./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b5699aa Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4e7f10697bf40be831ee927139b8f7b8ae344247 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-21 21:20:23,247 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 21:20:23,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 21:20:23,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 21:20:23,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 21:20:23,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 21:20:23,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 21:20:23,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 21:20:23,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 21:20:23,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 21:20:23,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 21:20:23,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 21:20:23,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 21:20:23,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 21:20:23,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 21:20:23,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 21:20:23,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 21:20:23,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 21:20:23,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 21:20:23,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 21:20:23,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 21:20:23,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 21:20:23,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 21:20:23,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 21:20:23,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 21:20:23,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 21:20:23,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 21:20:23,305 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 21:20:23,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 21:20:23,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 21:20:23,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 21:20:23,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 21:20:23,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 21:20:23,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 21:20:23,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 21:20:23,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 21:20:23,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 21:20:23,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 21:20:23,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 21:20:23,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 21:20:23,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 21:20:23,323 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 21:20:23,344 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 21:20:23,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 21:20:23,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 21:20:23,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 21:20:23,347 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 21:20:23,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 21:20:23,347 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 21:20:23,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 21:20:23,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 21:20:23,348 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 21:20:23,349 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 21:20:23,350 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 21:20:23,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 21:20:23,350 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-21 21:20:23,350 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 21:20:23,351 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 21:20:23,351 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 21:20:23,351 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 21:20:23,351 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 21:20:23,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 21:20:23,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 21:20:23,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 21:20:23,352 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 21:20:23,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 21:20:23,353 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 21:20:23,353 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 21:20:23,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 21:20:23,353 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e7f10697bf40be831ee927139b8f7b8ae344247 [2019-11-21 21:20:23,651 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 21:20:23,671 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 21:20:23,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 21:20:23,676 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 21:20:23,676 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 21:20:23,677 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-21 21:20:23,743 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41b154333/296e319b19364b38b1a7d6164a64b5fc/FLAG198c16ba0 [2019-11-21 21:20:24,333 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 21:20:24,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-21 21:20:24,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41b154333/296e319b19364b38b1a7d6164a64b5fc/FLAG198c16ba0 [2019-11-21 21:20:24,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41b154333/296e319b19364b38b1a7d6164a64b5fc [2019-11-21 21:20:24,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 21:20:24,609 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 21:20:24,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 21:20:24,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 21:20:24,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 21:20:24,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:20:24" (1/1) ... [2019-11-21 21:20:24,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7475fdf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:20:24, skipping insertion in model container [2019-11-21 21:20:24,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:20:24" (1/1) ... [2019-11-21 21:20:24,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 21:20:24,683 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 21:20:25,122 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 [2019-11-21 21:20:25,123 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 21:20:25,123 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:20:25,139 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 [2019-11-21 21:20:25,139 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 21:20:25,140 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:20:25,142 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 [2019-11-21 21:20:25,143 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 21:20:25,143 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:20:25,146 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 [2019-11-21 21:20:25,147 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 21:20:25,147 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:20:25,171 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 [2019-11-21 21:20:25,172 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 21:20:25,172 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:20:25,182 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 [2019-11-21 21:20:25,182 INFO L968 CHandler]: at location: C: (struct A17 *)ldv_malloc(sizeof(struct A17)) [766] [2019-11-21 21:20:25,183 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:20:25,189 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 [2019-11-21 21:20:25,189 INFO L968 CHandler]: at location: C: (struct A17 **)ldv_malloc(sizeof(struct A17*)*len) [787] [2019-11-21 21:20:25,190 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:20:25,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:20:25,224 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 21:20:25,240 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 21:20:25,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:20:25,360 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 21:20:25,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:20:25,507 INFO L205 MainTranslator]: Completed translation [2019-11-21 21:20:25,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:20:25 WrapperNode [2019-11-21 21:20:25,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 21:20:25,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 21:20:25,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 21:20:25,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 21:20:25,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:20:25" (1/1) ... [2019-11-21 21:20:25,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:20:25" (1/1) ... [2019-11-21 21:20:25,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:20:25" (1/1) ... [2019-11-21 21:20:25,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:20:25" (1/1) ... [2019-11-21 21:20:25,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:20:25" (1/1) ... [2019-11-21 21:20:25,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:20:25" (1/1) ... [2019-11-21 21:20:25,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:20:25" (1/1) ... [2019-11-21 21:20:25,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 21:20:25,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 21:20:25,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 21:20:25,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 21:20:25,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:20:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 