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:17:35,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1449883398, now seen corresponding path program 1 times [2019-11-22 10:17:35,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:17:35,427 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1636390884] [2019-11-22 10:17:35,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:17:35,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:17:35,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-22 10:17:35,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:17:35,732 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-22 10:17:35,732 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:17:35,761 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-22 10:17:35,761 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1636390884] [2019-11-22 10:17:35,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:17:35,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-22 10:17:35,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206451742] [2019-11-22 10:17:35,763 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 10:17:35,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:17:35,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 10:17:35,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-22 10:17:35,763 INFO L87 Difference]: Start difference. First operand 160 states and 206 transitions. Second operand 6 states. [2019-11-22 10:17:35,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:17:35,875 INFO L93 Difference]: Finished difference Result 173 states and 217 transitions. [2019-11-22 10:17:35,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 10:17:35,875 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-11-22 10:17:35,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:17:35,878 INFO L225 Difference]: With dead ends: 173 [2019-11-22 10:17:35,878 INFO L226 Difference]: Without dead ends: 173 [2019-11-22 10:17:35,878 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-22 10:17:35,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2019-11-22 10:17:35,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 160. [2019-11-22 10:17:35,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-11-22 10:17:35,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 204 transitions. [2019-11-22 10:17:35,890 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 204 transitions. Word has length 37 [2019-11-22 10:17:35,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:17:35,890 INFO L462 AbstractCegarLoop]: Abstraction has 160 states and 204 transitions. [2019-11-22 10:17:35,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 10:17:35,891 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 204 transitions. [2019-11-22 10:17:35,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-22 10:17:35,892 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:17:35,892 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:17:36,095 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:17:36,096 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:17:36,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:17:36,097 INFO L82 PathProgramCache]: Analyzing trace with hash -2061012070, now seen corresponding path program 1 times [2019-11-22 10:17:36,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:17:36,098 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [860496252] [2019-11-22 10:17:36,099 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 10:17:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:17:36,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-22 10:17:36,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:17:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-22 10:17:36,424 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:17:36,463 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-22 10:17:36,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [860496252] [2019-11-22 10:17:36,463 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 10:17:36,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 10:17:36,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137822477] [2019-11-22 10:17:36,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 10:17:36,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:17:36,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 10:17:36,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:17:36,465 INFO L87 Difference]: Start difference. First operand 160 states and 204 transitions. Second operand 5 states. [2019-11-22 10:17:36,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:17:36,494 INFO L93 Difference]: Finished difference Result 137 states and 163 transitions. [2019-11-22 10:17:36,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 10:17:36,495 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 38 [2019-11-22 10:17:36,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:17:36,496 INFO L225 Difference]: With dead ends: 137 [2019-11-22 10:17:36,496 INFO L226 Difference]: Without dead ends: 137 [2019-11-22 10:17:36,497 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 10:17:36,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-22 10:17:36,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2019-11-22 10:17:36,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-11-22 10:17:36,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 160 transitions. [2019-11-22 10:17:36,503 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 160 transitions. Word has length 38 [2019-11-22 10:17:36,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:17:36,504 INFO L462 AbstractCegarLoop]: Abstraction has 135 states and 160 transitions. [2019-11-22 10:17:36,504 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 10:17:36,504 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 160 transitions. [2019-11-22 10:17:36,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-22 10:17:36,506 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:17:36,506 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:17:36,709 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:17:36,710 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:17:36,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:17:36,710 INFO L82 PathProgramCache]: Analyzing trace with hash -41475270, now seen corresponding path program 2 times [2019-11-22 10:17:36,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:17:36,711 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1989803316] [2019-11-22 10:17:36,712 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:17:37,085 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-22 10:17:37,085 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 10:17:37,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-22 10:17:37,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:17:37,127 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 10:17:37,127 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:17:37,134 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:17:37,134 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 10:17:37,134 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 10:17:37,978 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 10:17:37,978 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:17:39,896 WARN L192 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2019-11-22 10:17:40,305 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-11-22 10:17:40,779 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-11-22 10:17:41,772 