./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 264dba86 Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36d1a8e991d0ba1b082944dbede48ef8c84f35de --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 12:51:02,699 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-21 12:51:02,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-21 12:51:02,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-21 12:51:02,721 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-21 12:51:02,723 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-21 12:51:02,725 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-21 12:51:02,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-21 12:51:02,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-21 12:51:02,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-21 12:51:02,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-21 12:51:02,745 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-21 12:51:02,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-21 12:51:02,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-21 12:51:02,751 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-21 12:51:02,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-21 12:51:02,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-21 12:51:02,757 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-21 12:51:02,760 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-21 12:51:02,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-21 12:51:02,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-21 12:51:02,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-21 12:51:02,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-21 12:51:02,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-21 12:51:02,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-21 12:51:02,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-21 12:51:02,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-21 12:51:02,784 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-21 12:51:02,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-21 12:51:02,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-21 12:51:02,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-21 12:51:02,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-21 12:51:02,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-21 12:51:02,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-21 12:51:02,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-21 12:51:02,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-21 12:51:02,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-21 12:51:02,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-21 12:51:02,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-21 12:51:02,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-21 12:51:02,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-21 12:51:02,799 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-21 12:51:02,838 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-21 12:51:02,839 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-21 12:51:02,840 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-21 12:51:02,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-21 12:51:02,842 INFO L138 SettingsManager]: * Use SBE=true [2019-11-21 12:51:02,842 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-21 12:51:02,845 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-21 12:51:02,845 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-21 12:51:02,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-21 12:51:02,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-21 12:51:02,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-21 12:51:02,846 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-21 12:51:02,846 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-21 12:51:02,847 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-21 12:51:02,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-21 12:51:02,849 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-21 12:51:02,850 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-21 12:51:02,850 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-21 12:51:02,850 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-21 12:51:02,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-21 12:51:02,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-21 12:51:02,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-21 12:51:02,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-21 12:51:02,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-21 12:51:02,854 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-21 12:51:02,854 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-21 12:51:02,855 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-21 12:51:02,855 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-21 12:51:02,855 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-21 12:51:02,855 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36d1a8e991d0ba1b082944dbede48ef8c84f35de Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-21 12:51:03,155 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-21 12:51:03,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-21 12:51:03,172 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-21 12:51:03,174 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-21 12:51:03,174 INFO L275 PluginConnector]: CDTParser initialized [2019-11-21 12:51:03,175 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2019-11-21 12:51:03,233 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99256ec0e/4d92e26e8c014bb49c7d0f910b41c2ac/FLAGb99f7fd59 [2019-11-21 12:51:03,796 INFO L306 CDTParser]: Found 1 translation units. [2019-11-21 12:51:03,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test19-2.i [2019-11-21 12:51:03,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99256ec0e/4d92e26e8c014bb49c7d0f910b41c2ac/FLAGb99f7fd59 [2019-11-21 12:51:04,089 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99256ec0e/4d92e26e8c014bb49c7d0f910b41c2ac [2019-11-21 12:51:04,094 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-21 12:51:04,097 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-21 12:51:04,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-21 12:51:04,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-21 12:51:04,103 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-21 12:51:04,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:51:04" (1/1) ... [2019-11-21 12:51:04,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68275591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:04, skipping insertion in model container [2019-11-21 12:51:04,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:51:04" (1/1) ... [2019-11-21 12:51:04,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-21 12:51:04,188 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:51:04,643 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 12:51:04,643 INFO L969 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [577] [2019-11-21 12:51:04,644 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:51:04,656 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 12:51:04,656 INFO L969 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [608] [2019-11-21 12:51:04,656 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:51:04,659 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 12:51:04,659 INFO L969 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [608] [2019-11-21 12:51:04,660 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:51:04,662 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 12:51:04,662 INFO L969 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [608] [2019-11-21 12:51:04,663 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:51:04,686 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 12:51:04,687 INFO L969 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [707] [2019-11-21 12:51:04,687 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:51:04,698 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 12:51:04,698 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [763] [2019-11-21 12:51:04,699 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:51:04,703 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 12:51:04,704 INFO L969 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [776] [2019-11-21 12:51:04,704 INFO L970 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-21 12:51:04,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:51:04,746 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-21 12:51:04,758 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-21 12:51:04,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:51:04,874 INFO L201 MainTranslator]: Completed pre-run [2019-11-21 12:51:04,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-21 12:51:05,052 INFO L205 MainTranslator]: Completed translation [2019-11-21 12:51:05,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:05 WrapperNode [2019-11-21 12:51:05,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-21 12:51:05,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-21 