21:20:25,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 21:20:25,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 21:20:25,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 21:20:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-21 21:20:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 21:20:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 21:20:25,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 21:20:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 21:20:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 21:20:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 21:20:25,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 21:20:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 21:20:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 21:20:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 21:20:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 21:20:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 21:20:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 21:20:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 21:20:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 21:20:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 21:20:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 21:20:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 21:20:25,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 21:20:25,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 21:20:25,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 21:20:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 21:20:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 21:20:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 21:20:25,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 21:20:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 21:20:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 21:20:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 21:20:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 21:20:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 21:20:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 21:20:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 21:20:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 21:20:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 21:20:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 21:20:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 21:20:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 21:20:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 21:20:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-21 21:20:25,698 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-21 21:20:25,698 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 21:20:25,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 21:20:25,699 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 21:20:25,699 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 21:20:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 21:20:25,702 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 21:20:25,702 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 21:20:25,703 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 21:20:25,703 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 21:20:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 21:20:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 21:20:25,704 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 21:20:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 21:20:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 21:20:25,705 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 21:20:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 21:20:25,706 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 21:20:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 21:20:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 21:20:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 21:20:25,707 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 21:20:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 21:20:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 21:20:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 21:20:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 21:20:25,708 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 21:20:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 21:20:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 21:20:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 21:20:25,709 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 21:20:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 21:20:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 21:20:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 21:20:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 21:20:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 21:20:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 21:20:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 21:20:25,710 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 21:20:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 21:20:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 21:20:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 21:20:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 21:20:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 21:20:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 21:20:25,711 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 21:20:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 21:20:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 21:20:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 21:20:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 21:20:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 21:20:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 21:20:25,712 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 21:20:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 21:20:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 21:20:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 21:20:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 21:20:25,713 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 21:20:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 21:20:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 21:20:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 21:20:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 21:20:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 21:20:25,714 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 21:20:25,715 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 21:20:25,716 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 21:20:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 21:20:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 21:20:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 21:20:25,719 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 21:20:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 21:20:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 21:20:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 21:20:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 21:20:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 21:20:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 21:20:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 21:20:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 21:20:25,729 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 21:20:25,729 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 21:20:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 21:20:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 21:20:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 21:20:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 21:20:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 21:20:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 21:20:25,730 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 21:20:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 21:20:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 21:20:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 21:20:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 21:20:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 21:20:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 21:20:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 21:20:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 21:20:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 21:20:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 21:20:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 21:20:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 21:20:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 21:20:25,733 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 21:20:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 21:20:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 21:20:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 21:20:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 21:20:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 21:20:25,734 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 21:20:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 21:20:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 21:20:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 21:20:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 21:20:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 21:20:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 21:20:25,735 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 21:20:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 21:20:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 