./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 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_test20-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5d4704835c9961ab13be7e1d0cce345ed8189178 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-264dba8 [2019-11-21 12:57:20,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:57:20,638 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:57:20,659 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:57:20,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:57:20,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:57:20,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:57:20,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:57:20,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:57:20,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:57:20,681 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:57:20,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:57:20,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:57:20,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:57:20,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:57:20,692 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:57:20,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:57:20,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:57:20,699 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:57:20,706 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:57:20,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:57:20,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:57:20,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:57:20,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:57:20,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:57:20,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:57:20,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:57:20,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:57:20,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:57:20,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:57:20,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:57:20,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:57:20,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:57:20,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:57:20,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:57:20,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:57:20,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:57:20,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:57:20,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:57:20,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:57:20,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:57:20,736 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 12:57:20,759 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:57:20,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:57:20,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:57:20,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:57:20,762 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:57:20,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:57:20,762 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 12:57:20,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:57:20,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:57:20,763 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 12:57:20,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:57:20,764 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:57:20,764 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:57:20,765 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:57:20,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:57:20,765 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:57:20,766 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:57:20,766 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 12:57:20,766 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:57:20,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:57:20,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:57:20,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:57:20,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:57:20,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:57:20,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:57:20,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:57:20,768 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:57:20,768 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:57:20,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:57:20,768 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5d4704835c9961ab13be7e1d0cce345ed8189178 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:57:21,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:57:21,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:57:21,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:57:21,111 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:57:21,112 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:57:21,113 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2019-11-21 12:57:21,187 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb8a5cb9/eb503e69e4fd491eb769a896caca7d12/FLAGd557acb85 [2019-11-21 12:57:21,738 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:57:21,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test20-2.i [2019-11-21 12:57:21,763 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb8a5cb9/eb503e69e4fd491eb769a896caca7d12/FLAGd557acb85 [2019-11-21 12:57:22,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb8a5cb9/eb503e69e4fd491eb769a896caca7d12 [2019-11-21 12:57:22,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:57:22,032 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:57:22,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:57:22,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:57:22,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:57:22,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:57:22" (1/1) ... [2019-11-21 12:57:22,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16306e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:22, skipping insertion in model container [2019-11-21 12:57:22,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:57:22" (1/1) ... [2019-11-21 12:57:22,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:57:22,103 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:57:22,578 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:57:22,579 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 12:57:22,579 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:57:22,600 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:57:22,601 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 12:57:22,601 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:57:22,603 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:57:22,604 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 12:57:22,604 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:57:22,609 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:57:22,609 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 12:57:22,609 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:57:22,641 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:57:22,641 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 12:57:22,642 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:57:22,657 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:57:22,657 INFO L969 CHandler]: at location: C: (struct A20*)ldv_malloc(sizeof(struct A20)) [773] [2019-11-21 12:57:22,658 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:57:22,666 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:57:22,666 INFO L969 CHandler]: at location: C: (struct A20 *)( (char *)__mptr - ((size_t) &((struct A20 *)0)->dev) ) [781] [2019-11-21 12:57:22,667 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:57:22,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:57:22,692 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:57:22,702 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:57:22,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:57:22,775 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:57:22,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:57:22,947 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:57:22,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:22 WrapperNode [2019-11-21 12:57:22,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:57:22,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:57:22,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:57:22,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:57:22,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:22" (1/1) ... [2019-11-21 12:57:22,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:22" (1/1) ... [2019-11-21 12:57:22,993 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:22" (1/1) ... [2019-11-21 12:57:22,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:22" (1/1) ... [2019-11-21 12:57:23,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:22" (1/1) ... [2019-11-21 12:57:23,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:22" (1/1) ... [2019-11-21 12:57:23,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:22" (1/1) ... [2019-11-21 12:57:23,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:57:23,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:57:23,062 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:57:23,062 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:57:23,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:57:23,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:57:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:57:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:57:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:57:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:57:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 12:57:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 12:57:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 12:57:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 