12:51:05,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-21 12:51:05,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-21 12:51:05,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:05" (1/1) ... [2019-11-21 12:51:05,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:05" (1/1) ... [2019-11-21 12:51:05,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:05" (1/1) ... [2019-11-21 12:51:05,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:05" (1/1) ... [2019-11-21 12:51:05,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:05" (1/1) ... [2019-11-21 12:51:05,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:05" (1/1) ... [2019-11-21 12:51:05,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:05" (1/1) ... [2019-11-21 12:51:05,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-21 12:51:05,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-21 12:51:05,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-21 12:51:05,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-21 12:51:05,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:05" (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 12:51:05,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-21 12:51:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-21 12:51:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:51:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-21 12:51:05,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-21 12:51:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-21 12:51:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-21 12:51:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-21 12:51:05,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-21 12:51:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-21 12:51:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-21 12:51:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-21 12:51:05,288 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:51:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-21 12:51:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-21 12:51:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-21 12:51:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-21 12:51:05,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-21 12:51:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-21 12:51:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-21 12:51:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-21 12:51:05,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-21 12:51:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-21 12:51:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-21 12:51:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-21 12:51:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-21 12:51:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-21 12:51:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-21 12:51:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-21 12:51:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-21 12:51:05,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-21 12:51:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-21 12:51:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-21 12:51:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-21 12:51:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-21 12:51:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-21 12:51:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-21 12:51:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-21 12:51:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-21 12:51:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-21 12:51:05,294 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-21 12:51:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure f19 [2019-11-21 12:51:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure f19_undo [2019-11-21 12:51:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure g19 [2019-11-21 12:51:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure probe_unsafe_19 [2019-11-21 12:51:05,295 INFO L138 BoogieDeclarations]: Found implementation of procedure disconnect_19 [2019-11-21 12:51:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-21 12:51:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-21 12:51:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-21 12:51:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-21 12:51:05,297 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-21 12:51:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-21 12:51:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-21 12:51:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-21 12:51:05,297 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-21 12:51:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-21 12:51:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-21 12:51:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-21 12:51:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-21 12:51:05,298 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-21 12:51:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-21 12:51:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-21 12:51:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-21 12:51:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-21 12:51:05,299 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-21 12:51:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-21 12:51:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-21 12:51:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-21 12:51:05,300 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-21 12:51:05,301 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-21 12:51:05,301 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-21 12:51:05,301 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-21 12:51:05,301 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-21 12:51:05,301 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-21 12:51:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-21 12:51:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-21 12:51:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-21 12:51:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-21 12:51:05,302 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-21 12:51:05,303 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-21 12:51:05,303 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-21 12:51:05,303 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-21 12:51:05,303 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-21 12:51:05,303 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-21 12:51:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-21 12:51:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-21 12:51:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-21 12:51:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-21 12:51:05,304 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-21 12:51:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-21 12:51:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-21 12:51:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-21 12:51:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-21 12:51:05,305 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-21 12:51:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-21 12:51:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-21 12:51:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-21 12:51:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-21 12:51:05,306 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-21 12:51:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-21 12:51:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-21 12:51:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-21 12:51:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-21 12:51:05,307 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-21 12:51:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-21 12:51:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-21 12:51:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-21 12:51:05,308 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-21 12:51:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-21 12:51:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-21 12:51:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-21 12:51:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-21 12:51:05,309 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-21 12:51:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-21 12:51:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-21 12:51:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-21 12:51:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-21 12:51:05,310 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-21 12:51:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-21 12:51:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-21 12:51:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-21 12:51:05,311 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-21 