21:20:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 21:20:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 21:20:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 21:20:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 21:20:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 21:20:25,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 21:20:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 21:20:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 21:20:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 21:20:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 21:20:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 21:20:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 21:20:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 21:20:25,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 21:20:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 21:20:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 21:20:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 21:20:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 21:20:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 21:20:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 21:20:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 21:20:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 21:20:25,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 21:20:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 21:20:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 21:20:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 21:20:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 21:20:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 21:20:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 21:20:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 21:20:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 21:20:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 21:20:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 21:20:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 21:20:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 21:20:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 21:20:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 21:20:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 21:20:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 21:20:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 21:20:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 21:20:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 21:20:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 21:20:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 21:20:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 21:20:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-21 21:20:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-21 21:20:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 21:20:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 21:20:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 21:20:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 21:20:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 21:20:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 21:20:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-21 21:20:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 21:20:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 21:20:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 21:20:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 21:20:26,369 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 21:20:26,761 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 21:20:27,267 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 21:20:27,267 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-21 21:20:27,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:20:27 BoogieIcfgContainer [2019-11-21 21:20:27,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 21:20:27,270 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 21:20:27,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 21:20:27,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 21:20:27,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:20:24" (1/3) ... [2019-11-21 21:20:27,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494d8346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:20:27, skipping insertion in model container [2019-11-21 21:20:27,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:20:25" (2/3) ... [2019-11-21 21:20:27,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494d8346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:20:27, skipping insertion in model container [2019-11-21 21:20:27,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:20:27" (3/3) ... [2019-11-21 21:20:27,278 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-2.i [2019-11-21 21:20:27,287 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 21:20:27,295 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-21 21:20:27,305 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-21 21:20:27,327 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 21:20:27,332 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 21:20:27,332 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 21:20:27,333 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 21:20:27,333 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 21:20:27,333 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 21:20:27,333 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 21:20:27,333 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 21:20:27,364 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-11-21 21:20:27,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 21:20:27,374 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:20:27,375 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:20:27,376 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:20:27,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:20:27,382 INFO L82 PathProgramCache]: Analyzing trace with hash -67233649, now seen corresponding path program 1 times [2019-11-21 21:20:27,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:20:27,395 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [133809174] [2019-11-21 21:20:27,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:20:27,716 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 21:20:27,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:20:27,798 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:20:27,799 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:20:27,810 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:20:27,810 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:20:27,811 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 21:20:27,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:27,855 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:20:27,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:27,929 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [133809174] [2019-11-21 21:20:27,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:20:27,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 21:20:27,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142850590] [2019-11-21 21:20:27,937 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 21:20:27,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:20:27,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 21:20:27,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:20:27,956 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 5 states. [2019-11-21 21:20:28,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:20:28,217 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2019-11-21 21:20:28,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:20:28,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 21:20:28,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:20:28,231 INFO L225 Difference]: With dead ends: 87 [2019-11-21 21:20:28,232 INFO L226 Difference]: Without dead ends: 84 [2019-11-21 21:20:28,234 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:20:28,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-21 21:20:28,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2019-11-21 21:20:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-21 21:20:28,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2019-11-21 21:20:28,285 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 16 [2019-11-21 21:20:28,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:20:28,286 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2019-11-21 21:20:28,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 21:20:28,286 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2019-11-21 21:20:28,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 21:20:28,288 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:20:28,288 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:20:28,492 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:28,494 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:20:28,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:20:28,495 INFO L82 PathProgramCache]: Analyzing trace with hash -67233648, now seen corresponding path program 1 times [2019-11-21 21:20:28,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:20:28,496 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [197229133] [2019-11-21 21:20:28,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:20:28,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 21:20:28,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:20:28,829 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:20:28,829 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:20:28,835 