./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3c7f8519a8c276dd62400de22bd8a8ed2f8e4176 --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-264dba8 [2019-11-21 12:01:50,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:01:50,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:01:50,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:01:50,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:01:50,720 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:01:50,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:01:50,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:01:50,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:01:50,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:01:50,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:01:50,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:01:50,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:01:50,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:01:50,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:01:50,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:01:50,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:01:50,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:01:50,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:01:50,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:01:50,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:01:50,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:01:50,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:01:50,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:01:50,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:01:50,748 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:01:50,748 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:01:50,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:01:50,749 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:01:50,751 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:01:50,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:01:50,752 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:01:50,753 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:01:50,754 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:01:50,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:01:50,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:01:50,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:01:50,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:01:50,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:01:50,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:01:50,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:01:50,758 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2019-11-21 12:01:50,772 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:01:50,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:01:50,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:01:50,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:01:50,774 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:01:50,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:01:50,775 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:01:50,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:01:50,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:01:50,775 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:01:50,775 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:01:50,776 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:01:50,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:01:50,776 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:01:50,776 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:50,776 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:01:50,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:01:50,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:01:50,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:01:50,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:01:50,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:01:50,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:01:50,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:01:50,778 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:01:50,778 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:01:50,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:01:50,779 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c7f8519a8c276dd62400de22bd8a8ed2f8e4176 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:01:51,134 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:01:51,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:01:51,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:01:51,150 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:01:51,150 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:01:51,151 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2019-11-21 12:01:51,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ce8f79a/ea2f4f8e3cb2419b9f36b18966a72bee/FLAG88e03adb6 [2019-11-21 12:01:51,782 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:01:51,783 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2019-11-21 12:01:51,798 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ce8f79a/ea2f4f8e3cb2419b9f36b18966a72bee/FLAG88e03adb6 [2019-11-21 12:01:52,034 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ce8f79a/ea2f4f8e3cb2419b9f36b18966a72bee [2019-11-21 12:01:52,037 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:01:52,038 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:01:52,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:01:52,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:01:52,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:01:52,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:01:52" (1/1) ... [2019-11-21 12:01:52,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@651ebe71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:52, skipping insertion in model container [2019-11-21 12:01:52,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:01:52" (1/1) ... [2019-11-21 12:01:52,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:01:52,102 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:01:52,541 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:01:52,541 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 12:01:52,542 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:52,553 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:01:52,554 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 12:01:52,554 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:52,556 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:01:52,557 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 12:01:52,557 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:52,559 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:01:52,559 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 12:01:52,560 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:52,583 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:01:52,583 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 12:01:52,584 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:52,593 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:01:52,593 INFO L969 CHandler]: at location: C: (struct A18 **)ldv_malloc(sizeof(struct A18*)*len) [763] [2019-11-21 12:01:52,594 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:52,595 INFO L966 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-21 12:01:52,596 INFO L969 CHandler]: at location: C: (struct A18 *)ldv_malloc(sizeof(struct A18)) [769] [2019-11-21 12:01:52,596 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:01:52,600 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:01:52,622 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:01:52,631 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:01:52,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:01:52,711 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:01:52,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:01:52,909 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:01:52,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:52 WrapperNode [2019-11-21 12:01:52,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:01:52,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:01:52,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:01:52,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:01:52,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:52" (1/1) ... [2019-11-21 12:01:52,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:52" (1/1) ... [2019-11-21 12:01:52,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:52" (1/1) ... [2019-11-21 12:01:52,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:52" (1/1) ... [2019-11-21 12:01:52,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:52" (1/1) ... [2019-11-21 12:01:53,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:52" (1/1) ... [2019-11-21 12:01:53,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:52" (1/1) ... [2019-11-21 12:01:53,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:01:53,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:01:53,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:01:53,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:01:53,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:01:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:01:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:01:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:01:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:01:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:01:53,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 12:01:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 12:01:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 12:01:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 12:01:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 12:01:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 12:01:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 12:01:53,090 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:01:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 12:01:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 12:01:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 12:01:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 