12:51:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-21 12:51:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-21 12:51:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-21 12:51:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-21 12:51:05,312 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-21 12:51:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-21 12:51:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-21 12:51:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-21 12:51:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-21 12:51:05,313 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-21 12:51:05,314 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-21 12:51:05,314 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-21 12:51:05,314 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-21 12:51:05,314 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-21 12:51:05,314 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-21 12:51:05,314 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-21 12:51:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-21 12:51:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-21 12:51:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-21 12:51:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-21 12:51:05,315 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-21 12:51:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-21 12:51:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-21 12:51:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-21 12:51:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-21 12:51:05,316 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-21 12:51:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-21 12:51:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-21 12:51:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-21 12:51:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-21 12:51:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-21 12:51:05,317 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-21 12:51:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-21 12:51:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-21 12:51:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-21 12:51:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-21 12:51:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-21 12:51:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-21 12:51:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-21 12:51:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-21 12:51:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-21 12:51:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-21 12:51:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-21 12:51:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-21 12:51:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-21 12:51:05,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-21 12:51:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-21 12:51:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-21 12:51:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-21 12:51:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-21 12:51:05,321 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-21 12:51:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-21 12:51:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-21 12:51:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-21 12:51:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-21 12:51:05,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-21 12:51:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-21 12:51:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-21 12:51:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-21 12:51:05,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-21 12:51:05,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-21 12:51:05,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-21 12:51:05,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-21 12:51:05,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-21 12:51:05,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-21 12:51:05,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-21 12:51:05,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-21 12:51:05,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-21 12:51:05,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-21 12:51:05,326 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-21 12:51:05,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-21 12:51:05,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-21 12:51:05,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-21 12:51:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-21 12:51:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-21 12:51:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-21 12:51:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-21 12:51:05,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-21 12:51:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-21 12:51:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-21 12:51:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-21 12:51:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-21 12:51:05,328 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-21 12:51:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-21 12:51:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure f19 [2019-11-21 12:51:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure f19_undo [2019-11-21 12:51:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure g19 [2019-11-21 12:51:05,329 INFO L130 BoogieDeclarations]: Found specification of procedure probe_unsafe_19 [2019-11-21 12:51:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure disconnect_19 [2019-11-21 12:51:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-21 12:51:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-21 12:51:05,330 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-21 12:51:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-21 12:51:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-21 12:51:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-21 12:51:05,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-21 12:51:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-21 12:51:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-21 12:51:05,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-21 12:51:06,208 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:51:06,671 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-21 12:51:07,074 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-21 12:51:07,074 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-21 12:51:07,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:51:07 BoogieIcfgContainer [2019-11-21 12:51:07,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-21 12:51:07,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-21 12:51:07,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-21 12:51:07,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-21 12:51:07,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:51:04" (1/3) ... [2019-11-21 12:51:07,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d44e80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:51:07, skipping insertion in model container [2019-11-21 12:51:07,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:51:05" (2/3) ... [2019-11-21 12:51:07,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d44e80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:51:07, skipping insertion in model container [2019-11-21 12:51:07,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:51:07" (3/3) ... [2019-11-21 12:51:07,093 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test19-2.i [2019-11-21 12:51:07,103 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-21 12:51:07,113 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 94 error locations. [2019-11-21 12:51:07,125 INFO L249 AbstractCegarLoop]: Starting to check reachability of 94 error locations. [2019-11-21 12:51:07,152 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-21 12:51:07,153 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-21 12:51:07,153 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-21 12:51:07,153 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-21 12:51:07,153 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-21 12:51:07,153 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-21 12:51:07,153 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-21 12:51:07,154 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-21 12:51:07,195 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states. [2019-11-21 12:51:07,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-21 12:51:07,211 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:51:07,212 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:51:07,213 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, 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, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, 