./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b5699aa Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.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 7210087ed4202b2135d1108918e88b59870adcd4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-21 21:48:56,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 21:48:56,583 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 21:48:56,602 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 21:48:56,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 21:48:56,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 21:48:56,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 21:48:56,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 21:48:56,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 21:48:56,624 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 21:48:56,625 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 21:48:56,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 21:48:56,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 21:48:56,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 21:48:56,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 21:48:56,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 21:48:56,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 21:48:56,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 21:48:56,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 21:48:56,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 21:48:56,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 21:48:56,655 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 21:48:56,656 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 21:48:56,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 21:48:56,661 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 21:48:56,661 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 21:48:56,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 21:48:56,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 21:48:56,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 21:48:56,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 21:48:56,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 21:48:56,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 21:48:56,667 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 21:48:56,668 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 21:48:56,671 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 21:48:56,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 21:48:56,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 21:48:56,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 21:48:56,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 21:48:56,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 21:48:56,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 21:48:56,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 21:48:56,713 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 21:48:56,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 21:48:56,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 21:48:56,718 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 21:48:56,718 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 21:48:56,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 21:48:56,720 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 21:48:56,720 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 21:48:56,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 21:48:56,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 21:48:56,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 21:48:56,723 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 21:48:56,723 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 21:48:56,723 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 21:48:56,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 21:48:56,724 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-21 21:48:56,724 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 21:48:56,725 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 21:48:56,726 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 21:48:56,727 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 21:48:56,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 21:48:56,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 21:48:56,728 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 21:48:56,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 21:48:56,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 21:48:56,729 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 21:48:56,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 21:48:56,729 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 21:48:56,730 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 21:48:56,730 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 21:48:56,731 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 -> 7210087ed4202b2135d1108918e88b59870adcd4 [2019-11-21 21:48:57,072 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 21:48:57,088 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 21:48:57,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 21:48:57,096 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 21:48:57,097 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 21:48:57,099 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2019-11-21 21:48:57,170 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8ec417b/8b8b20fff3ce4b55bbb47f07b0ec2517/FLAG729e694d0 [2019-11-21 21:48:57,700 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 21:48:57,700 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test1-3.i [2019-11-21 21:48:57,730 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8ec417b/8b8b20fff3ce4b55bbb47f07b0ec2517/FLAG729e694d0 [2019-11-21 21:48:58,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef8ec417b/8b8b20fff3ce4b55bbb47f07b0ec2517 [2019-11-21 21:48:58,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 21:48:58,014 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 21:48:58,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 21:48:58,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 21:48:58,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 21:48:58,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:48:58" (1/1) ... [2019-11-21 21:48:58,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab00f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:58, skipping insertion in model container [2019-11-21 21:48:58,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:48:58" (1/1) ... [2019-11-21 21:48:58,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 21:48:58,104 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 21:48:58,567 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:48:58,567 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 21:48:58,568 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:48:58,580 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:48:58,580 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 21:48:58,580 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:48:58,583 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:48:58,583 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 21:48:58,584 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:48:58,586 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:48:58,587 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 21:48:58,587 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:48:58,611 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:48:58,611 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 21:48:58,611 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:48:58,620 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 21:48:58,621 INFO L968 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [759] [2019-11-21 21:48:58,621 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 21:48:58,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:48:58,653 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 21:48:58,675 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 21:48:58,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:48:58,771 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 21:48:58,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 21:48:58,921 INFO L205 MainTranslator]: Completed translation [2019-11-21 21:48:58,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:58 WrapperNode [2019-11-21 21:48:58,922 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 21:48:58,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 21:48:58,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 21:48:58,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 21:48:58,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:58" (1/1) ... [2019-11-21 21:48:58,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:58" (1/1) ... [2019-11-21 21:48:58,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:58" (1/1) ... [2019-11-21 21:48:58,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:58" (1/1) ... [2019-11-21 21:48:59,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:58" (1/1) ... [2019-11-21 21:48:59,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:58" (1/1) ... [2019-11-21 21:48:59,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:58" (1/1) ... [2019-11-21 21:48:59,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 21:48:59,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 21:48:59,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 21:48:59,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 21:48:59,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 21:48:59,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 21:48:59,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 21:48:59,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 21:48:59,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-21 21:48:59,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 21:48:59,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 21:48:59,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 