./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 701f399f Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.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 0.1.24-701f399 [2019-11-22 09:36:49,651 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-22 09:36:49,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-22 09:36:49,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-22 09:36:49,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-22 09:36:49,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-22 09:36:49,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-22 09:36:49,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-22 09:36:49,694 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-22 09:36:49,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-22 09:36:49,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-22 09:36:49,701 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-22 09:36:49,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-22 09:36:49,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-22 09:36:49,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-22 09:36:49,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-22 09:36:49,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-22 09:36:49,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-22 09:36:49,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-22 09:36:49,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-22 09:36:49,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-22 09:36:49,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-22 09:36:49,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-22 09:36:49,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-22 09:36:49,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-22 09:36:49,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-22 09:36:49,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-22 09:36:49,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-22 09:36:49,730 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-22 09:36:49,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-22 09:36:49,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-22 09:36:49,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-22 09:36:49,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-22 09:36:49,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-22 09:36:49,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-22 09:36:49,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-22 09:36:49,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-22 09:36:49,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-22 09:36:49,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-22 09:36:49,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-22 09:36:49,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-22 09:36:49,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-22 09:36:49,769 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-22 09:36:49,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-22 09:36:49,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-22 09:36:49,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-22 09:36:49,772 INFO L138 SettingsManager]: * Use SBE=true [2019-11-22 09:36:49,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-22 09:36:49,772 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-22 09:36:49,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-22 09:36:49,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-22 09:36:49,773 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-22 09:36:49,774 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-22 09:36:49,774 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-22 09:36:49,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-22 09:36:49,775 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-22 09:36:49,775 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-22 09:36:49,776 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:49,776 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-22 09:36:49,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-22 09:36:49,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-22 09:36:49,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-22 09:36:49,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-22 09:36:49,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 09:36:49,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-22 09:36:49,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-22 09:36:49,778 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-22 09:36:49,778 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-22 09:36:49,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-22 09:36:49,779 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 [2019-11-22 09:36:50,069 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-22 09:36:50,088 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-22 09:36:50,092 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-22 09:36:50,094 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-22 09:36:50,094 INFO L275 PluginConnector]: CDTParser initialized [2019-11-22 09:36:50,095 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-22 09:36:50,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48bbd287/9591cd53a1a9459ba790a4dfa7acb37b/FLAG8af9ea7e3 [2019-11-22 09:36:50,769 INFO L306 CDTParser]: Found 1 translation units. [2019-11-22 09:36:50,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test17_1-2.i [2019-11-22 09:36:50,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48bbd287/9591cd53a1a9459ba790a4dfa7acb37b/FLAG8af9ea7e3 [2019-11-22 09:36:50,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48bbd287/9591cd53a1a9459ba790a4dfa7acb37b [2019-11-22 09:36:50,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-22 09:36:50,987 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-22 09:36:50,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-22 09:36:50,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-22 09:36:50,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-22 09:36:50,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:36:50" (1/1) ... [2019-11-22 09:36:50,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a78c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:50, skipping insertion in model container [2019-11-22 09:36:50,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:36:50" (1/1) ... [2019-11-22 09:36:51,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-22 09:36:51,073 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:36:51,495 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:36:51,496 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-22 09:36:51,496 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:51,507 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:36:51,508 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-22 09:36:51,508 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:51,510 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:36:51,511 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-22 09:36:51,511 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:51,514 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:36:51,514 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-22 09:36:51,514 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:51,537 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:36:51,537 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-22 09:36:51,538 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:51,553 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:36:51,554 INFO L968 CHandler]: at location: C: (struct A17 *)ldv_malloc(sizeof(struct A17)) [766] [2019-11-22 09:36:51,555 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:51,568 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-22 09:36:51,568 INFO L968 CHandler]: at location: C: (struct A17 **)ldv_malloc(sizeof(struct A17*)*len) [787] [2019-11-22 09:36:51,569 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-22 09:36:51,575 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:36:51,606 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-22 09:36:51,625 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-22 09:36:51,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:36:51,699 INFO L201 MainTranslator]: Completed pre-run [2019-11-22 09:36:51,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-22 09:36:51,930 INFO L205 MainTranslator]: Completed translation [2019-11-22 09:36:51,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:51 WrapperNode [2019-11-22 09:36:51,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-22 09:36:51,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-22 09:36:51,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-22 09:36:51,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-22 09:36:51,955 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:51" (1/1) ... [2019-11-22 09:36:51,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:51" (1/1) ... [2019-11-22 09:36:52,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:51" (1/1) ... [2019-11-22 09:36:52,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:51" (1/1) ... [2019-11-22 09:36:52,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:51" (1/1) ... [2019-11-22 09:36:52,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:51" (1/1) ... [2019-11-22 09:36:52,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:51" (1/1) ... [2019-11-22 09:36:52,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-22 09:36:52,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-22 09:36:52,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-22 09:36:52,113 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-22 09:36:52,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-22 09:36:52,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-22 09:36:52,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-22 09:36:52,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 