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, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, 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, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:51:07,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:51:07,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1880604432, now seen corresponding path program 1 times [2019-11-21 12:51:07,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:51:07,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [430458071] [2019-11-21 12:51:07,236 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 12:51:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:51:07,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-21 12:51:07,607 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:51:07,687 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 12:51:07,689 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:51:07,699 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:51:07,700 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:51:07,700 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:51:07,779 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 12:51:07,779 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:51:07,859 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 12:51:07,860 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [430458071] [2019-11-21 12:51:07,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:51:07,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2019-11-21 12:51:07,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623181503] [2019-11-21 12:51:07,878 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-21 12:51:07,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:51:07,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-21 12:51:07,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-11-21 12:51:07,903 INFO L87 Difference]: Start difference. First operand 161 states. Second operand 7 states. [2019-11-21 12:51:08,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:51:08,543 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2019-11-21 12:51:08,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-21 12:51:08,545 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-11-21 12:51:08,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:51:08,578 INFO L225 Difference]: With dead ends: 140 [2019-11-21 12:51:08,581 INFO L226 Difference]: Without dead ends: 137 [2019-11-21 12:51:08,583 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-11-21 12:51:08,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2019-11-21 12:51:08,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 96. [2019-11-21 12:51:08,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2019-11-21 12:51:08,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2019-11-21 12:51:08,665 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 15 [2019-11-21 12:51:08,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:51:08,667 INFO L462 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2019-11-21 12:51:08,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-21 12:51:08,667 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2019-11-21 12:51:08,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-21 12:51:08,670 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:51:08,670 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:51:08,875 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:51:08,877 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, 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, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, 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, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, 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, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:51:08,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:51:08,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1880604433, now seen corresponding path program 1 times [2019-11-21 12:51:08,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:51:08,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1669128343] [2019-11-21 12:51:08,879 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 12:51:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:51:09,160 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-21 12:51:09,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:51:09,172 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 12:51:09,172 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:51:09,184 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:51:09,185 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:51:09,185 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-11-21 12:51:09,255 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 12:51:09,255 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:51:09,370 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:51:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:51:09,569 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1669128343] [2019-11-21 12:51:09,569 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:51:09,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-21 12:51:09,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507358822] [2019-11-21 12:51:09,571 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 12:51:09,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:51:09,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 12:51:09,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-21 12:51:09,571 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 10 states. [2019-11-21 12:51:10,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:51:10,822 INFO L93 Difference]: Finished difference Result 135 states and 159 transitions. [2019-11-21 12:51:10,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 12:51:10,823 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 15 [2019-11-21 12:51:10,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:51:10,825 INFO L225 Difference]: With dead ends: 135 [2019-11-21 12:51:10,825 INFO L226 Difference]: Without dead ends: 135 [2019-11-21 12:51:10,826 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2019-11-21 12:51:10,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-11-21 12:51:10,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 110. [2019-11-21 12:51:10,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-11-21 12:51:10,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 134 transitions. [2019-11-21 12:51:10,840 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 134 transitions. Word has length 15 [2019-11-21 12:51:10,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:51:10,840 INFO L462 AbstractCegarLoop]: Abstraction has 110 states and 134 transitions. [2019-11-21 12:51:10,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 12:51:10,840 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 134 transitions. [2019-11-21 12:51:10,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-21 12:51:10,841 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:51:10,841 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:51:11,044 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:51:11,045 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, 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, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, 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, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, 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, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:51:11,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:51:11,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1880574642, now seen corresponding path program 1 times [2019-11-21 12:51:11,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:51:11,047 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [736443052] [2019-11-21 12:51:11,047 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 12:51:11,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:51:11,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-21 12:51:11,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:51:11,336 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 12:51:11,336 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:51:11,351 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:51:11,356 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 12:51:11,356 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:51:11,366 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:51:11,367 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:51:11,367 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 12:51:13,532 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:51:13,534 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 12 treesize of output 14 [2019-11-21 12:51:13,534 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:51:13,549 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:51:13,569 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:51:13,570 