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:20:28,836 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:20:28,836 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 21:20:28,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:28,913 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:20:29,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:29,724 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [197229133] [2019-11-21 21:20:29,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:20:29,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-21 21:20:29,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913527819] [2019-11-21 21:20:29,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 21:20:29,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:20:29,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 21:20:29,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-21 21:20:29,728 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 14 states. [2019-11-21 21:20:31,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:20:31,318 INFO L93 Difference]: Finished difference Result 95 states and 111 transitions. [2019-11-21 21:20:31,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 21:20:31,319 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-21 21:20:31,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:20:31,322 INFO L225 Difference]: With dead ends: 95 [2019-11-21 21:20:31,322 INFO L226 Difference]: Without dead ends: 95 [2019-11-21 21:20:31,323 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2019-11-21 21:20:31,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-21 21:20:31,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 85. [2019-11-21 21:20:31,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-21 21:20:31,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2019-11-21 21:20:31,334 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 16 [2019-11-21 21:20:31,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:20:31,335 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2019-11-21 21:20:31,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 21:20:31,335 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2019-11-21 21:20:31,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-21 21:20:31,336 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:20:31,336 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:20:31,537 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:31,540 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:20:31,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:20:31,541 INFO L82 PathProgramCache]: Analyzing trace with hash 820270032, now seen corresponding path program 1 times [2019-11-21 21:20:31,542 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:20:31,542 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [736443052] [2019-11-21 21:20:31,543 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:20:31,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 21:20:31,793 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:20:31,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:31,828 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:20:31,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:31,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [736443052] [2019-11-21 21:20:31,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:20:31,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 21:20:31,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029015605] [2019-11-21 21:20:31,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 21:20:31,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:20:31,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 21:20:31,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:20:31,869 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand 5 states. [2019-11-21 21:20:31,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:20:31,909 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-11-21 21:20:31,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:20:31,910 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-21 21:20:31,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:20:31,911 INFO L225 Difference]: With dead ends: 84 [2019-11-21 21:20:31,911 INFO L226 Difference]: Without dead ends: 84 [2019-11-21 21:20:31,912 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:20:31,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-21 21:20:31,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-21 21:20:31,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-21 21:20:31,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2019-11-21 21:20:31,921 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 16 [2019-11-21 21:20:31,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:20:31,922 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2019-11-21 21:20:31,922 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 21:20:31,922 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2019-11-21 21:20:31,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 21:20:31,923 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:20:31,923 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:20:32,135 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:32,138 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:20:32,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:20:32,139 INFO L82 PathProgramCache]: Analyzing trace with hash -2083416263, now seen corresponding path program 1 times [2019-11-21 21:20:32,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:20:32,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [729776107] [2019-11-21 21:20:32,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:20:32,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 21:20:32,341 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:20:32,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:32,360 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:20:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:32,429 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [729776107] [2019-11-21 21:20:32,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:20:32,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 21:20:32,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378482251] [2019-11-21 21:20:32,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 21:20:32,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:20:32,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 21:20:32,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:20:32,430 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2019-11-21 21:20:32,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:20:32,495 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-11-21 21:20:32,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:20:32,498 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 21:20:32,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:20:32,499 INFO L225 Difference]: With dead ends: 84 [2019-11-21 21:20:32,499 INFO L226 Difference]: Without dead ends: 84 [2019-11-21 21:20:32,499 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:20:32,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-21 21:20:32,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-21 21:20:32,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-21 21:20:32,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2019-11-21 21:20:32,510 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 17 [2019-11-21 21:20:32,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:20:32,510 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2019-11-21 21:20:32,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 21:20:32,510 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2019-11-21 21:20:32,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 21:20:32,511 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:20:32,511 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:20:32,715 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:32,716 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:20:32,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:20:32,717 INFO L82 PathProgramCache]: Analyzing trace with hash -340605928, now seen corresponding path program 1 times [2019-11-21 21:20:32,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:20:32,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2078502763] [2019-11-21 21:20:32,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:20:32,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 21:20:32,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:20:32,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:32,948 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:20:33,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:33,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2078502763] [2019-11-21 21:20:33,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:20:33,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 21:20:33,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89997690] [2019-11-21 21:20:33,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 21:20:33,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:20:33,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 21:20:33,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 21:20:33,004 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 3 states. [2019-11-21 21:20:33,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:20:33,178 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-11-21 21:20:33,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 21:20:33,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-21 21:20:33,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:20:33,180 