09:36:52,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 09:36:52,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-22 09:36:52,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-22 09:36:52,190 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-22 09:36:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-22 09:36:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-22 09:36:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-22 09:36:52,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-22 09:36:52,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-22 09:36:52,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-22 09:36:52,193 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-22 09:36:52,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-22 09:36:52,193 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-22 09:36:52,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-22 09:36:52,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-22 09:36:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-22 09:36:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-22 09:36:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-22 09:36:52,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-22 09:36:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-22 09:36:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-22 09:36:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-22 09:36:52,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-22 09:36:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-22 09:36:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-22 09:36:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-22 09:36:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-22 09:36:52,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-22 09:36:52,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-22 09:36:52,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-22 09:36:52,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-22 09:36:52,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-22 09:36:52,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-22 09:36:52,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-22 09:36:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-22 09:36:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-22 09:36:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-22 09:36:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-22 09:36:52,199 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-22 09:36:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_17 [2019-11-22 09:36:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure free_17 [2019-11-22 09:36:52,200 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-22 09:36:52,201 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-22 09:36:52,201 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-22 09:36:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-22 09:36:52,202 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-22 09:36:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-22 09:36:52,203 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-22 09:36:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-22 09:36:52,204 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-22 09:36:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-22 09:36:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-22 09:36:52,205 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-22 09:36:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-22 09:36:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-22 09:36:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-22 09:36:52,206 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-22 09:36:52,207 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-22 09:36:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-22 09:36:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-22 09:36:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-22 09:36:52,208 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-22 09:36:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-22 09:36:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-22 09:36:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-22 09:36:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-22 09:36:52,209 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-22 09:36:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-22 09:36:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-22 09:36:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-22 09:36:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-22 09:36:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-22 09:36:52,210 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-22 09:36:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-22 09:36:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-22 09:36:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-22 09:36:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-22 09:36:52,211 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-22 09:36:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-22 09:36:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-22 09:36:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-22 09:36:52,212 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-22 09:36:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-22 09:36:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-22 09:36:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-22 09:36:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-22 09:36:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-22 09:36:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-22 09:36:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-22 09:36:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-22 09:36:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-22 09:36:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-22 09:36:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-22 09:36:52,215 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-22 09:36:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-22 09:36:52,216 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-22 09:36:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-22 09:36:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-22 09:36:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-22 09:36:52,217 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-22 09:36:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-22 09:36:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-22 09:36:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-22 09:36:52,218 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-22 09:36:52,219 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-22 09:36:52,220 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-22 09:36:52,223 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-22 09:36:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-22 09:36:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-22 09:36:52,224 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-22 09:36:52,225 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-22 09:36:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-22 09:36:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-22 09:36:52,226 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-22 09:36:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-22 09:36:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-22 09:36:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-22 09:36:52,227 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-22 09:36:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-22 09:36:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-22 09:36:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-22 09:36:52,236 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-22 09:36:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-22 09:36:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-22 09:36:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-22 09:36:52,237 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-22 09:36:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-22 09:36:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-22 09:36:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-22 09:36:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-22 09:36:52,238 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-22 09:36:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-22 09:36:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-22 09:36:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-22 09:36:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-22 09:36:52,239 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-22 09:36:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-22 09:36:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-22 09:36:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-22 09:36:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-22 09:36:52,240 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-22 09:36:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-22 09:36:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-22 09:36:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-22 09:36:52,241 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-22 09:36:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-22 09:36:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-22 09:36:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-22 09:36:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-22 09:36:52,242 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-22 09:36:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-22 09:36:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-22 09:36:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-22 09:36:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-22 09:36:52,243 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-22 