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 13 treesize of output 17 [2019-11-21 12:51:13,571 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:51:13,585 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:51:13,586 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 12:51:13,587 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:9 [2019-11-21 12:51:13,619 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 12:51:13,619 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:51:13,730 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:51:15,863 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:51:15,864 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:51:15,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:51:15,867 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:51:15,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:51:15,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:51:15,872 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:51:15,874 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:51:19,026 WARN L192 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2019-11-21 12:51:19,035 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:51:23,709 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 12:51:23,710 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [736443052] [2019-11-21 12:51:23,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:51:23,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2019-11-21 12:51:23,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761184052] [2019-11-21 12:51:23,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-21 12:51:23,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:51:23,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-21 12:51:23,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=145, Unknown=5, NotChecked=0, Total=182 [2019-11-21 12:51:23,713 INFO L87 Difference]: Start difference. First operand 110 states and 134 transitions. Second operand 14 states. [2019-11-21 12:51:36,401 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv8 32) (select |c_#length| |c_entry_point_~#a19~0.base|)) (exists ((v_prenex_1 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (= (_ bv1 1) (select |c_#valid| |c_entry_point_~#a19~0.base|)) (forall ((v_probe_unsafe_19_~a.base_BEFORE_CALL_6 (_ BitVec 32)) (v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse0 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv4 32))) (.cse1 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (exists ((v_ldv_malloc_~size_13 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_4| (_ BitVec 32))) (and (not (bvsle (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_4| v_ldv_malloc_~size_13) v_probe_unsafe_19_~a.base_BEFORE_CALL_6))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_4|) (_ bv0 1)))) (bvsle .cse1 (select |c_#length| v_probe_unsafe_19_~a.base_BEFORE_CALL_6)) (not (bvsle .cse0 .cse1))))) (forall ((v_probe_unsafe_19_~a.base_BEFORE_CALL_6 (_ BitVec 32)) (ldv_malloc_~size (_ BitVec 32)) (v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_5| (_ BitVec 32))) (let ((.cse2 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv4 32))) (.cse3 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)))) (or (not (= (select |c_#valid| |v_ldv_malloc_#t~malloc12.base_5|) (_ bv0 1))) (not (bvsle (_ bv0 32) .cse2)) (exists ((v_ldv_malloc_~size_13 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_4| (_ BitVec 32))) (and (not (bvsle (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_4| v_ldv_malloc_~size_13) v_probe_unsafe_19_~a.base_BEFORE_CALL_6))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_4|) (_ bv0 1)))) (bvsle .cse3 (select (store |c_#length| |v_ldv_malloc_#t~malloc12.base_5| ldv_malloc_~size) v_probe_unsafe_19_~a.base_BEFORE_CALL_6)) (not (bvsle .cse2 .cse3))))) (= (_ bv0 32) |c_entry_point_~#a19~0.offset|)) is different from false [2019-11-21 12:52:23,192 WARN L192 SmtUtils]: Spent 28.29 s on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-11-21 12:52:35,321 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_prenex_1 (_ BitVec 32))) (= (_ bv0 1) (select |c_old(#valid)| v_prenex_1))) (exists ((ldv_malloc_~size (_ BitVec 32)) (|ldv_malloc_#t~malloc12.base| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_old(#valid)| |ldv_malloc_#t~malloc12.base|)) (= (store |c_old(#length)| |ldv_malloc_#t~malloc12.base| ldv_malloc_~size) |c_#length|))) (forall ((v_probe_unsafe_19_~a.base_BEFORE_CALL_6 (_ BitVec 32)) (v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ BitVec 32))) (let ((.cse0 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv4 32))) (.cse1 (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)))) (or (not (bvsle (_ bv0 32) .cse0)) (exists ((v_ldv_malloc_~size_13 (_ BitVec 32)) (|v_ldv_malloc_#t~malloc12.base_4| (_ BitVec 32))) (and (not (bvsle (bvadd v_probe_unsafe_19_~a.offset_BEFORE_CALL_4 (_ bv8 32)) (select (store |c_old(#length)| |v_ldv_malloc_#t~malloc12.base_4| v_ldv_malloc_~size_13) v_probe_unsafe_19_~a.base_BEFORE_CALL_6))) (= (select |c_old(#valid)| |v_ldv_malloc_#t~malloc12.base_4|) (_ bv0 1)))) (bvsle .cse1 (select |c_#length| v_probe_unsafe_19_~a.base_BEFORE_CALL_6)) (not (bvsle .cse0 .cse1)))))) is different from false [2019-11-21 12:53:14,360 WARN L192 SmtUtils]: Spent 18.21 s on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-11-21 12:54:14,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:54:14,643 INFO L93 Difference]: Finished difference Result 141 states and 163 transitions. [2019-11-21 12:54:14,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-21 12:54:14,644 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2019-11-21 12:54:14,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:54:14,647 INFO L225 Difference]: With dead ends: 141 [2019-11-21 12:54:14,647 INFO L226 Difference]: Without dead ends: 141 [2019-11-21 12:54:14,648 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 87.4s TimeCoverageRelationStatistics Valid=62, Invalid=237, Unknown=15, NotChecked=66, Total=380 [2019-11-21 12:54:14,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-11-21 12:54:14,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 107. [2019-11-21 12:54:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-11-21 12:54:14,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 130 transitions. [2019-11-21 12:54:14,660 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 130 transitions. Word has length 15 [2019-11-21 12:54:14,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:54:14,661 INFO L462 AbstractCegarLoop]: Abstraction has 107 states and 130 transitions. [2019-11-21 12:54:14,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-21 12:54:14,661 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 130 transitions. [2019-11-21 12:54:14,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 12:54:14,663 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:54:14,663 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, 1] [2019-11-21 12:54:14,871 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:54:14,873 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, 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, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, 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, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, 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, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:54:14,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:54:14,874 INFO L82 PathProgramCache]: Analyzing trace with hash 250713103, now seen corresponding path program 1 times [2019-11-21 12:54:14,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:54:14,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [158440194] [2019-11-21 12:54:14,875 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 12:54:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:54:15,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-21 12:54:15,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:54:15,174 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 12:54:15,174 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:15,190 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:15,191 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:54:15,191 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-21 12:54:15,304 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 12:54:15,304 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:54:15,394 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 12:54:15,395 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [158440194] [2019-11-21 12:54:15,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:54:15,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 5] imperfect sequences [] total 8 [2019-11-21 12:54:15,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449733321] [2019-11-21 12:54:15,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-21 12:54:15,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:54:15,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-21 