12:01:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 12:01:53,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 12:01:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 12:01:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 12:01:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 12:01:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 12:01:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 12:01:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 12:01:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 12:01:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 12:01:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 12:01:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 12:01:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 12:01:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 12:01:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 12:01:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 12:01:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 12:01:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 12:01:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 12:01:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 12:01:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 12:01:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 12:01:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 12:01:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 12:01:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 12:01:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:01:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 12:01:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 12:01:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 12:01:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:01:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:01:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:01:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:01:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:01:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:01:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:01:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:01:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:01:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:01:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:01:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:01:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:01:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:01:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:01:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:01:53,097 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:01:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:01:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 12:01:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 12:01:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 12:01:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:01:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:01:53,098 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:01:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:01:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:01:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:01:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:01:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:01:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:01:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:01:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:01:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:01:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:01:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:01:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:01:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:01:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:01:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:01:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:01:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:01:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:01:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:01:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:01:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:01:53,101 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:01:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:01:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:01:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:01:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:01:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:01:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:01:53,102 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:01:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:01:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:01:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:01:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:01:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:01:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:01:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:01:53,103 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:01:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:01:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:01:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:01:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:01:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:01:53,104 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:01:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:01:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:01:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:01:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:01:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:01:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:01:53,105 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:01:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:01:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:01:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:01:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:01:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:01:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:01:53,106 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:01:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:01:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:01:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:01:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:01:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:01:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:01:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:01:53,107 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:01:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:01:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:01:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:01:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:01:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:01:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:01:53,108 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:01:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:01:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:01:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:01:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:01:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:01:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:01:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:01:53,109 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:01:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:01:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:01:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:01:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 12:01:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:01:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 12:01:53,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 12:01:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 12:01:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 12:01:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 12:01:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 12:01:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:01:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 12:01:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 12:01:53,111 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:01:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:01:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 12:01:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 12:01:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 12:01:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:01:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 12:01:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 12:01:53,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 12:01:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 12:01:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 12:01:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 12:01:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:01:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 12:01:53,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 12:01:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 12:01:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 12:01:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 12:01:53,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:01:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:01:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 12:01:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 12:01:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:01:53,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 12:01:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 12:01:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 12:01:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 12:01:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 