09:36:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-22 09:36:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-22 09:36:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-22 09:36:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-22 09:36:52,244 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-22 09:36:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-22 09:36:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-22 09:36:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-22 09:36:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-22 09:36:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-22 09:36:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-22 09:36:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-22 09:36:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-22 09:36:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-22 09:36:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-22 09:36:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-22 09:36:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-22 09:36:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-22 09:36:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-22 09:36:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-22 09:36:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-22 09:36:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-22 09:36:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-22 09:36:52,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-22 09:36:52,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-22 09:36:52,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-22 09:36:52,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-22 09:36:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-22 09:36:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-22 09:36:52,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-22 09:36:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-22 09:36:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-22 09:36:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-22 09:36:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-22 09:36:52,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-22 09:36:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-22 09:36:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-22 09:36:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-22 09:36:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-22 09:36:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-22 09:36:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-22 09:36:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-22 09:36:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-22 09:36:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-22 09:36:52,254 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-22 09:36:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-22 09:36:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_17 [2019-11-22 09:36:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure free_17 [2019-11-22 09:36:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-22 09:36:52,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-22 09:36:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-22 09:36:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-22 09:36:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-22 09:36:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-22 09:36:52,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-22 09:36:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-22 09:36:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-22 09:36:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-22 09:36:52,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-22 09:36:52,902 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 09:36:53,340 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-22 09:36:53,921 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-22 09:36:53,922 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-22 09:36:53,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:36:53 BoogieIcfgContainer [2019-11-22 09:36:53,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-22 09:36:53,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-22 09:36:53,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-22 09:36:53,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-22 09:36:53,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:36:50" (1/3) ... [2019-11-22 09:36:53,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4739fdad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:36:53, skipping insertion in model container [2019-11-22 09:36:53,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:36:51" (2/3) ... [2019-11-22 09:36:53,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4739fdad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:36:53, skipping insertion in model container [2019-11-22 09:36:53,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:36:53" (3/3) ... [2019-11-22 09:36:53,933 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test17_1-2.i [2019-11-22 09:36:53,943 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-22 09:36:53,959 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 90 error locations. [2019-11-22 09:36:53,972 INFO L249 AbstractCegarLoop]: Starting to check reachability of 90 error locations. [2019-11-22 09:36:54,002 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-22 09:36:54,008 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-22 09:36:54,008 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-22 09:36:54,008 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-22 09:36:54,008 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-22 09:36:54,008 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-22 09:36:54,008 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-22 09:36:54,008 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-22 09:36:54,029 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states. [2019-11-22 09:36:54,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 09:36:54,039 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:54,040 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:54,041 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:54,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:54,047 INFO L82 PathProgramCache]: Analyzing trace with hash -67233649, now seen corresponding path program 1 times [2019-11-22 09:36:54,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:54,060 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1647848037] [2019-11-22 09:36:54,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:36:54,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:36:54,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:54,434 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 09:36:54,435 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:36:54,442 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:36:54,443 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:36:54,443 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:36:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:54,478 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:54,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:54,571 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1647848037] [2019-11-22 09:36:54,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:36:54,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-22 09:36:54,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847003027] [2019-11-22 09:36:54,580 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:36:54,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:54,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:36:54,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:36:54,599 INFO L87 Difference]: Start difference. First operand 147 states. Second operand 5 states. [2019-11-22 09:36:54,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:54,896 INFO L93 Difference]: Finished difference Result 87 states and 98 transitions. [2019-11-22 09:36:54,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:36:54,902 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 09:36:54,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:54,917 INFO L225 Difference]: With dead ends: 87 [2019-11-22 09:36:54,918 INFO L226 Difference]: Without dead ends: 84 [2019-11-22 09:36:54,931 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:36:54,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-22 09:36:55,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2019-11-22 09:36:55,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-22 09:36:55,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions. [2019-11-22 09:36:55,025 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 16 [2019-11-22 09:36:55,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:55,026 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 91 transitions. [2019-11-22 09:36:55,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:36:55,026 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions. [2019-11-22 09:36:55,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 09:36:55,028 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:55,028 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:55,233 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:55,234 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:55,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:55,234 INFO L82 PathProgramCache]: Analyzing trace with hash -67233648, now seen corresponding path program 1 times [2019-11-22 09:36:55,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:55,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1811952653] [2019-11-22 09:36:55,235 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:36:55,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-22 09:36:55,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:55,565 