12:54:15,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-21 12:54:15,397 INFO L87 Difference]: Start difference. First operand 107 states and 130 transitions. Second operand 9 states. [2019-11-21 12:54:16,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:54:16,150 INFO L93 Difference]: Finished difference Result 135 states and 160 transitions. [2019-11-21 12:54:16,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 12:54:16,151 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2019-11-21 12:54:16,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:54:16,154 INFO L225 Difference]: With dead ends: 135 [2019-11-21 12:54:16,154 INFO L226 Difference]: Without dead ends: 135 [2019-11-21 12:54:16,155 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2019-11-21 12:54:16,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-11-21 12:54:16,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2019-11-21 12:54:16,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-11-21 12:54:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 126 transitions. [2019-11-21 12:54:16,218 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 126 transitions. Word has length 26 [2019-11-21 12:54:16,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:54:16,221 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 126 transitions. [2019-11-21 12:54:16,222 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-21 12:54:16,222 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 126 transitions. [2019-11-21 12:54:16,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 12:54:16,226 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:54:16,226 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 12:54:16,437 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:54:16,438 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, 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, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, 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, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, 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, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:54:16,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:54:16,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1256838705, now seen corresponding path program 1 times [2019-11-21 12:54:16,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:54:16,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [296833611] [2019-11-21 12:54:16,439 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 12:54:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:54:16,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 15 conjunts are in the unsatisfiable core [2019-11-21 12:54:16,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:54:16,870 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 12:54:16,870 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:54:16,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:54:17,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:54:17,218 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 16 treesize of output 12 [2019-11-21 12:54:17,219 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:54:17,232 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 12 treesize of output 10 [2019-11-21 12:54:17,233 INFO L496 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:54:17,247 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 14 treesize of output 12 [2019-11-21 12:54:17,248 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-21 12:54:17,287 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:17,288 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2019-11-21 12:54:17,288 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:43, output treesize:35 [2019-11-21 12:54:17,696 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 12:54:17,697 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [296833611] [2019-11-21 12:54:17,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:54:17,697 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2019-11-21 12:54:17,697 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060313831] [2019-11-21 12:54:17,698 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-11-21 12:54:17,698 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:54:17,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-11-21 12:54:17,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2019-11-21 12:54:17,699 INFO L87 Difference]: Start difference. First operand 105 states and 126 transitions. Second operand 16 states. [2019-11-21 12:54:19,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:54:19,426 INFO L93 Difference]: Finished difference Result 124 states and 146 transitions. [2019-11-21 12:54:19,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-21 12:54:19,427 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 26 [2019-11-21 12:54:19,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:54:19,428 INFO L225 Difference]: With dead ends: 124 [2019-11-21 12:54:19,428 INFO L226 Difference]: Without dead ends: 124 [2019-11-21 12:54:19,429 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2019-11-21 12:54:19,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-11-21 12:54:19,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 104. [2019-11-21 12:54:19,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2019-11-21 12:54:19,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 123 transitions. [2019-11-21 12:54:19,441 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 123 transitions. Word has length 26 [2019-11-21 12:54:19,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:54:19,441 INFO L462 AbstractCegarLoop]: Abstraction has 104 states and 123 transitions. [2019-11-21 12:54:19,442 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-11-21 12:54:19,442 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 123 transitions. [2019-11-21 12:54:19,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 12:54:19,443 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:54:19,443 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 12:54:19,645 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:54:19,646 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, 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, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, 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, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, 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, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:54:19,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:54:19,647 INFO L82 PathProgramCache]: Analyzing trace with hash 250683313, now seen corresponding path program 2 times [2019-11-21 12:54:19,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:54:19,648 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1385194083] [2019-11-21 12:54:19,649 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 Starting monitored process 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 12:54:19,940 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-21 12:54:19,940 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-21 12:54:19,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-21 12:54:19,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:54:19,995 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-11-21 12:54:19,995 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:20,006 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:20,011 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-11-21 12:54:20,011 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:20,021 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:20,022 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:54:20,022 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:19 [2019-11-21 12:54:20,058 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 7 [2019-11-21 12:54:20,058 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:20,069 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:20,072 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 7 [2019-11-21 12:54:20,073 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:20,078 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:20,078 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:54:20,079 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:37, output treesize:7 [2019-11-21 12:54:20,093 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 12:54:20,093 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:54:20,130 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 12:54:20,130 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1385194083] [2019-11-21 12:54:20,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 12:54:20,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2019-11-21 12:54:20,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768497710] [2019-11-21 12:54:20,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-21 12:54:20,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:54:20,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-21 