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-11-22 10:17:42,913 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-22 10:17:43,866 WARN L192 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-11-22 10:17:44,730 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 10:17:44,731 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1989803316] [2019-11-22 10:17:44,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 10:17:44,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 33 [2019-11-22 10:17:44,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953431044] [2019-11-22 10:17:44,732 INFO L442 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-11-22 10:17:44,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 10:17:44,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-11-22 10:17:44,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=920, Unknown=0, NotChecked=0, Total=1122 [2019-11-22 10:17:44,733 INFO L87 Difference]: Start difference. First operand 135 states and 160 transitions. Second operand 34 states. [2019-11-22 10:17:46,131 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-22 10:17:46,830 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-22 10:17:47,551 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-22 10:17:48,328 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2019-11-22 10:17:49,016 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2019-11-22 10:17:49,673 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2019-11-22 10:17:52,950 WARN L192 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-11-22 10:17:54,720 WARN L192 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 88 DAG size of output: 28 [2019-11-22 10:17:57,190 WARN L192 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2019-11-22 10:17:59,146 WARN L192 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 28 [2019-11-22 10:18:01,269 WARN L192 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-11-22 10:18:03,098 WARN L192 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 27 [2019-11-22 10:18:05,008 WARN L192 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 41 [2019-11-22 10:18:06,593 WARN L192 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 28 [2019-11-22 10:18:08,165 WARN L192 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2019-11-22 10:18:09,201 WARN L192 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 28 [2019-11-22 10:18:10,161 WARN L192 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2019-11-22 10:18:11,672 WARN L192 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2019-11-22 10:18:12,315 WARN L192 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2019-11-22 10:18:14,336 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2019-11-22 10:18:17,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 10:18:17,211 INFO L93 Difference]: Finished difference Result 169 states and 222 transitions. [2019-11-22 10:18:17,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-11-22 10:18:17,213 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 40 [2019-11-22 10:18:17,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 10:18:17,215 INFO L225 Difference]: With dead ends: 169 [2019-11-22 10:18:17,215 INFO L226 Difference]: Without dead ends: 169 [2019-11-22 10:18:17,216 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 32.5s TimeCoverageRelationStatistics Valid=879, Invalid=2781, Unknown=0, NotChecked=0, Total=3660 [2019-11-22 10:18:17,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2019-11-22 10:18:17,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 159. [2019-11-22 10:18:17,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-11-22 10:18:17,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 192 transitions. [2019-11-22 10:18:17,233 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 192 transitions. Word has length 40 [2019-11-22 10:18:17,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 10:18:17,234 INFO L462 AbstractCegarLoop]: Abstraction has 159 states and 192 transitions. [2019-11-22 10:18:17,234 INFO L463 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-11-22 10:18:17,234 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 192 transitions. [2019-11-22 10:18:17,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-22 10:18:17,235 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 10:18:17,235 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 10:18:17,439 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:18:17,440 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 10:18:17,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 10:18:17,441 INFO L82 PathProgramCache]: Analyzing trace with hash -541551802, now seen corresponding path program 1 times [2019-11-22 10:18:17,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 10:18:17,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1269508465] [2019-11-22 10:18:17,442 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 10:18:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 10:18:17,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-22 10:18:17,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 10:18:17,746 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 10:18:17,747 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 10:18:17,751 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 10:18:17,751 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 10:18:17,751 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 10:18:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-22 10:18:17,820 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 10:18:18,089 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 10:18:18,091 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-22 10:18:18,096 INFO L168 Benchmark]: Toolchain (without parser) took 655640.80 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 262.7 MB). Free memory was 955.0 MB in the beginning and 853.8 MB in the end (delta: 101.2 MB). Peak memory consumption was 363.8 MB. Max. memory is 11.5 GB. [2019-11-22 10:18:18,097 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 10:18:18,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 989.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -126.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-22 10:18:18,098 INFO L168 Benchmark]: Boogie Preprocessor took 121.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-22 10:18:18,098 INFO L168 Benchmark]: RCFGBuilder took 1755.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.4 MB in the end (delta: 118.6 MB). Peak memory consumption was 118.6 MB. Max. memory is 11.5 GB. [2019-11-22 10:18:18,099 INFO L168 Benchmark]: TraceAbstraction took 652768.98 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 129.0 MB). Free memory was 956.4 MB in the beginning and 853.8 MB in the end (delta: 102.6 MB). Peak memory consumption was 231.6 MB. Max. memory is 11.5 GB. [2019-11-22 10:18:18,100 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 989.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -126.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 121.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1755.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.4 MB in the end (delta: 118.6 MB). Peak memory consumption was 118.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 652768.98 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 129.0 MB). Free memory was 956.4 MB in the beginning and 853.8 MB in the end (delta: 102.6 MB). Peak memory consumption was 231.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...