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 09:36:55,566 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:36:55,574 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:36:55,575 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:36:55,575 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:36:55,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:55,649 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:56,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:56,477 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1811952653] [2019-11-22 09:36:56,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:36:56,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-22 09:36:56,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730408250] [2019-11-22 09:36:56,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-22 09:36:56,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:56,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-22 09:36:56,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2019-11-22 09:36:56,480 INFO L87 Difference]: Start difference. First operand 80 states and 91 transitions. Second operand 14 states. [2019-11-22 09:36:58,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:58,044 INFO L93 Difference]: Finished difference Result 95 states and 111 transitions. [2019-11-22 09:36:58,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-22 09:36:58,046 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 16 [2019-11-22 09:36:58,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:58,048 INFO L225 Difference]: With dead ends: 95 [2019-11-22 09:36:58,049 INFO L226 Difference]: Without dead ends: 95 [2019-11-22 09:36:58,050 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=88, Invalid=374, Unknown=0, NotChecked=0, Total=462 [2019-11-22 09:36:58,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-11-22 09:36:58,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 85. [2019-11-22 09:36:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-11-22 09:36:58,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions. [2019-11-22 09:36:58,061 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 16 [2019-11-22 09:36:58,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:58,061 INFO L462 AbstractCegarLoop]: Abstraction has 85 states and 97 transitions. [2019-11-22 09:36:58,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-22 09:36:58,062 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions. [2019-11-22 09:36:58,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-22 09:36:58,062 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:58,063 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:58,265 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:58,267 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:58,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:58,268 INFO L82 PathProgramCache]: Analyzing trace with hash 820270032, now seen corresponding path program 1 times [2019-11-22 09:36:58,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:58,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [164485693] [2019-11-22 09:36:58,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:36:58,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-22 09:36:58,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:58,520 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:58,555 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [164485693] [2019-11-22 09:36:58,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:36:58,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 09:36:58,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743520910] [2019-11-22 09:36:58,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:36:58,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:58,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:36:58,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:36:58,557 INFO L87 Difference]: Start difference. First operand 85 states and 97 transitions. Second operand 5 states. [2019-11-22 09:36:58,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:58,605 INFO L93 Difference]: Finished difference Result 84 states and 93 transitions. [2019-11-22 09:36:58,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:36:58,606 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-11-22 09:36:58,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:58,608 INFO L225 Difference]: With dead ends: 84 [2019-11-22 09:36:58,608 INFO L226 Difference]: Without dead ends: 84 [2019-11-22 09:36:58,608 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:36:58,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-22 09:36:58,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-22 09:36:58,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-22 09:36:58,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2019-11-22 09:36:58,617 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 16 [2019-11-22 09:36:58,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:58,618 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2019-11-22 09:36:58,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:36:58,618 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2019-11-22 09:36:58,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 09:36:58,619 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:58,619 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:58,822 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:58,824 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:58,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:58,826 INFO L82 PathProgramCache]: Analyzing trace with hash -2083416263, now seen corresponding path program 1 times [2019-11-22 09:36:58,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:58,826 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [228492948] [2019-11-22 09:36:58,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:36:59,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:36:59,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:59,090 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:59,162 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [228492948] [2019-11-22 09:36:59,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:36:59,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 09:36:59,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896565553] [2019-11-22 09:36:59,163 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:36:59,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:59,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:36:59,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:36:59,164 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand 5 states. [2019-11-22 09:36:59,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:59,217 INFO L93 Difference]: Finished difference Result 84 states and 92 transitions. [2019-11-22 09:36:59,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:36:59,218 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-22 09:36:59,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:59,219 INFO L225 Difference]: With dead ends: 84 [2019-11-22 09:36:59,219 INFO L226 Difference]: Without dead ends: 84 [2019-11-22 09:36:59,220 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:36:59,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2019-11-22 09:36:59,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2019-11-22 09:36:59,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-22 09:36:59,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2019-11-22 09:36:59,231 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 17 [2019-11-22 09:36:59,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:59,231 INFO L462 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2019-11-22 09:36:59,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:36:59,231 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2019-11-22 09:36:59,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-22 09:36:59,232 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:59,232 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:36:59,433 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:59,438 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:36:59,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:36:59,439 INFO L82 PathProgramCache]: Analyzing trace with hash -340605928, now seen corresponding path program 1 times [2019-11-22 09:36:59,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:36:59,440 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [536467404] [2019-11-22 09:36:59,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:36:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:36:59,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 09:36:59,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:36:59,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:59,664 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:36:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:36:59,717 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [536467404] [2019-11-22 09:36:59,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:36:59,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-22 09:36:59,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162557587] [2019-11-22 09:36:59,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-22 09:36:59,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:36:59,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-22 09:36:59,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 09:36:59,719 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand 3 states. [2019-11-22 09:36:59,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:36:59,902 INFO L93 Difference]: Finished difference Result 120 states and 133 transitions. [2019-11-22 09:36:59,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-22 09:36:59,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-22 09:36:59,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:36:59,905 INFO L225 Difference]: With dead