12:54:20,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-21 12:54:20,132 INFO L87 Difference]: Start difference. First operand 104 states and 123 transitions. Second operand 6 states. [2019-11-21 12:54:20,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:54:20,297 INFO L93 Difference]: Finished difference Result 103 states and 117 transitions. [2019-11-21 12:54:20,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-21 12:54:20,298 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2019-11-21 12:54:20,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:54:20,299 INFO L225 Difference]: With dead ends: 103 [2019-11-21 12:54:20,300 INFO L226 Difference]: Without dead ends: 103 [2019-11-21 12:54:20,300 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-11-21 12:54:20,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2019-11-21 12:54:20,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 100. [2019-11-21 12:54:20,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-11-21 12:54:20,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2019-11-21 12:54:20,308 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 26 [2019-11-21 12:54:20,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:54:20,308 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2019-11-21 12:54:20,308 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-21 12:54:20,309 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2019-11-21 12:54:20,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 12:54:20,310 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:54:20,310 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, 1] [2019-11-21 12:54:20,516 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:54:20,516 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, 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, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, 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, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, 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, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:54:20,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:54:20,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1256868496, now seen corresponding path program 1 times [2019-11-21 12:54:20,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:54:20,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [225259756] [2019-11-21 12:54:20,519 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 12:54:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:54:20,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 33 conjunts are in the unsatisfiable core [2019-11-21 12:54:20,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:54:20,857 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 12:54:20,857 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:20,868 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:20,872 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 12:54:20,873 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:20,881 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:20,882 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-21 12:54:20,882 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2019-11-21 12:54:23,001 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:23,002 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 13 treesize of output 17 [2019-11-21 12:54:23,002 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:23,023 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:23,027 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 12 treesize of output 14 [2019-11-21 12:54:23,028 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:23,043 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:23,044 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 12:54:23,045 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:9 [2019-11-21 12:54:23,159 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-11-21 12:54:23,161 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 12:54:23,162 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:23,176 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:23,190 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:23,190 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 13 treesize of output 17 [2019-11-21 12:54:23,191 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:23,205 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:23,206 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 12:54:23,206 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:11 [2019-11-21 12:54:23,234 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 12:54:23,235 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:54:23,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:54:25,526 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:54:25,527 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:25,527 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:25,529 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:25,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:25,531 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:25,532 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:25,534 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:25,534 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:28,839 WARN L192 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2019-11-21 12:54:28,843 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:33,988 WARN L192 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-11-21 12:54:36,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:54:36,534 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:36,535 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 18 treesize of output 22 [2019-11-21 12:54:36,535 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:36,561 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:36,562 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 23 treesize of output 27 [2019-11-21 12:54:36,562 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:36,580 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:36,580 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 16 treesize of output 20 [2019-11-21 12:54:36,581 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-11-21 12:54:36,621 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:54:36,622 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2019-11-21 12:54:36,622 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 5 variables, input treesize:58, output treesize:23 [2019-11-21 12:54:36,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:54:39,107 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:39,107 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:39,108 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:54:39,109 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:54:39,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:39,112 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:54:39,113 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-11-21 12:54:39,118 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 16 [2019-11-21 12:54:39,123 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-11-21 12:54:51,820 WARN L192 SmtUtils]: Spent 6.04 s on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-11-21 12:54:51,827 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:54:58,657 WARN L192 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2019-11-21 12:55:03,176 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-21 12:55:03,176 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [225259756] [2019-11-21 12:55:03,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-21 12:55:03,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 21 [2019-11-21 12:55:03,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390456133] [2019-11-21 12:55:03,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-21 12:55:03,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:55:03,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-21 12:55:03,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=396, Unknown=11, NotChecked=0, Total=462 [2019-11-21 12:55:03,178 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 11 states. [2019-11-21 12:55:40,908 WARN L192 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 16 [2019-11-21 12:56:28,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:56:28,145 INFO L93 Difference]: Finished difference Result 123 states and 137 transitions. [2019-11-21 12:56:28,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-11-21 12:56:28,145 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2019-11-21 12:56:28,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:56:28,147 INFO L225 Difference]: With dead ends: 123 [2019-11-21 12:56:28,147 INFO L226 Difference]: Without dead ends: 123 [2019-11-21 12:56:28,147 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 63.5s TimeCoverageRelationStatistics Valid=137, Invalid=837, Unknown=18, NotChecked=0, Total=992 [2019-11-21 