21:48:59,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 21:48:59,104 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 21:48:59,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 21:48:59,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 21:48:59,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 21:48:59,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 21:48:59,105 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 21:48:59,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 21:48:59,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 21:48:59,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 21:48:59,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 21:48:59,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 21:48:59,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 21:48:59,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 21:48:59,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 21:48:59,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 21:48:59,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 21:48:59,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 21:48:59,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 21:48:59,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 21:48:59,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 21:48:59,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 21:48:59,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 21:48:59,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 21:48:59,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 21:48:59,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 21:48:59,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 21:48:59,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 21:48:59,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 21:48:59,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 21:48:59,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 21:48:59,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 21:48:59,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 21:48:59,112 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 21:48:59,112 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 21:48:59,112 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 21:48:59,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 21:48:59,113 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 21:48:59,114 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 21:48:59,114 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 21:48:59,115 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 21:48:59,115 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 21:48:59,116 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 21:48:59,116 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 21:48:59,117 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 21:48:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 21:48:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 21:48:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 21:48:59,119 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 21:48:59,120 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 21:48:59,120 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 21:48:59,120 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 21:48:59,121 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 21:48:59,121 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 21:48:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 21:48:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 21:48:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 21:48:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 21:48:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 21:48:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 21:48:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 21:48:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 21:48:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 21:48:59,124 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 21:48:59,124 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 21:48:59,124 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 21:48:59,124 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 21:48:59,124 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 21:48:59,124 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 21:48:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 21:48:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 21:48:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 21:48:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 21:48:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 21:48:59,126 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 21:48:59,126 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 21:48:59,126 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 21:48:59,126 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 21:48:59,126 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 21:48:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 21:48:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 21:48:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 21:48:59,127 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 21:48:59,128 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 21:48:59,128 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 21:48:59,128 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 21:48:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 21:48:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 21:48:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 21:48:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 21:48:59,129 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 21:48:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 21:48:59,130 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 21:48:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 21:48:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 21:48:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 21:48:59,131 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 21:48:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 21:48:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 21:48:59,132 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 21:48:59,133 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 21:48:59,134 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 21:48:59,137 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 21:48:59,137 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 21:48:59,137 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 21:48:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 21:48:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 21:48:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 21:48:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 21:48:59,138 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 21:48:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 21:48:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 21:48:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 21:48:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 21:48:59,139 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 21:48:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 21:48:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 21:48:59,140 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 21:48:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 21:48:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 21:48:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 21:48:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 21:48:59,141 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 21:48:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 21:48:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 21:48:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 21:48:59,142 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 21:48:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 21:48:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 21:48:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 21:48:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 21:48:59,143 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 21:48:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 21:48:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 21:48:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 21:48:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 21:48:59,144 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 21:48:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 21:48:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 21:48:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 21:48:59,145 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 21:48:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 21:48:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 21:48:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 21:48:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 21:48:59,146 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 21:48:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 21:48:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 21:48:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 21:48:59,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 21:48:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 21:48:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 21:48:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 21:48:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 21:48:59,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 21:48:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 21:48:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 21:48:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 21:48:59,149 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 21:48:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 21:48:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 