12:01:53,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 12:01:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 12:01:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 12:01:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 12:01:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 12:01:53,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 12:01:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 12:01:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 12:01:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 12:01:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 12:01:53,118 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:01:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:01:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:01:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:01:53,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:01:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 12:01:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 12:01:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 12:01:53,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 12:01:53,751 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:01:54,195 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:01:54,621 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 12:01:54,621 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-21 12:01:54,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:01:54 BoogieIcfgContainer [2019-11-21 12:01:54,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 12:01:54,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 12:01:54,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 12:01:54,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 12:01:54,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:01:52" (1/3) ... [2019-11-21 12:01:54,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b070d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:01:54, skipping insertion in model container [2019-11-21 12:01:54,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:01:52" (2/3) ... [2019-11-21 12:01:54,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b070d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:01:54, skipping insertion in model container [2019-11-21 12:01:54,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:01:54" (3/3) ... [2019-11-21 12:01:54,639 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test18.i [2019-11-21 12:01:54,649 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 12:01:54,658 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 81 error locations. [2019-11-21 12:01:54,670 INFO L249 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2019-11-21 12:01:54,695 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 12:01:54,696 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 12:01:54,696 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 12:01:54,696 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 12:01:54,697 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 12:01:54,697 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 12:01:54,697 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 12:01:54,697 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 12:01:54,723 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2019-11-21 12:01:54,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 12:01:54,733 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:01:54,734 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:01:54,735 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_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:01:54,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:01:54,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1935412654, now seen corresponding path program 1 times [2019-11-21 12:01:54,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:01:54,752 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [315068573] [2019-11-21 12:01:54,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:01:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:01:55,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:01:55,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:01:55,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:01:55,119 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:01:55,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:01:55,223 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [315068573] [2019-11-21 12:01:55,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:01:55,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 12:01:55,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997612895] [2019-11-21 12:01:55,231 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:01:55,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:01:55,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:01:55,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:01:55,251 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 5 states. [2019-11-21 12:01:55,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:01:55,458 INFO L93 Difference]: Finished difference Result 78 states and 90 transitions. [2019-11-21 12:01:55,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:01:55,461 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-11-21 12:01:55,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:01:55,475 INFO L225 Difference]: With dead ends: 78 [2019-11-21 12:01:55,475 INFO L226 Difference]: Without dead ends: 75 [2019-11-21 12:01:55,477 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:01:55,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-11-21 12:01:55,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 48. [2019-11-21 12:01:55,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-21 12:01:55,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2019-11-21 12:01:55,555 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2019-11-21 12:01:55,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:01:55,555 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2019-11-21 12:01:55,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:01:55,556 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2019-11-21 12:01:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-21 12:01:55,558 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:01:55,558 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:01:55,770 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:01:55,772 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_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:01:55,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:01:55,774 INFO L82 PathProgramCache]: Analyzing trace with hash -616744307, now seen corresponding path program 1 times [2019-11-21 12:01:55,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:01:55,775 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1284556482] [2019-11-21 12:01:55,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:01:56,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:01:56,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:01:56,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:01:56,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:01:56,019 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:01:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:01:56,088 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1284556482] [2019-11-21 12:01:56,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:01:56,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-21 12:01:56,088 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963113755] [2019-11-21 12:01:56,091 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-21 12:01:56,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:01:56,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-21 12:01:56,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:01:56,092 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 3 states. [2019-11-21 12:01:56,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:01:56,216 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2019-11-21 12:01:56,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-21 12:01:56,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-21 12:01:56,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:01:56,219 INFO L225 Difference]: With dead ends: 76 [2019-11-21 12:01:56,219 INFO L226 Difference]: Without dead ends: 73 [2019-11-21 12:01:56,222 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-21 12:01:56,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-11-21 12:01:56,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 44. [2019-11-21 12:01:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-21 12:01:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2019-11-21 12:01:56,238 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 17 [2019-11-21 12:01:56,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:01:56,239 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2019-11-21 12:01:56,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-21 12:01:56,239 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2019-11-21 12:01:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-21 12:01:56,241 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:01:56,241 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 12:01:56,445 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:01:56,445 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_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:01:56,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:01:56,447 INFO L82 PathProgramCache]: Analyzing trace with hash -183177848, now seen corresponding path program 1 times [2019-11-21 12:01:56,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:01:56,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1327182842] [2019-11-21 12:01:56,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:01:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:01:56,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 12:01:56,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:01:56,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:01:56,744 