ends: 120 [2019-11-22 09:36:59,905 INFO L226 Difference]: Without dead ends: 115 [2019-11-22 09:36:59,905 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-22 09:36:59,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-11-22 09:36:59,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 80. [2019-11-22 09:36:59,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-22 09:36:59,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 87 transitions. [2019-11-22 09:36:59,915 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 87 transitions. Word has length 17 [2019-11-22 09:36:59,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:36:59,915 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 87 transitions. [2019-11-22 09:36:59,916 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-22 09:36:59,916 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 87 transitions. [2019-11-22 09:36:59,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-22 09:36:59,917 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:36:59,917 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:00,118 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:00,119 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:00,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:00,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1976385840, now seen corresponding path program 1 times [2019-11-22 09:37:00,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:00,121 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1614634493] [2019-11-22 09:37:00,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:00,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-22 09:37:00,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:00,402 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 09:37:00,402 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:00,407 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:00,407 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:00,407 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:37:00,528 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:00,528 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:01,631 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1614634493] [2019-11-22 09:37:01,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:37:01,631 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2019-11-22 09:37:01,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783945256] [2019-11-22 09:37:01,632 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-11-22 09:37:01,632 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:01,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-11-22 09:37:01,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2019-11-22 09:37:01,633 INFO L87 Difference]: Start difference. First operand 80 states and 87 transitions. Second operand 18 states. [2019-11-22 09:37:02,500 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2019-11-22 09:37:02,728 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2019-11-22 09:37:03,103 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-11-22 09:37:03,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:03,808 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2019-11-22 09:37:03,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-22 09:37:03,809 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2019-11-22 09:37:03,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:03,810 INFO L225 Difference]: With dead ends: 97 [2019-11-22 09:37:03,811 INFO L226 Difference]: Without dead ends: 97 [2019-11-22 09:37:03,811 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=155, Invalid=657, Unknown=0, NotChecked=0, Total=812 [2019-11-22 09:37:03,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-11-22 09:37:03,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 92. [2019-11-22 09:37:03,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-11-22 09:37:03,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 101 transitions. [2019-11-22 09:37:03,818 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 101 transitions. Word has length 22 [2019-11-22 09:37:03,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:03,819 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 101 transitions. [2019-11-22 09:37:03,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-11-22 09:37:03,819 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 101 transitions. [2019-11-22 09:37:03,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-22 09:37:03,820 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:03,820 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:04,023 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:04,024 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:04,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:04,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1887639459, now seen corresponding path program 1 times [2019-11-22 09:37:04,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:04,026 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [530364988] [2019-11-22 09:37:04,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:04,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-22 09:37:04,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:04,376 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:04,377 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:04,515 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:04,516 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [530364988] [2019-11-22 09:37:04,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:37:04,516 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-22 09:37:04,516 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240073290] [2019-11-22 09:37:04,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-22 09:37:04,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:04,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-22 09:37:04,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2019-11-22 09:37:04,518 INFO L87 Difference]: Start difference. First operand 92 states and 101 transitions. Second operand 12 states. [2019-11-22 09:37:04,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:04,888 INFO L93 Difference]: Finished difference Result 98 states and 104 transitions. [2019-11-22 09:37:04,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-22 09:37:04,889 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 35 [2019-11-22 09:37:04,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:04,891 INFO L225 Difference]: With dead ends: 98 [2019-11-22 09:37:04,892 INFO L226 Difference]: Without dead ends: 98 [2019-11-22 09:37:04,892 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2019-11-22 09:37:04,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2019-11-22 09:37:04,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97. [2019-11-22 09:37:04,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-11-22 09:37:04,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 104 transitions. [2019-11-22 09:37:04,910 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 104 transitions. Word has length 35 [2019-11-22 09:37:04,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:04,910 INFO L462 AbstractCegarLoop]: Abstraction has 97 states and 104 transitions. [2019-11-22 09:37:04,910 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-22 09:37:04,911 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 104 transitions. [2019-11-22 09:37:04,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-11-22 09:37:04,913 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:04,914 INFO L410 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:05,116 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:05,117 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:05,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:05,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1668351152, now seen corresponding path program 2 times [2019-11-22 09:37:05,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:05,119 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2011075558] [2019-11-22 09:37:05,119 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:05,461 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-22 09:37:05,462 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:37:05,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-22 09:37:05,466 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:05,487 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 09:37:05,488 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:05,493 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:05,494 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:05,494 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:37:05,739 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:05,740 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:07,927 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:07,927 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2011075558] [2019-11-22 09:37:07,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:37:07,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2019-11-22 09:37:07,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871287060] [2019-11-22 09:37:07,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-22 09:37:07,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:07,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-22 09:37:07,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=539, Unknown=0, NotChecked=0, Total=650 [2019-11-22 09:37:07,930 INFO L87 Difference]: Start difference. First operand 97 states and 104 transitions. Second operand 26 states. [2019-11-22 09:37:11,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:11,219 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2019-11-22 09:37:11,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-11-22 09:37:11,220 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 34 [2019-11-22 09:37:11,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:11,223 