INFO L225 Difference]: With dead ends: 120 [2019-11-21 21:20:33,181 INFO L226 Difference]: Without dead ends: 115 [2019-11-21 21:20:33,181 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 21:20:33,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-21 21:20:33,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 80. [2019-11-21 21:20:33,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-21 21:20:33,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-11-21 21:20:33,199 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 17 [2019-11-21 21:20:33,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:20:33,199 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-11-21 21:20:33,200 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 21:20:33,200 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-11-21 21:20:33,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-21 21:20:33,201 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:20:33,201 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:20:33,404 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:33,405 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:20:33,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:20:33,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1976385840, now seen corresponding path program 1 times [2019-11-21 21:20:33,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:20:33,407 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [644023278] [2019-11-21 21:20:33,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:33,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:20:33,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 16 conjunts are in the unsatisfiable core [2019-11-21 21:20:33,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:20:33,720 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:20:33,721 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:20:33,726 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:20:33,726 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:20:33,727 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 21:20:33,860 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:33,860 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:20:34,833 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:20:35,159 WARN L192 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-21 21:20:35,566 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:35,566 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [644023278] [2019-11-21 21:20:35,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 21:20:35,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 18 [2019-11-21 21:20:35,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141261358] [2019-11-21 21:20:35,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-21 21:20:35,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:20:35,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-21 21:20:35,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-21 21:20:35,569 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 19 states. [2019-11-21 21:20:36,486 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-11-21 21:20:37,114 WARN L192 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 21:20:40,784 WARN L192 SmtUtils]: Spent 3.51 s on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 21:20:41,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:20:41,732 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2019-11-21 21:20:41,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-21 21:20:41,734 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 22 [2019-11-21 21:20:41,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:20:41,736 INFO L225 Difference]: With dead ends: 97 [2019-11-21 21:20:41,736 INFO L226 Difference]: Without dead ends: 97 [2019-11-21 21:20:41,737 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=165, Invalid=705, Unknown=0, NotChecked=0, Total=870 [2019-11-21 21:20:41,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-21 21:20:41,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2019-11-21 21:20:41,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-21 21:20:41,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2019-11-21 21:20:41,745 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 22 [2019-11-21 21:20:41,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:20:41,746 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2019-11-21 21:20:41,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-21 21:20:41,746 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2019-11-21 21:20:41,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-21 21:20:41,749 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:20:41,749 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:20:41,957 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:41,957 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:20:41,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:20:41,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1887639459, now seen corresponding path program 1 times [2019-11-21 21:20:41,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:20:41,958 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1334289426] [2019-11-21 21:20:41,958 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:20:42,287 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 21:20:42,289 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:20:42,350 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:42,350 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:20:42,480 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:42,481 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1334289426] [2019-11-21 21:20:42,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 21:20:42,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 21:20:42,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414070347] [2019-11-21 21:20:42,482 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-21 21:20:42,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:20:42,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-21 21:20:42,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-21 21:20:42,482 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand 12 states. [2019-11-21 21:20:42,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:20:42,891 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2019-11-21 21:20:42,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 21:20:42,892 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-11-21 21:20:42,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:20:42,894 INFO L225 Difference]: With dead ends: 98 [2019-11-21 21:20:42,894 INFO L226 Difference]: Without dead ends: 98 [2019-11-21 21:20:42,894 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-21 21:20:42,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-21 21:20:42,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2019-11-21 21:20:42,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-21 21:20:42,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2019-11-21 21:20:42,915 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 35 [2019-11-21 21:20:42,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:20:42,915 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2019-11-21 21:20:42,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-21 21:20:42,916 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2019-11-21 21:20:42,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-21 21:20:42,917 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:20:42,917 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:20:43,117 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:43,118 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:20:43,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:20:43,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1668351152, now seen corresponding path program 2 times [2019-11-21 21:20:43,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:20:43,120 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [240073290] [2019-11-21 21:20:43,120 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:43,501 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 21:20:43,501 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 21:20:43,504 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-21 21:20:43,506 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:20:43,527 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:20:43,528 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:20:43,535 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:20:43,535 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:20:43,536 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 21:20:43,761 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:43,762 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:20:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:45,969 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [240073290] [2019-11-21 21:20:45,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 21:20:45,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2019-11-21 21:20:45,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606491119] [2019-11-21 21:20:45,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-21 21:20:45,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:20:45,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-21 21:20:45,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2019-11-21 21:20:45,971 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand 26 states. [2019-11-21 21:20:47,375 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-11-21 21:20:47,667 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2019-11-21 