12:57:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 12:57:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 12:57:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 12:57:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:57:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 12:57:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 12:57:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 12:57:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 12:57:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 12:57:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 12:57:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 12:57:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 12:57:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 12:57:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 12:57:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 12:57:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 12:57:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 12:57:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 12:57:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 12:57:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 12:57:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 12:57:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 12:57:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 12:57:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 12:57:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 12:57:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 12:57:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 12:57:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 12:57:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 12:57:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 12:57:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 12:57:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 12:57:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_device [2019-11-21 12:57:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_device [2019-11-21 12:57:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_deregister_device [2019-11-21 12:57:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_20 [2019-11-21 12:57:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure free_20 [2019-11-21 12:57:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 12:57:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:57:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 12:57:23,149 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 12:57:23,149 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 12:57:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:57:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:57:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:57:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:57:23,151 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:57:23,151 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:57:23,151 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:57:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:57:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:57:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:57:23,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:57:23,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:57:23,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:57:23,153 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:57:23,153 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:57:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:57:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:57:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:57:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 12:57:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 12:57:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 12:57:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:57:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:57:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:57:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:57:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:57:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:57:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:57:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:57:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:57:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:57:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:57:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:57:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:57:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:57:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:57:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:57:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:57:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:57:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:57:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:57:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:57:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:57:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:57:23,160 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:57:23,160 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:57:23,160 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:57:23,160 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:57:23,161 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:57:23,161 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:57:23,161 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:57:23,161 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:57:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:57:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:57:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:57:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:57:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:57:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:57:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:57:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:57:23,168 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:57:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:57:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:57:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:57:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:57:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:57:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:57:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:57:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:57:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:57:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:57:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:57:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:57:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:57:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:57:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:57:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:57:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:57:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:57:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:57:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:57:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:57:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:57:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:57:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:57:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:57:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:57:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:57:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:57:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:57:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:57:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:57:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:57:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:57:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:57:23,183 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:57:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:57:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:57:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:57:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:57:23,184 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:57:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:57:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:57:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:57:23,185 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:57:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:57:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:57:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 12:57:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:57:23,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 12:57:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 12:57:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 12:57:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 12:57:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 12:57:23,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 12:57:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:57:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 12:57:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 12:57:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:57:23,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:57:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 12:57:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 12:57:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 12:57:23,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:57:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 12:57:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 12:57:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 12:57:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 