INFO L225 Difference]: With dead ends: 108 [2019-11-22 09:37:11,223 INFO L226 Difference]: Without dead ends: 108 [2019-11-22 09:37:11,224 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=291, Invalid=1349, Unknown=0, NotChecked=0, Total=1640 [2019-11-22 09:37:11,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-11-22 09:37:11,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 104. [2019-11-22 09:37:11,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-22 09:37:11,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 112 transitions. [2019-11-22 09:37:11,231 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 112 transitions. Word has length 34 [2019-11-22 09:37:11,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:11,231 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 112 transitions. [2019-11-22 09:37:11,231 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-22 09:37:11,231 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 112 transitions. [2019-11-22 09:37:11,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-11-22 09:37:11,236 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:11,236 INFO L410 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:11,439 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:11,439 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:11,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:11,440 INFO L82 PathProgramCache]: Analyzing trace with hash -67864624, now seen corresponding path program 3 times [2019-11-22 09:37:11,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:11,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1077767683] [2019-11-22 09:37:11,441 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:11,999 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-11-22 09:37:11,999 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:37:12,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 36 conjunts are in the unsatisfiable core [2019-11-22 09:37:12,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:12,026 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 09:37:12,026 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:12,033 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:12,033 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:12,034 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-22 09:37:12,803 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 17 treesize of output 13 [2019-11-22 09:37:12,803 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:12,816 INFO L567 ElimStorePlain]: treesize reduction 18, result has 37.9 percent of original size [2019-11-22 09:37:12,816 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:12,817 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:36, output treesize:11 [2019-11-22 09:37:12,867 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 10 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:12,868 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:13,558 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2019-11-22 09:37:14,152 WARN L192 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2019-11-22 09:37:14,447 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-11-22 09:37:15,051 WARN L192 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2019-11-22 09:37:15,401 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2019-11-22 09:37:16,073 WARN L192 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2019-11-22 09:37:16,669 WARN L192 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2019-11-22 09:37:17,623 WARN L192 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-11-22 09:37:18,360 WARN L192 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-22 09:37:19,147 WARN L192 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-22 09:37:20,312 WARN L192 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-22 09:37:21,275 WARN L192 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2019-11-22 09:37:21,773 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2019-11-22 09:37:22,743 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:37:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 13 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-22 09:37:23,467 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1077767683] [2019-11-22 09:37:23,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:37:23,469 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25] total 42 [2019-11-22 09:37:23,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34736046] [2019-11-22 09:37:23,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-11-22 09:37:23,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:23,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-11-22 09:37:23,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=277, Invalid=1445, Unknown=0, NotChecked=0, Total=1722 [2019-11-22 09:37:23,472 INFO L87 Difference]: Start difference. First operand 104 states and 112 transitions. Second operand 42 states. [2019-11-22 09:37:24,285 WARN L192 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-22 09:37:28,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:28,876 INFO L93 Difference]: Finished difference Result 102 states and 107 transitions. [2019-11-22 09:37:28,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-22 09:37:28,878 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 46 [2019-11-22 09:37:28,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:28,879 INFO L225 Difference]: With dead ends: 102 [2019-11-22 09:37:28,879 INFO L226 Difference]: Without dead ends: 102 [2019-11-22 09:37:28,880 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 45 SyntacticMatches, 7 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=321, Invalid=1749, Unknown=0, NotChecked=0, Total=2070 [2019-11-22 09:37:28,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-11-22 09:37:28,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-11-22 09:37:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-22 09:37:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2019-11-22 09:37:28,886 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 46 [2019-11-22 09:37:28,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:28,886 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2019-11-22 09:37:28,886 INFO L463 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-11-22 09:37:28,886 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2019-11-22 09:37:28,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-22 09:37:28,888 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:28,888 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:29,113 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:29,114 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]=== [2019-11-22 09:37:29,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:29,116 INFO L82 PathProgramCache]: Analyzing trace with hash 1492272183, now seen corresponding path program 2 times [2019-11-22 09:37:29,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:29,117 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [172644092] [2019-11-22 09:37:29,117 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:29,375 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-11-22 09:37:29,375 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-22 09:37:29,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:37:29,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:29,406 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 09:37:29,407 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:29,492 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 09:37:29,493 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [172644092] [2019-11-22 09:37:29,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:37:29,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-11-22 09:37:29,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382208139] [2019-11-22 09:37:29,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-22 09:37:29,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:29,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-22 09:37:29,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-22 09:37:29,494 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand 7 states. [2019-11-22 09:37:29,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:29,602 INFO L93 Difference]: Finished difference Result 133 states and 142 transitions. [2019-11-22 09:37:29,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 09:37:29,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-11-22 09:37:29,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:29,604 INFO L225 Difference]: With dead ends: 133 [2019-11-22 09:37:29,604 INFO L226 Difference]: Without dead ends: 130 [2019-11-22 09:37:29,605 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-22 09:37:29,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-11-22 09:37:29,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 103. [2019-11-22 09:37:29,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-22 09:37:29,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 108 transitions. [2019-11-22 09:37:29,609 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 108 transitions. Word has length 56 [2019-11-22 09:37:29,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:29,610 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 108 transitions. [2019-11-22 09:37:29,610 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-22 09:37:29,610 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 108 transitions. [2019-11-22 09:37:29,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-22 09:37:29,611 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:29,612 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:29,815 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:29,815 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:29,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:29,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1535917294, now seen corresponding path