21:20:48,426 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-11-21 21:20:49,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:20:49,478 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2019-11-21 21:20:49,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-21 21:20:49,479 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2019-11-21 21:20:49,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:20:49,481 INFO L225 Difference]: With dead ends: 108 [2019-11-21 21:20:49,481 INFO L226 Difference]: Without dead ends: 108 [2019-11-21 21:20:49,482 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-21 21:20:49,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-11-21 21:20:49,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2019-11-21 21:20:49,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-21 21:20:49,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2019-11-21 21:20:49,489 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 34 [2019-11-21 21:20:49,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:20:49,489 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2019-11-21 21:20:49,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-21 21:20:49,490 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2019-11-21 21:20:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-21 21:20:49,491 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:20:49,491 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:20:49,694 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:49,695 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:20:49,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:20:49,696 INFO L82 PathProgramCache]: Analyzing trace with hash -67864624, now seen corresponding path program 3 times [2019-11-21 21:20:49,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:20:49,697 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1768682901] [2019-11-21 21:20:49,698 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:20:50,263 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-21 21:20:50,263 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 21:20:50,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-21 21:20:50,269 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:20:50,296 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:20:50,296 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:20:50,318 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:20:50,319 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:20:50,319 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 21:20:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:51,021 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:20:51,606 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2019-11-21 21:20:52,851 WARN L192 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-11-21 21:20:53,257 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 21:20:53,663 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2019-11-21 21:20:54,293 WARN L192 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2019-11-21 21:20:54,761 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 21:20:55,192 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2019-11-21 21:20:56,195 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-11-21 21:20:56,777 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2019-11-21 21:20:57,179 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2019-11-21 21:20:58,030 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 21:20:58,928 WARN L192 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-11-21 21:20:59,821 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:20:59,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1768682901] [2019-11-21 21:20:59,821 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 21:20:59,821 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 39 [2019-11-21 21:20:59,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374003348] [2019-11-21 21:20:59,822 INFO L442 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-11-21 21:20:59,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:20:59,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-11-21 21:20:59,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=324, Invalid=1158, Unknown=0, NotChecked=0, Total=1482 [2019-11-21 21:20:59,824 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand 39 states. [2019-11-21 21:21:00,777 WARN L192 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-11-21 21:21:01,545 WARN L192 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2019-11-21 21:21:08,774 WARN L192 SmtUtils]: Spent 4.91 s on a formula simplification. DAG size of input: 150 DAG size of output: 149 [2019-11-21 21:21:11,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:21:11,889 INFO L93 Difference]: Finished difference Result 102 states and 107 transitions. [2019-11-21 21:21:11,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-21 21:21:11,892 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 46 [2019-11-21 21:21:11,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:21:11,893 INFO L225 Difference]: With dead ends: 102 [2019-11-21 21:21:11,893 INFO L226 Difference]: Without dead ends: 102 [2019-11-21 21:21:11,894 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 48 SyntacticMatches, 7 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 15.7s TimeCoverageRelationStatistics Valid=374, Invalid=1432, Unknown=0, NotChecked=0, Total=1806 [2019-11-21 21:21:11,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-21 21:21:11,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-11-21 21:21:11,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-21 21:21:11,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2019-11-21 21:21:11,905 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 46 [2019-11-21 21:21:11,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:21:11,909 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2019-11-21 21:21:11,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-11-21 21:21:11,909 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2019-11-21 21:21:11,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 21:21:11,912 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:21:11,912 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:21:12,113 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:21:12,114 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:21:12,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:21:12,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1492272183, now seen corresponding path program 2 times [2019-11-21 21:21:12,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:21:12,115 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [778246127] [2019-11-21 21:21:12,116 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:21:12,384 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-21 21:21:12,385 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 21:21:12,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 21:21:12,391 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:21:12,415 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 21:21:12,415 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:21:12,479 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 21:21:12,479 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [778246127] [2019-11-21 21:21:12,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:21:12,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-21 21:21:12,480 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007499209] [2019-11-21 21:21:12,480 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 21:21:12,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:21:12,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 21:21:12,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-21 21:21:12,485 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand 7 states. [2019-11-21 21:21:12,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:21:12,589 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2019-11-21 21:21:12,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 21:21:12,590 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-21 21:21:12,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:21:12,592 INFO L225 Difference]: With dead ends: 133 [2019-11-21 21:21:12,592 INFO L226 Difference]: Without dead ends: 130 [2019-11-21 21:21:12,592 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-21 21:21:12,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-11-21 21:21:12,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 103. [2019-11-21 21:21:12,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-21 21:21:12,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2019-11-21 21:21:12,598 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 56 [2019-11-21 21:21:12,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:21:12,598 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2019-11-21 21:21:12,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 21:21:12,598 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2019-11-21 21:21:12,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 21:21:12,599 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:21:12,599 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:21:12,802 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:21:12,803 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:21:12,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:21:12,804 INFO L82 PathProgramCache]: Analyzing trace with hash -1535917294, now seen corresponding path program 1 times [2019-11-21 21:21:12,805 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:21:12,805 