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:01:56,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:01:56,774 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1327182842] [2019-11-21 12:01:56,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:01:56,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 12:01:56,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505169392] [2019-11-21 12:01:56,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:01:56,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:01:56,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:01:56,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:01:56,777 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand 6 states. [2019-11-21 12:01:56,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:01:56,881 INFO L93 Difference]: Finished difference Result 93 states and 101 transitions. [2019-11-21 12:01:56,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:01:56,884 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-11-21 12:01:56,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:01:56,885 INFO L225 Difference]: With dead ends: 93 [2019-11-21 12:01:56,886 INFO L226 Difference]: Without dead ends: 93 [2019-11-21 12:01:56,888 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:01:56,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-11-21 12:01:56,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 51. [2019-11-21 12:01:56,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2019-11-21 12:01:56,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2019-11-21 12:01:56,905 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 18 [2019-11-21 12:01:56,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:01:56,906 INFO L462 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2019-11-21 12:01:56,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:01:56,906 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2019-11-21 12:01:56,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:01:56,908 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:01:56,908 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:01:57,120 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:01:57,121 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_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:01:57,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:01:57,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1089879194, now seen corresponding path program 1 times [2019-11-21 12:01:57,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:01:57,122 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [432591989] [2019-11-21 12:01:57,122 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:01:57,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:01:57,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 12:01:57,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:01:57,472 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 12:01:57,474 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:01:57,483 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:01:57,484 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:01:57,484 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:01:57,604 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:01:57,604 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 39 [2019-11-21 12:01:57,606 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:01:57,630 INFO L567 ElimStorePlain]: treesize reduction 14, result has 51.7 percent of original size [2019-11-21 12:01:57,631 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:01:57,632 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:15 [2019-11-21 12:01:57,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:01:57,673 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:02:02,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:02:02,106 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [432591989] [2019-11-21 12:02:02,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:02:02,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-11-21 12:02:02,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964152329] [2019-11-21 12:02:02,107 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-21 12:02:02,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:02:02,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-21 12:02:02,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=123, Unknown=1, NotChecked=0, Total=156 [2019-11-21 12:02:02,109 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand 13 states. [2019-11-21 12:02:19,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:02:19,592 INFO L93 Difference]: Finished difference Result 197 states and 235 transitions. [2019-11-21 12:02:19,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 12:02:19,593 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2019-11-21 12:02:19,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:02:19,597 INFO L225 Difference]: With dead ends: 197 [2019-11-21 12:02:19,597 INFO L226 Difference]: Without dead ends: 197 [2019-11-21 12:02:19,598 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=76, Invalid=265, Unknown=1, NotChecked=0, Total=342 [2019-11-21 12:02:19,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-11-21 12:02:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 66. [2019-11-21 12:02:19,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-11-21 12:02:19,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2019-11-21 12:02:19,611 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 23 [2019-11-21 12:02:19,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:02:19,612 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2019-11-21 12:02:19,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-21 12:02:19,612 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2019-11-21 12:02:19,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:02:19,613 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:02:19,613 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:02:19,816 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:02:19,817 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_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:02:19,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:02:19,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1089879195, now seen corresponding path program 1 times [2019-11-21 12:02:19,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:02:19,819 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1947570886] [2019-11-21 12:02:19,819 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:02:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:02:20,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 20 conjunts are in the unsatisfiable core [2019-11-21 12:02:20,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:02:20,124 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 12:02:20,125 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:02:20,139 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:02:20,144 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-11-21 12:02:20,144 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:02:20,152 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:02:20,152 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:02:20,152 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 12:02:22,337 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:02:22,338 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2019-11-21 12:02:22,340 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:02:22,364 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:02:22,384 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:02:22,385 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2019-11-21 12:02:22,386 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:02:22,402 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:02:22,403 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:02:22,403 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2019-11-21 12:02:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:02:22,440 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:02:22,655 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:02:23,989 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:02:23,989 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:02:23,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:02:23,992 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:02:23,995 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:02:23,996 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:02:23,998 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:02:24,000 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:02:28,767 WARN L192 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 60 DAG size of output: 35 [2019-11-21 12:02:28,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:02:31,278 INFO L392 ElimStorePlain]: Different costs {1=[|v_#valid_187|], 2=[|v_#length_144|]} [2019-11-21 12:02:31,288 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 12:02:31,289 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:02:31,300 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:02:31,302 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 12:02:31,302 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:02:31,313 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:02:31,314 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:02:31,314 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:23, output treesize:5 [2019-11-21 12:02:31,950 INFO L392 ElimStorePlain]: Different costs {1=[|#valid|], 2=[|#length|]} [2019-11-21 12:02:31,959 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-11-21 12:02:31,960 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:02:31,979 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:02:31,982 INFO L172 IndexEqualityManager]: detected equality via solver [2019-11-21 12:02:31,983 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:02:32,014 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:02:32,015 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:02:32,015 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:33, output treesize:16 [2019-11-21 