program 1 times [2019-11-22 09:37:29,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:29,817 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [2102180225] [2019-11-22 09:37:29,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:30,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-22 09:37:30,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:30,241 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 09:37:30,242 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:30,243 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:30,244 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:30,244 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:37:30,351 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:30,351 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-22 09:37:30,352 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:30,370 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-22 09:37:30,371 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-22 09:37:30,371 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-22 09:37:30,399 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 09:37:30,399 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:37:34,716 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2019-11-22 09:37:34,716 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2102180225] [2019-11-22 09:37:34,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-22 09:37:34,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-22 09:37:34,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301663815] [2019-11-22 09:37:34,717 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-22 09:37:34,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:37:34,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-22 09:37:34,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=173, Unknown=1, NotChecked=0, Total=210 [2019-11-22 09:37:34,717 INFO L87 Difference]: Start difference. First operand 103 states and 108 transitions. Second operand 8 states. [2019-11-22 09:37:57,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:37:57,441 INFO L93 Difference]: Finished difference Result 161 states and 179 transitions. [2019-11-22 09:37:57,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-22 09:37:57,441 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 56 [2019-11-22 09:37:57,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:37:57,446 INFO L225 Difference]: With dead ends: 161 [2019-11-22 09:37:57,446 INFO L226 Difference]: Without dead ends: 161 [2019-11-22 09:37:57,446 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 98 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=83, Invalid=378, Unknown=1, NotChecked=0, Total=462 [2019-11-22 09:37:57,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-11-22 09:37:57,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 109. [2019-11-22 09:37:57,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-11-22 09:37:57,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 118 transitions. [2019-11-22 09:37:57,456 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 118 transitions. Word has length 56 [2019-11-22 09:37:57,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:37:57,456 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 118 transitions. [2019-11-22 09:37:57,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-22 09:37:57,457 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 118 transitions. [2019-11-22 09:37:57,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-22 09:37:57,462 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:37:57,463 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:37:57,663 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:57,664 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:37:57,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:37:57,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1535917293, now seen corresponding path program 1 times [2019-11-22 09:37:57,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:37:57,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1559114512] [2019-11-22 09:37:57,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:37:58,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:37:58,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 28 conjunts are in the unsatisfiable core [2019-11-22 09:37:58,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:37:58,125 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 09:37:58,125 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:58,135 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:58,138 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 09:37:58,139 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 09:37:58,145 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:37:58,146 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:37:58,146 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-22 09:38:00,321 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-22 09:38:00,323 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-22 09:38:00,323 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:00,340 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:00,350 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:00,351 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-22 09:38:00,351 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:00,367 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:00,367 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:00,368 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2019-11-22 09:38:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 09:38:00,406 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:38:00,607 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:38:00,847 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:38:00,848 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:38:00,849 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:38:06,389 WARN L192 SmtUtils]: Spent 5.24 s on a formula simplification. DAG size of input: 38 DAG size of output: 32 [2019-11-22 09:38:06,394 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-22 09:38:07,848 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_257|], 2=[|v_#length_218|]} [2019-11-22 09:38:07,861 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-22 09:38:07,861 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:07,872 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:07,874 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-22 09:38:07,875 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:07,883 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:07,884 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:07,884 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-22 09:38:08,428 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-22 09:38:08,436 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-22 09:38:08,437 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:08,453 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:08,457 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-22 09:38:08,458 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:08,474 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:08,475 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-22 09:38:08,475 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-22 09:38:08,619 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 09:38:08,620 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1559114512] [2019-11-22 09:38:08,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-22 09:38:08,620 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 21 [2019-11-22 09:38:08,620 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899018076] [2019-11-22 09:38:08,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-22 09:38:08,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:38:08,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-22 09:38:08,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=408, Unknown=1, NotChecked=0, Total=462 [2019-11-22 09:38:08,621 INFO L87 Difference]: Start difference. First operand 109 states and 118 transitions. Second operand 22 states. [2019-11-22 09:38:29,798 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2019-11-22 09:38:37,161 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-22 09:38:40,939 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2019-11-22 09:38:54,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:38:54,485 INFO L93 Difference]: Finished difference Result 251 states and 290 transitions. [2019-11-22 09:38:54,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-22 09:38:54,486 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 56 [2019-11-22 09:38:54,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:38:54,489 INFO L225 Difference]: With dead ends: 251 [2019-11-22 09:38:54,490 INFO L226 Difference]: Without dead ends: 251 [2019-11-22 09:38:54,490 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=150, Invalid=1039, Unknown=1, NotChecked=0, Total=1190 [2019-11-22 09:38:54,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-11-22 09:38:54,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 150. [2019-11-22 09:38:54,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2019-11-22 09:38:54,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 183 transitions. [2019-11-22 09:38:54,499 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 183 transitions. Word has length 56 [2019-11-22 09:38:54,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:38:54,499 INFO L462 AbstractCegarLoop]: Abstraction has 150 states and 183 transitions. [2019-11-22 09:38:54,500 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-22 09:38:54,500 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2019-11-22 09:38:54,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-22 09:38:54,501 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:38:54,501 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:38:54,705 