21:48:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 21:48:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 21:48:59,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 21:48:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 21:48:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 21:48:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 21:48:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 21:48:59,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 21:48:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 21:48:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 21:48:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 21:48:59,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 21:48:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 21:48:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 21:48:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 21:48:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 21:48:59,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 21:48:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 21:48:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 21:48:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 21:48:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 21:48:59,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 21:48:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 21:48:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 21:48:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 21:48:59,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 21:48:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 21:48:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 21:48:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 21:48:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 21:48:59,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 21:48:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 21:48:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 21:48:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 21:48:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 21:48:59,157 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 21:48:59,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 21:48:59,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 21:48:59,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 21:48:59,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 21:48:59,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-21 21:48:59,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 21:48:59,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 21:48:59,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 21:48:59,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 21:48:59,812 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 21:49:00,191 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 21:49:00,539 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 21:49:00,539 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 21:49:00,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:49:00 BoogieIcfgContainer [2019-11-21 21:49:00,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 21:49:00,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 21:49:00,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 21:49:00,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 21:49:00,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:48:58" (1/3) ... [2019-11-21 21:49:00,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9ad6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:49:00, skipping insertion in model container [2019-11-21 21:49:00,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:48:58" (2/3) ... [2019-11-21 21:49:00,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d9ad6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:49:00, skipping insertion in model container [2019-11-21 21:49:00,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:49:00" (3/3) ... [2019-11-21 21:49:00,550 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test1-3.i [2019-11-21 21:49:00,560 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 21:49:00,568 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-21 21:49:00,581 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-21 21:49:00,604 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 21:49:00,604 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 21:49:00,604 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 21:49:00,604 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 21:49:00,606 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 21:49:00,610 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 21:49:00,611 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 21:49:00,611 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 21:49:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2019-11-21 21:49:00,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-21 21:49:00,639 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:49:00,640 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:49:00,641 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:49:00,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:49:00,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1839111754, now seen corresponding path program 1 times [2019-11-21 21:49:00,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:49:00,659 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [360486581] [2019-11-21 21:49:00,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:00,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:49:00,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 21:49:00,963 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:49:01,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:01,018 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:49:01,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:01,104 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [360486581] [2019-11-21 21:49:01,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:49:01,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 21:49:01,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879768823] [2019-11-21 21:49:01,111 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 21:49:01,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:49:01,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 21:49:01,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:49:01,129 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 5 states. [2019-11-21 21:49:01,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:49:01,165 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-11-21 21:49:01,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:49:01,168 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-11-21 21:49:01,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:49:01,178 INFO L225 Difference]: With dead ends: 24 [2019-11-21 21:49:01,179 INFO L226 Difference]: Without dead ends: 21 [2019-11-21 21:49:01,181 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:49:01,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-21 21:49:01,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-21 21:49:01,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-21 21:49:01,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-11-21 21:49:01,227 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 13 [2019-11-21 21:49:01,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:49:01,228 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-11-21 21:49:01,228 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 21:49:01,228 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-11-21 21:49:01,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-21 21:49:01,229 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:49:01,230 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:49:01,433 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:01,433 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:49:01,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:49:01,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1177889137, now seen corresponding path program 1 times [2019-11-21 21:49:01,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:49:01,435 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1374023088] [2019-11-21 21:49:01,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:49:01,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 21:49:01,738 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:49:01,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:01,794 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:49:01,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:01,876 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1374023088] [2019-11-21 21:49:01,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:49:01,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-21 21:49:01,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104857541] [2019-11-21 21:49:01,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 21:49:01,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:49:01,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 21:49:01,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 21:49:01,879 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 9 states. [2019-11-21 21:49:02,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:49:02,011 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-11-21 21:49:02,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 21:49:02,012 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-11-21 21:49:02,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:49:02,013 INFO L225 Difference]: With dead ends: 20 [2019-11-21 21:49:02,013 INFO L226 Difference]: Without dead ends: 20 [2019-11-21 21:49:02,014 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 21:49:02,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-21 21:49:02,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-21 21:49:02,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-21 21:49:02,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2019-11-21 