12:57:23,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 12:57:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 12:57:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:57:23,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 12:57:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 12:57:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 12:57:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 12:57:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 12:57:23,193 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:57:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:57:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 12:57:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 12:57:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:57:23,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 12:57:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 12:57:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 12:57:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 12:57:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 12:57:23,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 12:57:23,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 12:57:23,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 12:57:23,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 12:57:23,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 12:57:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 12:57:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 12:57:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 12:57:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 12:57:23,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_device [2019-11-21 12:57:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_device [2019-11-21 12:57:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_deregister_device [2019-11-21 12:57:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_20 [2019-11-21 12:57:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure free_20 [2019-11-21 12:57:23,198 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 12:57:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:57:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:57:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:57:23,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:57:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:57:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 12:57:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 12:57:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 12:57:23,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 12:57:23,796 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:57:24,169 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:57:24,509 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 12:57:24,510 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 12:57:24,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:57:24 BoogieIcfgContainer [2019-11-21 12:57:24,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 12:57:24,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 12:57:24,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 12:57:24,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 12:57:24,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:57:22" (1/3) ... [2019-11-21 12:57:24,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497c69d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:57:24, skipping insertion in model container [2019-11-21 12:57:24,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:57:22" (2/3) ... [2019-11-21 12:57:24,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@497c69d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:57:24, skipping insertion in model container [2019-11-21 12:57:24,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:57:24" (3/3) ... [2019-11-21 12:57:24,520 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test20-2.i [2019-11-21 12:57:24,530 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 12:57:24,538 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-21 12:57:24,550 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-21 12:57:24,571 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 12:57:24,571 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 12:57:24,571 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 12:57:24,572 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 12:57:24,572 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 12:57:24,572 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 12:57:24,572 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 12:57:24,572 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 12:57:24,592 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2019-11-21 12:57:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 12:57:24,604 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:57:24,605 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:57:24,606 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:57:24,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:57:24,613 INFO L82 PathProgramCache]: Analyzing trace with hash -1730189716, now seen corresponding path program 1 times [2019-11-21 12:57:24,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:57:24,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [321268717] [2019-11-21 12:57:24,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:24,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:57:24,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:57:24,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:57:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:25,066 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:57:25,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:25,186 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [321268717] [2019-11-21 12:57:25,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:57:25,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 12:57:25,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213399201] [2019-11-21 12:57:25,197 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:57:25,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:57:25,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:57:25,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:57:25,227 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 5 states. [2019-11-21 12:57:25,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:57:25,305 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2019-11-21 12:57:25,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:57:25,308 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-21 12:57:25,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:57:25,328 INFO L225 Difference]: With dead ends: 50 [2019-11-21 12:57:25,328 INFO L226 Difference]: Without dead ends: 47 [2019-11-21 12:57:25,331 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:57:25,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-11-21 12:57:25,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2019-11-21 12:57:25,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-21 12:57:25,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2019-11-21 12:57:25,431 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 24 [2019-11-21 12:57:25,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:57:25,431 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2019-11-21 12:57:25,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:57:25,432 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2019-11-21 12:57:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-21 12:57:25,434 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:57:25,434 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:57:25,638 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:25,638 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:57:25,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:57:25,639 INFO L82 PathProgramCache]: Analyzing trace with hash -222637907, now seen corresponding path program 1 times [2019-11-21 12:57:25,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:57:25,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1500345029] [2019-11-21 12:57:25,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:57:25,962 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 21 conjunts are in the unsatisfiable core [2019-11-21 12:57:25,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:57:26,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:26,068 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:57:26,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:26,294 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1500345029] [2019-11-21 12:57:26,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:57:26,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2019-11-21 12:57:26,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473149548] [2019-11-21 12:57:26,299 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 12:57:26,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:57:26,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 12:57:26,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:57:26,300 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand 9 states. [2019-11-21 12:57:26,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:57:26,782 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2019-11-21 12:57:26,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 12:57:26,783 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-11-21 12:57:26,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:57:26,785 INFO L225 Difference]: With dead ends: 60 [2019-11-21 12:57:26,786 INFO L226 Difference]: Without dead ends: 60 [2019-11-21 12:57:26,787 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2019-11-21 12:57:26,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-21 12:57:26,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 55. [2019-11-21 12:57:26,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-21 