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:54,706 INFO L410 AbstractCegarLoop]: === Iteration 13 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:38:54,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:38:54,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1452186463, now seen corresponding path program 1 times [2019-11-22 09:38:54,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:38:54,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1823466854] [2019-11-22 09:38:54,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:38:54,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-22 09:38:54,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:38:55,015 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-22 09:38:55,015 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:38:55,049 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2019-11-22 09:38:55,050 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1823466854] [2019-11-22 09:38:55,050 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:38:55,050 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-22 09:38:55,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688680979] [2019-11-22 09:38:55,051 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-22 09:38:55,051 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:38:55,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-22 09:38:55,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-22 09:38:55,052 INFO L87 Difference]: Start difference. First operand 150 states and 183 transitions. Second operand 5 states. [2019-11-22 09:38:55,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:38:55,107 INFO L93 Difference]: Finished difference Result 163 states and 196 transitions. [2019-11-22 09:38:55,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-22 09:38:55,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-11-22 09:38:55,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:38:55,110 INFO L225 Difference]: With dead ends: 163 [2019-11-22 09:38:55,111 INFO L226 Difference]: Without dead ends: 163 [2019-11-22 09:38:55,111 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-22 09:38:55,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2019-11-22 09:38:55,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 152. [2019-11-22 09:38:55,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-11-22 09:38:55,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2019-11-22 09:38:55,118 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 183 transitions. Word has length 58 [2019-11-22 09:38:55,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:38:55,119 INFO L462 AbstractCegarLoop]: Abstraction has 152 states and 183 transitions. [2019-11-22 09:38:55,119 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-22 09:38:55,119 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2019-11-22 09:38:55,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-11-22 09:38:55,120 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:38:55,120 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:38:55,322 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:55,323 INFO L410 AbstractCegarLoop]: === Iteration 14 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, alloc_17Err0REQUIRES_VIOLATION, alloc_17Err4ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err1REQUIRES_VIOLATION, alloc_17Err5ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err7REQUIRES_VIOLATION, alloc_17Err6ASSERT_VIOLATIONMEMORY_FREE, alloc_17Err2REQUIRES_VIOLATION, alloc_17Err3REQUIRES_VIOLATION, alloc_17Err8REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, free_17Err1REQUIRES_VIOLATION, free_17Err3ASSERT_VIOLATIONMEMORY_FREE, free_17Err0REQUIRES_VIOLATION, free_17Err2ASSERT_VIOLATIONMEMORY_FREE, free_17Err4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-22 09:38:55,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:38:55,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1099970498, now seen corresponding path program 1 times [2019-11-22 09:38:55,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:38:55,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [890186181] [2019-11-22 09:38:55,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:38:55,735 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-22 09:38:55,737 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:38:55,756 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-22 09:38:55,756 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:38:55,793 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2019-11-22 09:38:55,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [890186181] [2019-11-22 09:38:55,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-22 09:38:55,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-22 09:38:55,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372222889] [2019-11-22 09:38:55,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-22 09:38:55,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-22 09:38:55,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-22 09:38:55,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-22 09:38:55,795 INFO L87 Difference]: Start difference. First operand 152 states and 183 transitions. Second operand 6 states. [2019-11-22 09:38:55,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-22 09:38:55,903 INFO L93 Difference]: Finished difference Result 161 states and 192 transitions. [2019-11-22 09:38:55,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-22 09:38:55,904 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2019-11-22 09:38:55,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-22 09:38:55,905 INFO L225 Difference]: With dead ends: 161 [2019-11-22 09:38:55,905 INFO L226 Difference]: Without dead ends: 161 [2019-11-22 09:38:55,906 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-22 09:38:55,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2019-11-22 09:38:55,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 154. [2019-11-22 09:38:55,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-11-22 09:38:55,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 185 transitions. [2019-11-22 09:38:55,912 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 185 transitions. Word has length 58 [2019-11-22 09:38:55,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-22 09:38:55,913 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 185 transitions. [2019-11-22 09:38:55,913 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-22 09:38:55,913 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 185 transitions. [2019-11-22 09:38:55,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-22 09:38:55,914 INFO L402 BasicCegarLoop]: Found error trace [2019-11-22 09:38:55,915 INFO L410 BasicCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-22 09:38:56,118 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:56,119 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]=== [2019-11-22 09:38:56,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-22 09:38:56,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1452868472, now seen corresponding path program 1 times [2019-11-22 09:38:56,120 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-22 09:38:56,120 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1294177656] [2019-11-22 09:38:56,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-22 09:38:56,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-22 09:38:56,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-22 09:38:56,545 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-22 09:38:56,545 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-22 09:38:56,546 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-22 09:38:56,547 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-22 09:38:56,547 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-22 09:38:56,642 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2019-11-22 09:38:56,643 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-22 09:38:56,916 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-22 09:38:56,917 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-22 09:38:56,924 INFO L168 Benchmark]: Toolchain (without parser) took 125936.84 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 342.4 MB). Free memory was 945.6 MB in the beginning and 941.1 MB in the end (delta: 4.5 MB). Peak memory consumption was 346.9 MB. Max. memory is 11.5 GB. [2019-11-22 09:38:56,924 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-22 09:38:56,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 944.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -157.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-22 09:38:56,925 INFO L168 Benchmark]: Boogie Preprocessor took 178.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-22 09:38:56,925 INFO L168 Benchmark]: RCFGBuilder took 1811.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.8 MB in the end (delta: 123.7 MB). Peak memory consumption was 123.7 MB. Max. memory is 11.5 GB. [2019-11-22 09:38:56,926 INFO L168 Benchmark]: TraceAbstraction took 122996.89 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 972.8 MB in the beginning and 941.1 MB in the end (delta: 31.7 MB). Peak memory consumption was 221.5 MB. Max. memory is 11.5 GB. [2019-11-22 09:38:56,928 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 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 944.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -157.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 178.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1811.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 972.8 MB in the end (delta: 123.7 MB). Peak memory consumption was 123.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 122996.89 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 189.8 MB). Free memory was 972.8 MB in the beginning and 941.1 MB in the end (delta: 31.7 MB). Peak memory consumption was 221.5 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...