21:49:02,019 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 14 [2019-11-21 21:49:02,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:49:02,019 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2019-11-21 21:49:02,020 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 21:49:02,020 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2019-11-21 21:49:02,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-21 21:49:02,021 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:49:02,021 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:49:02,223 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:02,224 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:49:02,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:49:02,225 INFO L82 PathProgramCache]: Analyzing trace with hash 2140142808, now seen corresponding path program 1 times [2019-11-21 21:49:02,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:49:02,226 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1329047668] [2019-11-21 21:49:02,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:49:02,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 21:49:02,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:49:02,510 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 21:49:02,511 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:49:02,516 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:49:02,517 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 21:49:02,517 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 21:49:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:02,542 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:49:02,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:02,642 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1329047668] [2019-11-21 21:49:02,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:49:02,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 21:49:02,643 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290785019] [2019-11-21 21:49:02,643 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 21:49:02,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:49:02,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 21:49:02,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:49:02,646 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 5 states. [2019-11-21 21:49:02,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:49:02,700 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-11-21 21:49:02,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:49:02,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-11-21 21:49:02,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:49:02,702 INFO L225 Difference]: With dead ends: 26 [2019-11-21 21:49:02,702 INFO L226 Difference]: Without dead ends: 26 [2019-11-21 21:49:02,702 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:49:02,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-21 21:49:02,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-21 21:49:02,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-21 21:49:02,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-11-21 21:49:02,709 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 15 [2019-11-21 21:49:02,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:49:02,709 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-11-21 21:49:02,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 21:49:02,709 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-11-21 21:49:02,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-21 21:49:02,710 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:49:02,710 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:49:02,910 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:02,913 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:49:02,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:49:02,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1267320807, now seen corresponding path program 1 times [2019-11-21 21:49:02,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:49:02,915 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1317662093] [2019-11-21 21:49:02,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:49:03,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-21 21:49:03,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:49:03,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:03,137 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:49:03,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:03,161 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1317662093] [2019-11-21 21:49:03,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 21:49:03,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-21 21:49:03,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641571260] [2019-11-21 21:49:03,162 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 21:49:03,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 21:49:03,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 21:49:03,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:49:03,163 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 5 states. [2019-11-21 21:49:03,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 21:49:03,194 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-11-21 21:49:03,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 21:49:03,195 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-11-21 21:49:03,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 21:49:03,198 INFO L225 Difference]: With dead ends: 27 [2019-11-21 21:49:03,198 INFO L226 Difference]: Without dead ends: 27 [2019-11-21 21:49:03,199 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 21:49:03,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-21 21:49:03,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2019-11-21 21:49:03,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-21 21:49:03,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-11-21 21:49:03,206 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2019-11-21 21:49:03,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 21:49:03,207 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-11-21 21:49:03,207 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 21:49:03,207 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-11-21 21:49:03,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-21 21:49:03,208 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 21:49:03,208 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 21:49:03,411 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:03,412 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 21:49:03,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 21:49:03,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1794725483, now seen corresponding path program 1 times [2019-11-21 21:49:03,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 21:49:03,413 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1676016470] [2019-11-21 21:49:03,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 21:49:03,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-21 21:49:03,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 21:49:03,716 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 21:49:03,718 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 21:49:03,720 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 21:49:03,748 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 21:49:03,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:49:03,753 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 21:49:03,754 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 21:49:03,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:49:03,770 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:49:03,786 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:49:03,799 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 21:49:10,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 21:49:10,038 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 21:49:14,390 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 21:49:14,392 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 21:49:14,398 INFO L168 Benchmark]: Toolchain (without parser) took 16384.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.8 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -80.5 MB). Peak memory consumption was 110.4 MB. Max. memory is 11.5 GB. [2019-11-21 21:49:14,399 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 21:49:14,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 904.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.6 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -82.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-11-21 21:49:14,400 INFO L168 Benchmark]: Boogie Preprocessor took 103.37 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 21:49:14,401 INFO L168 Benchmark]: RCFGBuilder took 1514.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 926.7 MB in the end (delta: 107.8 MB). Peak memory consumption was 107.8 MB. Max. memory is 11.5 GB. [2019-11-21 21:49:14,402 INFO L168 Benchmark]: TraceAbstraction took 13853.13 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 102.2 MB). Free memory was 919.8 MB in the beginning and 1.0 GB in the end (delta: -113.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 21:49:14,405 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 904.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.6 MB). Free memory was 952.3 MB in the beginning and 1.0 GB in the end (delta: -82.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 103.37 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1514.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 926.7 MB in the end (delta: 107.8 MB). Peak memory consumption was 107.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 13853.13 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 102.2 MB). Free memory was 919.8 MB in the beginning and 1.0 GB in the end (delta: -113.0 MB). There was no memory consumed. 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...