12:57:26,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2019-11-21 12:57:26,806 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 24 [2019-11-21 12:57:26,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:57:26,806 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2019-11-21 12:57:26,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 12:57:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2019-11-21 12:57:26,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-21 12:57:26,808 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:57:26,808 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:57:27,012 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:27,012 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:57:27,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:57:27,013 INFO L82 PathProgramCache]: Analyzing trace with hash 754099497, now seen corresponding path program 1 times [2019-11-21 12:57:27,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:57:27,014 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [407671558] [2019-11-21 12:57:27,014 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:57:27,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 13 conjunts are in the unsatisfiable core [2019-11-21 12:57:27,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:57:27,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:27,396 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:57:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:27,642 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [407671558] [2019-11-21 12:57:27,642 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:57:27,642 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2019-11-21 12:57:27,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882902749] [2019-11-21 12:57:27,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 12:57:27,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:57:27,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 12:57:27,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2019-11-21 12:57:27,646 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 13 states. [2019-11-21 12:57:27,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:57:27,836 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2019-11-21 12:57:27,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 12:57:27,837 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 28 [2019-11-21 12:57:27,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:57:27,838 INFO L225 Difference]: With dead ends: 55 [2019-11-21 12:57:27,839 INFO L226 Difference]: Without dead ends: 55 [2019-11-21 12:57:27,839 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2019-11-21 12:57:27,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-21 12:57:27,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2019-11-21 12:57:27,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-21 12:57:27,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2019-11-21 12:57:27,848 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 28 [2019-11-21 12:57:27,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:57:27,848 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2019-11-21 12:57:27,848 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 12:57:27,849 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2019-11-21 12:57:27,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-21 12:57:27,850 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:57:27,852 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:57:28,054 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:28,055 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:57:28,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:57:28,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1902248320, now seen corresponding path program 1 times [2019-11-21 12:57:28,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:57:28,056 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [591717039] [2019-11-21 12:57:28,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:57:28,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 12:57:28,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:57:28,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:28,585 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:57:29,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:29,044 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [591717039] [2019-11-21 12:57:29,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:57:29,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 20 [2019-11-21 12:57:29,045 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200698111] [2019-11-21 12:57:29,046 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-21 12:57:29,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:57:29,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-21 12:57:29,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2019-11-21 12:57:29,046 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 21 states. [2019-11-21 12:57:29,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:57:29,813 INFO L93 Difference]: Finished difference Result 53 states and 54 transitions. [2019-11-21 12:57:29,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-21 12:57:29,813 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 29 [2019-11-21 12:57:29,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:57:29,814 INFO L225 Difference]: With dead ends: 53 [2019-11-21 12:57:29,814 INFO L226 Difference]: Without dead ends: 53 [2019-11-21 12:57:29,815 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=113, Invalid=589, Unknown=0, NotChecked=0, Total=702 [2019-11-21 12:57:29,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-11-21 12:57:29,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2019-11-21 12:57:29,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2019-11-21 12:57:29,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2019-11-21 12:57:29,823 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 29 [2019-11-21 12:57:29,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:57:29,823 INFO L462 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2019-11-21 12:57:29,823 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-21 12:57:29,823 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2019-11-21 12:57:29,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-21 12:57:29,824 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:57:29,824 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:57:30,025 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:30,026 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:57:30,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:57:30,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1159843829, now seen corresponding path program 1 times [2019-11-21 12:57:30,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:57:30,028 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [777717120] [2019-11-21 12:57:30,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:57:30,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-21 12:57:30,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:57:30,317 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 12:57:30,318 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:57:30,324 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:57:30,325 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:57:30,325 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:57:30,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:30,491 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:57:30,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:30,785 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [777717120] [2019-11-21 12:57:30,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:57:30,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 13 [2019-11-21 12:57:30,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479090473] [2019-11-21 12:57:30,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 12:57:30,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:57:30,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 12:57:30,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2019-11-21 12:57:30,788 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 14 states. [2019-11-21 12:57:31,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:57:31,358 INFO L93 Difference]: Finished difference Result 71 states and 73 transitions. [2019-11-21 12:57:31,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-21 12:57:31,359 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 30 [2019-11-21 12:57:31,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:57:31,360 INFO L225 Difference]: With dead ends: 71 [2019-11-21 12:57:31,360 INFO L226 Difference]: Without dead ends: 71 [2019-11-21 12:57:31,361 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2019-11-21 12:57:31,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-21 12:57:31,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 66. [2019-11-21 12:57:31,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-11-21 12:57:31,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 69 transitions. [2019-11-21 12:57:31,368 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 69 transitions. Word has length 30 [2019-11-21 12:57:31,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:57:31,369 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 69 transitions. [2019-11-21 12:57:31,369 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 12:57:31,369 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 69 transitions. [2019-11-21 12:57:31,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-21 12:57:31,371 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:57:31,371 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:57:31,574 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:31,575 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:57:31,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:57:31,576 INFO L82 PathProgramCache]: Analyzing trace with hash -948492916, now seen