12:02:32,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:02:32,163 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1947570886] [2019-11-21 12:02:32,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:02:32,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 19 [2019-11-21 12:02:32,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976938972] [2019-11-21 12:02:32,165 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-11-21 12:02:32,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:02:32,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-11-21 12:02:32,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=329, Unknown=2, NotChecked=0, Total=380 [2019-11-21 12:02:32,167 INFO L87 Difference]: Start difference. First operand 66 states and 83 transitions. Second operand 20 states. [2019-11-21 12:02:57,779 WARN L192 SmtUtils]: Spent 4.36 s on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-11-21 12:03:11,152 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2019-11-21 12:03:19,528 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2019-11-21 12:03:23,854 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-11-21 12:03:33,555 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2019-11-21 12:03:33,961 WARN L192 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2019-11-21 12:04:00,202 WARN L192 SmtUtils]: Spent 8.23 s on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2019-11-21 12:04:15,941 WARN L192 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 56 DAG size of output: 27 [2019-11-21 12:04:26,474 WARN L192 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 58 DAG size of output: 29 [2019-11-21 12:04:36,408 WARN L192 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 29 [2019-11-21 12:04:55,404 WARN L192 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 18 [2019-11-21 12:05:12,534 WARN L192 SmtUtils]: Spent 12.68 s on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2019-11-21 12:05:33,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:05:33,867 INFO L93 Difference]: Finished difference Result 268 states and 310 transitions. [2019-11-21 12:05:33,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-11-21 12:05:33,869 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 23 [2019-11-21 12:05:33,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:05:33,872 INFO L225 Difference]: With dead ends: 268 [2019-11-21 12:05:33,872 INFO L226 Difference]: Without dead ends: 268 [2019-11-21 12:05:33,874 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 25 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 4 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 89.8s TimeCoverageRelationStatistics Valid=314, Invalid=1566, Unknown=12, NotChecked=0, Total=1892 [2019-11-21 12:05:33,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2019-11-21 12:05:33,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 91. [2019-11-21 12:05:33,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-11-21 12:05:33,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 124 transitions. [2019-11-21 12:05:33,890 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 124 transitions. Word has length 23 [2019-11-21 12:05:33,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:05:33,890 INFO L462 AbstractCegarLoop]: Abstraction has 91 states and 124 transitions. [2019-11-21 12:05:33,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-11-21 12:05:33,891 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 124 transitions. [2019-11-21 12:05:33,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-21 12:05:33,892 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:05:33,892 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:05:34,093 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:34,094 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:05:34,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:05:34,095 INFO L82 PathProgramCache]: Analyzing trace with hash 584320569, now seen corresponding path program 1 times [2019-11-21 12:05:34,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:05:34,096 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1035441331] [2019-11-21 12:05:34,096 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:05:34,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-21 12:05:34,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:05:34,362 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:05:34,362 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:05:34,405 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:05:34,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1035441331] [2019-11-21 12:05:34,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 12:05:34,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-11-21 12:05:34,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994768011] [2019-11-21 12:05:34,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:05:34,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:05:34,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:05:34,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:05:34,407 INFO L87 Difference]: Start difference. First operand 91 states and 124 transitions. Second operand 5 states. [2019-11-21 12:05:34,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:05:34,477 INFO L93 Difference]: Finished difference Result 73 states and 94 transitions. [2019-11-21 12:05:34,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:05:34,479 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-11-21 12:05:34,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:05:34,480 INFO L225 Difference]: With dead ends: 73 [2019-11-21 12:05:34,480 INFO L226 Difference]: Without dead ends: 71 [2019-11-21 12:05:34,481 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:05:34,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2019-11-21 12:05:34,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2019-11-21 12:05:34,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2019-11-21 12:05:34,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 92 transitions. [2019-11-21 12:05:34,489 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 92 transitions. Word has length 23 [2019-11-21 12:05:34,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:05:34,490 INFO L462 AbstractCegarLoop]: Abstraction has 71 states and 92 transitions. [2019-11-21 12:05:34,490 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:05:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 92 transitions. [2019-11-21 12:05:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 12:05:34,491 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:05:34,491 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:05:34,696 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:34,696 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:05:34,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:05:34,697 INFO L82 PathProgramCache]: Analyzing trace with hash -598155834, now seen corresponding path program 1 times [2019-11-21 12:05:34,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:05:34,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1884644798] [2019-11-21 12:05:34,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:05:34,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:05:34,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:05:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:05:34,946 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:05:34,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:05:34,980 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1884644798] [2019-11-21 12:05:34,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:05:34,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-11-21 12:05:34,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558776798] [2019-11-21 12:05:34,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-21 12:05:34,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:05:34,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-21 12:05:34,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-21 12:05:34,981 INFO L87 Difference]: Start difference. First operand 71 states and 92 transitions. Second operand 5 states. [2019-11-21 12:05:35,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:05:35,043 INFO L93 Difference]: Finished difference Result 116 states and 146 transitions. [2019-11-21 12:05:35,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:05:35,044 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2019-11-21 12:05:35,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:05:35,045 INFO L225 Difference]: With dead ends: 116 [2019-11-21 12:05:35,045 INFO L226 Difference]: Without dead ends: 116 [2019-11-21 12:05:35,045 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:05:35,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-11-21 12:05:35,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 77. [2019-11-21 12:05:35,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2019-11-21 12:05:35,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 98 transitions. [2019-11-21 12:05:35,053 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 98 transitions. Word has length 25 [2019-11-21 12:05:35,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:05:35,053 INFO L462 AbstractCegarLoop]: Abstraction has 77 states and 98 transitions. [2019-11-21 12:05:35,053 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-21 12:05:35,054 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 98 transitions. [2019-11-21 12:05:35,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-11-21 12:05:35,054 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:05:35,055 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:05:35,257 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:35,258 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:05:35,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:05:35,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1144654501, now seen corresponding path program 1 times [2019-11-21 12:05:35,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:05:35,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1740157065] [2019-11-21 