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1218566886] [2019-11-21 21:21:12,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:21:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:21:13,233 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 21:21:13,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:21:13,239 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:21:13,239 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:21:13,240 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:21:13,241 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:21:13,241 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 21:21:13,330 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:21:13,331 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-21 21:21:13,332 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:21:13,352 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 21:21:13,352 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 21:21:13,352 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-21 21:21:13,383 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 21:21:13,383 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:21:15,707 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-21 21:21:15,707 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1218566886] [2019-11-21 21:21:15,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 21:21:15,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-21 21:21:15,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054421056] [2019-11-21 21:21:15,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-21 21:21:15,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:21:15,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-21 21:21:15,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=173, Unknown=1, NotChecked=0, Total=210 [2019-11-21 21:21:15,709 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. Second operand 8 states. [2019-11-21 21:21:34,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:21:34,195 INFO L93 Difference]: Finished difference Result 161 states and 179 transitions. [2019-11-21 21:21:34,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 21:21:34,195 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-21 21:21:34,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:21:34,197 INFO L225 Difference]: With dead ends: 161 [2019-11-21 21:21:34,197 INFO L226 Difference]: Without dead ends: 161 [2019-11-21 21:21:34,198 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=83, Invalid=377, Unknown=2, NotChecked=0, Total=462 [2019-11-21 21:21:34,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-11-21 21:21:34,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 109. [2019-11-21 21:21:34,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-21 21:21:34,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2019-11-21 21:21:34,210 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 56 [2019-11-21 21:21:34,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:21:34,210 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2019-11-21 21:21:34,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-21 21:21:34,210 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2019-11-21 21:21:34,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-21 21:21:34,213 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:21:34,214 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:21:34,414 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:21:34,415 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:21:34,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:21:34,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1535917293, now seen corresponding path program 1 times [2019-11-21 21:21:34,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:21:34,418 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [990705548] [2019-11-21 21:21:34,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:21:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:21:34,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-21 21:21:34,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:21:34,915 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:21:34,915 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:21:34,924 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:21:34,928 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:21:34,929 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 21:21:34,938 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:21:34,939 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:21:34,939 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 21:21:37,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 21:21:37,183 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 21:21:37,184 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:21:37,200 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:21:37,212 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:21:37,213 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 21:21:37,214 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 21:21:37,228 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:21:37,228 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:21:37,229 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:12 [2019-11-21 21:21:37,268 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 21:21:37,268 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:21:37,460 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 21:21:37,832 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:21:37,832 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 21:21:37,832 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:21:37,833 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:21:37,835 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 21:21:37,836 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:21:37,836 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:21:37,837 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:21:41,936 WARN L192 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 21:21:41,940 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:21:47,336 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_257|], 2=[|v_#length_218|]} [2019-11-21 21:21:47,344 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 21:21:47,344 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:21:47,353 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:21:47,360 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 21:21:47,361 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 21:21:47,372 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:21:47,372 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:21:47,372 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 21:21:48,152 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 21:21:48,163 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 21:21:48,163 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:21:48,187 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:21:48,190 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 21:21:48,191 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 21:21:48,210 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:21:48,210 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 21:21:48,210 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 21:21:48,412 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 21:21:48,412 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [990705548] [2019-11-21 21:21:48,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 21:21:48,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-21 21:21:48,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604285040] [2019-11-21 21:21:48,413 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-21 21:21:48,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:21:48,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-21 21:21:48,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=407, Unknown=2, NotChecked=0, Total=462 [2019-11-21 21:21:48,414 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand 22 states. [2019-11-21 21:22:07,828 WARN L192 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-11-21 21:22:10,802 WARN L192 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-11-21 21:22:18,674 WARN L192 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-11-21 21:22:31,132 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-21 21:22:34,956 WARN L192 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2019-11-21 21:22:45,008 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-11-21 21:22:55,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:22:55,937 INFO L93 Difference]: Finished difference Result 257 states and 297 transitions. [2019-11-21 21:22:55,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-21 21:22:55,938 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-21 21:22:55,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:22:55,941 INFO L225 Difference]: With dead ends: 257 [2019-11-21 21:22:55,941 INFO L226 Difference]: Without dead ends: 257 [2019-11-21 21:22:55,942 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 28.5s TimeCoverageRelationStatistics Valid=183, Invalid=1221, Unknown=2, NotChecked=0, Total=1406 [2019-11-21 21:22:55,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2019-11-21 21:22:55,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 154. [2019-11-21 21:22:55,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-21 21:22:55,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 188 transitions. [2019-11-21 21:22:55,951 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 188 transitions. Word has length 56 [2019-11-21 