corresponding path program 1 times [2019-11-21 12:57:31,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:57:31,577 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [112888335] [2019-11-21 12:57:31,577 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:31,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:57:31,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2019-11-21 12:57:31,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:57:31,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:31,900 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:57:32,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:32,070 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [112888335] [2019-11-21 12:57:32,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:57:32,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2019-11-21 12:57:32,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290960359] [2019-11-21 12:57:32,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 12:57:32,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:57:32,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 12:57:32,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2019-11-21 12:57:32,072 INFO L87 Difference]: Start difference. First operand 66 states and 69 transitions. Second operand 13 states. [2019-11-21 12:57:32,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:57:32,324 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2019-11-21 12:57:32,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-21 12:57:32,325 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 30 [2019-11-21 12:57:32,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:57:32,327 INFO L225 Difference]: With dead ends: 71 [2019-11-21 12:57:32,327 INFO L226 Difference]: Without dead ends: 71 [2019-11-21 12:57:32,328 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2019-11-21 12:57:32,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-21 12:57:32,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 52. [2019-11-21 12:57:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-21 12:57:32,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 53 transitions. [2019-11-21 12:57:32,334 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 53 transitions. Word has length 30 [2019-11-21 12:57:32,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:57:32,335 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 53 transitions. [2019-11-21 12:57:32,335 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 12:57:32,335 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 53 transitions. [2019-11-21 12:57:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-11-21 12:57:32,336 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:57:32,336 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:57:32,538 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:32,539 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:57:32,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:57:32,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1740369313, now seen corresponding path program 1 times [2019-11-21 12:57:32,541 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:57:32,541 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1674429193] [2019-11-21 12:57:32,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:57:32,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-21 12:57:32,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:57:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:32,781 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:57:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:32,926 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1674429193] [2019-11-21 12:57:32,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:57:32,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 12:57:32,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007414236] [2019-11-21 12:57:32,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 12:57:32,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:57:32,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 12:57:32,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:57:32,931 INFO L87 Difference]: Start difference. First operand 52 states and 53 transitions. Second operand 3 states. [2019-11-21 12:57:32,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:57:32,987 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2019-11-21 12:57:32,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 12:57:32,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-11-21 12:57:32,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:57:32,989 INFO L225 Difference]: With dead ends: 60 [2019-11-21 12:57:32,989 INFO L226 Difference]: Without dead ends: 45 [2019-11-21 12:57:32,989 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:57:32,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-21 12:57:32,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2019-11-21 12:57:32,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-11-21 12:57:32,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2019-11-21 12:57:32,994 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 29 [2019-11-21 12:57:32,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:57:32,995 INFO L462 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2019-11-21 12:57:32,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 12:57:32,995 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2019-11-21 12:57:32,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-11-21 12:57:32,996 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:57:32,996 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:57:33,196 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:33,198 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, free_20Err0ASSERT_VIOLATIONMEMORY_FREE, free_20Err1ASSERT_VIOLATIONMEMORY_FREE, free_20Err2ASSERT_VIOLATIONMEMORY_FREE, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:57:33,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:57:33,198 INFO L82 PathProgramCache]: Analyzing trace with hash -789955704, now seen corresponding path program 1 times [2019-11-21 12:57:33,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:57:33,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1322804912] [2019-11-21 12:57:33,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:57:33,491 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-21 12:57:33,493 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:57:33,518 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:57:33,518 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-21 12:57:33,519 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:57:33,536 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 12:57:33,537 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:57:33,540 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:57:33,541 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 12:57:33,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:57:33,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:57:33,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:57:33,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:57:33,676 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 12 treesize of output 9 [2019-11-21 12:57:33,676 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:57:33,678 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:57:33,678 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:57:33,679 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2019-11-21 12:57:33,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:57:33,762 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 5 treesize of output 3 [2019-11-21 12:57:33,763 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:57:33,765 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:57:33,765 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:57:33,765 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:9, output treesize:3 [2019-11-21 12:57:45,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:57:45,934 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:57:50,453 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:57:50,455 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 12:57:50,464 INFO L168 Benchmark]: Toolchain (without parser) took 28431.18 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 307.2 MB). Free memory was 951.0 MB in the beginning and 952.9 MB in the end (delta: -1.9 MB). Peak memory consumption was 305.3 MB. Max. memory is 11.5 GB. [2019-11-21 12:57:50,465 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:57:50,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 917.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -140.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-21 12:57:50,469 INFO L168 Benchmark]: Boogie Preprocessor took 104.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-21 12:57:50,473 INFO L168 Benchmark]: RCFGBuilder took 1449.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.3 MB in the end (delta: 110.7 MB). Peak memory consumption was 110.7 MB. Max. memory is 11.5 GB. [2019-11-21 12:57:50,478 INFO L168 Benchmark]: TraceAbstraction took 25948.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 172.0 MB). Free memory was 968.3 MB in the beginning and 952.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 187.4 MB. Max. memory is 11.5 GB. [2019-11-21 12:57:50,481 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 917.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -140.0 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 104.61 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 1449.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.3 MB in the end (delta: 110.7 MB). Peak memory consumption was 110.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25948.44 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 172.0 MB). Free memory was 968.3 MB in the beginning and 952.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 187.4 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...