12:56:28,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-11-21 12:56:28,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 94. [2019-11-21 12:56:28,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-11-21 12:56:28,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 104 transitions. [2019-11-21 12:56:28,154 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 104 transitions. Word has length 26 [2019-11-21 12:56:28,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:56:28,154 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 104 transitions. [2019-11-21 12:56:28,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-21 12:56:28,154 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 104 transitions. [2019-11-21 12:56:28,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-21 12:56:28,155 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:56:28,155 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:56:28,358 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:56:28,359 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, 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, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, 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, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, 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, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:56:28,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:56:28,360 INFO L82 PathProgramCache]: Analyzing trace with hash -1996936919, now seen corresponding path program 1 times [2019-11-21 12:56:28,360 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:56:28,361 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [975284194] [2019-11-21 12:56:28,361 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 12:56:28,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:56:28,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-21 12:56:28,596 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:56:28,631 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 12:56:28,631 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:56:28,734 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 12:56:28,735 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [975284194] [2019-11-21 12:56:28,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-21 12:56:28,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-21 12:56:28,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985073874] [2019-11-21 12:56:28,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-21 12:56:28,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-21 12:56:28,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-21 12:56:28,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-21 12:56:28,736 INFO L87 Difference]: Start difference. First operand 94 states and 104 transitions. Second operand 10 states. [2019-11-21 12:56:28,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-21 12:56:28,832 INFO L93 Difference]: Finished difference Result 118 states and 128 transitions. [2019-11-21 12:56:28,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-21 12:56:28,832 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2019-11-21 12:56:28,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-21 12:56:28,833 INFO L225 Difference]: With dead ends: 118 [2019-11-21 12:56:28,833 INFO L226 Difference]: Without dead ends: 118 [2019-11-21 12:56:28,834 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-11-21 12:56:28,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-11-21 12:56:28,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 103. [2019-11-21 12:56:28,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2019-11-21 12:56:28,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2019-11-21 12:56:28,847 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 26 [2019-11-21 12:56:28,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-21 12:56:28,847 INFO L462 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2019-11-21 12:56:28,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-21 12:56:28,847 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2019-11-21 12:56:28,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-21 12:56:28,850 INFO L402 BasicCegarLoop]: Found error trace [2019-11-21 12:56:28,850 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-21 12:56:29,055 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:56:29,055 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, disconnect_19Err4ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err0REQUIRES_VIOLATION, disconnect_19Err1REQUIRES_VIOLATION, disconnect_19Err3ASSERT_VIOLATIONMEMORY_FREE, disconnect_19Err2ASSERT_VIOLATIONMEMORY_FREE, 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, probe_unsafe_19Err3REQUIRES_VIOLATION, probe_unsafe_19Err7ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err2REQUIRES_VIOLATION, probe_unsafe_19Err6ASSERT_VIOLATIONMEMORY_FREE, probe_unsafe_19Err4REQUIRES_VIOLATION, probe_unsafe_19Err0REQUIRES_VIOLATION, probe_unsafe_19Err5REQUIRES_VIOLATION, probe_unsafe_19Err1REQUIRES_VIOLATION, probe_unsafe_19Err8ASSERT_VIOLATIONMEMORY_FREE, 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, f19_undoErr3ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr2ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr0REQUIRES_VIOLATION, f19_undoErr4ASSERT_VIOLATIONMEMORY_FREE, f19_undoErr1REQUIRES_VIOLATION, 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, f19Err1REQUIRES_VIOLATION, f19Err0REQUIRES_VIOLATION, f19Err2REQUIRES_VIOLATION, f19Err3REQUIRES_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, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-21 12:56:29,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-21 12:56:29,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1774875126, now seen corresponding path program 1 times [2019-11-21 12:56:29,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-21 12:56:29,057 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1444840903] [2019-11-21 12:56:29,057 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 12:56:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-21 12:56:29,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-21 12:56:29,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-21 12:56:29,362 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-21 12:56:29,362 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 12:56:29,364 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-21 12:56:29,381 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-21 12:56:29,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:56:29,384 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 12:56:29,384 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-21 12:56:29,384 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:56:29,389 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:56:29,394 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:56:29,398 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-21 12:56:35,517 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 12:56:35,518 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-21 12:56:39,811 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-21 12:56:39,812 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-21 12:56:39,820 INFO L168 Benchmark]: Toolchain (without parser) took 335724.59 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 257.9 MB). Free memory was 946.9 MB in the beginning and 1.0 GB in the end (delta: -82.1 MB). Peak memory consumption was 175.9 MB. Max. memory is 11.5 GB. [2019-11-21 12:56:39,821 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-21 12:56:39,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 955.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -120.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-21 12:56:39,822 INFO L168 Benchmark]: Boogie Preprocessor took 171.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-11-21 12:56:39,823 INFO L168 Benchmark]: RCFGBuilder took 1849.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 939.6 MB in the end (delta: 121.3 MB). Peak memory consumption was 121.3 MB. Max. memory is 11.5 GB. [2019-11-21 12:56:39,823 INFO L168 Benchmark]: TraceAbstraction took 332741.24 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 143.7 MB). Free memory was 939.6 MB in the beginning and 1.0 GB in the end (delta: -89.4 MB). Peak memory consumption was 54.2 MB. Max. memory is 11.5 GB. [2019-11-21 12:56:39,826 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 955.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -120.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 171.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1849.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 939.6 MB in the end (delta: 121.3 MB). Peak memory consumption was 121.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 332741.24 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 143.7 MB). Free memory was 939.6 MB in the beginning and 1.0 GB in the end (delta: -89.4 MB). Peak memory consumption was 54.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...