12:05:35,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:05:35,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-21 12:05:35,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:05:35,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 12:05:35,548 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:05:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-21 12:05:35,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1740157065] [2019-11-21 12:05:35,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:05:35,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-21 12:05:35,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157243468] [2019-11-21 12:05:35,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:05:35,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:05:35,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:05:35,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:05:35,585 INFO L87 Difference]: Start difference. First operand 77 states and 98 transitions. Second operand 6 states. [2019-11-21 12:05:35,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:05:35,655 INFO L93 Difference]: Finished difference Result 75 states and 88 transitions. [2019-11-21 12:05:35,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-21 12:05:35,657 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-11-21 12:05:35,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:05:35,658 INFO L225 Difference]: With dead ends: 75 [2019-11-21 12:05:35,658 INFO L226 Difference]: Without dead ends: 75 [2019-11-21 12:05:35,659 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:05:35,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2019-11-21 12:05:35,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 69. [2019-11-21 12:05:35,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2019-11-21 12:05:35,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 82 transitions. [2019-11-21 12:05:35,665 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 82 transitions. Word has length 25 [2019-11-21 12:05:35,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:05:35,665 INFO L462 AbstractCegarLoop]: Abstraction has 69 states and 82 transitions. [2019-11-21 12:05:35,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:05:35,666 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 82 transitions. [2019-11-21 12:05:35,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 12:05:35,667 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:05:35,667 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:05:35,870 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:35,872 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:05:35,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:05:35,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1124550030, now seen corresponding path program 1 times [2019-11-21 12:05:35,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:05:35,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [228007585] [2019-11-21 12:05:35,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:05:36,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-21 12:05:36,156 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:05:36,217 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:05:36,217 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:05:36,329 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:05:36,330 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [228007585] [2019-11-21 12:05:36,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-21 12:05:36,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2019-11-21 12:05:36,330 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82963387] [2019-11-21 12:05:36,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 12:05:36,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:05:36,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 12:05:36,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:05:36,331 INFO L87 Difference]: Start difference. First operand 69 states and 82 transitions. Second operand 9 states. [2019-11-21 12:05:36,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:05:36,681 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2019-11-21 12:05:36,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-21 12:05:36,683 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2019-11-21 12:05:36,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:05:36,684 INFO L225 Difference]: With dead ends: 68 [2019-11-21 12:05:36,684 INFO L226 Difference]: Without dead ends: 68 [2019-11-21 12:05:36,685 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:05:36,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2019-11-21 12:05:36,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2019-11-21 12:05:36,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-11-21 12:05:36,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2019-11-21 12:05:36,703 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 26 [2019-11-21 12:05:36,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:05:36,704 INFO L462 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2019-11-21 12:05:36,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 12:05:36,706 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2019-11-21 12:05:36,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-21 12:05:36,711 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:05:36,711 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:05:36,912 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:36,913 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr0REQUIRES_VIOLATION, entry_pointErr7ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr6ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1REQUIRES_VIOLATION, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr9ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr3REQUIRES_VIOLATION, entry_pointErr2REQUIRES_VIOLATION, entry_pointErr8ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:05:36,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:05:36,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1014150018, now seen corresponding path program 1 times [2019-11-21 12:05:36,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:05:36,914 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1569034681] [2019-11-21 12:05:36,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:37,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:05:37,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-21 12:05:37,246 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:05:37,271 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:05:37,271 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 37 [2019-11-21 12:05:37,272 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:05:37,293 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 12:05:37,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:05:37,294 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:05:37,295 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 12:05:37,295 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:05:37,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:05:37,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:05:37,316 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:05:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-21 12:05:43,473 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:05:47,809 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:05:47,811 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Alternating quantifiers not yet supported at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:253) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.eliminateOne(ElimStorePlain.java:553) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:466) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:216) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:306) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:102) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:246) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:419) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:291) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:334) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:177) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:463) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:333) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:171) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 12:05:47,817 INFO L168 Benchmark]: Toolchain (without parser) took 235778.50 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 286.3 MB). Free memory was 952.3 MB in the beginning and 1.2 GB in the end (delta: -221.7 MB). Peak memory consumption was 64.5 MB. Max. memory is 11.5 GB. [2019-11-21 12:05:47,817 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:05:47,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 872.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -99.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-21 12:05:47,818 INFO L168 Benchmark]: Boogie Preprocessor took 110.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-21 12:05:47,819 INFO L168 Benchmark]: RCFGBuilder took 1600.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 937.8 MB in the end (delta: 107.5 MB). Peak memory consumption was 107.5 MB. Max. memory is 11.5 GB. [2019-11-21 12:05:47,820 INFO L168 Benchmark]: TraceAbstraction took 233190.84 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 187.7 MB). Free memory was 937.8 MB in the beginning and 1.2 GB in the end (delta: -236.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:05:47,822 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 872.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.6 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -99.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 110.37 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1600.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 937.8 MB in the end (delta: 107.5 MB). Peak memory consumption was 107.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 233190.84 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 187.7 MB). Free memory was 937.8 MB in the beginning and 1.2 GB in the end (delta: -236.3 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...