21:22:55,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:22:55,952 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 188 transitions. [2019-11-21 21:22:55,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-21 21:22:55,952 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 188 transitions. [2019-11-21 21:22:55,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 21:22:55,954 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:22:55,954 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:22:56,164 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:22:56,165 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:22:56,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:22:56,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1452186463, now seen corresponding path program 1 times [2019-11-21 21:22:56,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:22:56,167 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [134556052] [2019-11-21 21:22:56,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:22:56,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:22:56,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 21:22:56,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:22:56,475 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 21:22:56,475 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:22:56,513 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-21 21:22:56,513 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [134556052] [2019-11-21 21:22:56,514 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:22:56,514 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 21:22:56,514 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421501636] [2019-11-21 21:22:56,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 21:22:56,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:22:56,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 21:22:56,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:22:56,515 INFO L87 Difference]: Start difference. First operand 154 states and 188 transitions. Second operand 5 states. [2019-11-21 21:22:56,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:22:56,569 INFO L93 Difference]: Finished difference Result 174 states and 210 transitions. [2019-11-21 21:22:56,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 21:22:56,570 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-21 21:22:56,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:22:56,571 INFO L225 Difference]: With dead ends: 174 [2019-11-21 21:22:56,572 INFO L226 Difference]: Without dead ends: 174 [2019-11-21 21:22:56,572 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 21:22:56,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2019-11-21 21:22:56,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 155. [2019-11-21 21:22:56,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2019-11-21 21:22:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 186 transitions. [2019-11-21 21:22:56,581 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 186 transitions. Word has length 58 [2019-11-21 21:22:56,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:22:56,582 INFO L462 AbstractCegarLoop]: Abstraction has 155 states and 186 transitions. [2019-11-21 21:22:56,582 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 21:22:56,582 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 186 transitions. [2019-11-21 21:22:56,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-21 21:22:56,583 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:22:56,584 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:22:56,795 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:22:56,796 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:22:56,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:22:56,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1099970498, now seen corresponding path program 1 times [2019-11-21 21:22:56,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:22:56,798 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [635924225] [2019-11-21 21:22:56,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:22:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:22:57,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 21:22:57,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:22:57,230 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 21:22:57,230 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:22:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-21 21:22:57,279 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [635924225] [2019-11-21 21:22:57,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:22:57,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 21:22:57,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146540409] [2019-11-21 21:22:57,286 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 21:22:57,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:22:57,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 21:22:57,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 21:22:57,286 INFO L87 Difference]: Start difference. First operand 155 states and 186 transitions. Second operand 6 states. [2019-11-21 21:22:57,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:22:57,398 INFO L93 Difference]: Finished difference Result 164 states and 195 transitions. [2019-11-21 21:22:57,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:22:57,400 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-21 21:22:57,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:22:57,404 INFO L225 Difference]: With dead ends: 164 [2019-11-21 21:22:57,404 INFO L226 Difference]: Without dead ends: 164 [2019-11-21 21:22:57,405 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 21:22:57,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-11-21 21:22:57,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 157. [2019-11-21 21:22:57,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-21 21:22:57,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 188 transitions. [2019-11-21 21:22:57,415 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 188 transitions. Word has length 58 [2019-11-21 21:22:57,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:22:57,415 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 188 transitions. [2019-11-21 21:22:57,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 21:22:57,416 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 188 transitions. [2019-11-21 21:22:57,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-21 21:22:57,416 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:22:57,417 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:22:57,621 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:22:57,622 INFO L410 AbstractCegarLoop]: === Iteration 15 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:22:57,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:22:57,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1452868472, now seen corresponding path program 1 times [2019-11-21 21:22:57,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:22:57,625 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [219063048] [2019-11-21 21:22:57,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:22:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:22:58,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 21:22:58,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:22:58,039 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:22:58,040 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:22:58,041 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:22:58,041 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:22:58,042 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 21:22:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-21 21:22:58,101 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:22:58,372 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:22:58,374 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 21:22:58,380 INFO L168 Benchmark]: Toolchain (without parser) took 153770.85 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 378.5 MB). Free memory was 951.0 MB in the beginning and 835.9 MB in the end (delta: 115.1 MB). Peak memory consumption was 493.6 MB. Max. memory is 11.5 GB. [2019-11-21 21:22:58,380 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 21:22:58,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 898.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-21 21:22:58,381 INFO L168 Benchmark]: Boogie Preprocessor took 118.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-21 21:22:58,381 INFO L168 Benchmark]: RCFGBuilder took 1641.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.3 MB in the end (delta: 119.2 MB). Peak memory consumption was 119.2 MB. Max. memory is 11.5 GB. [2019-11-21 21:22:58,382 INFO L168 Benchmark]: TraceAbstraction took 151107.26 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 229.1 MB). Free memory was 966.3 MB in the beginning and 835.9 MB in the end (delta: 130.4 MB). Peak memory consumption was 359.5 MB. Max. memory is 11.5 GB. [2019-11-21 21:22:58,383 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 898.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 118.56 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 1641.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.3 MB in the end (delta: 119.2 MB). Peak memory consumption was 119.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 151107.26 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 229.1 MB). Free memory was 966.3 MB in the beginning and 835.9 MB in the end (delta: 130.4 MB). Peak memory consumption was 359.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...