./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b5699aa Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer --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 34250e9d8f469697cb8850c8aa9214fde887cb00 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-25 08:51:57,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:57,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:57,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:57,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:57,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:57,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:57,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:57,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:57,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:57,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:57,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:57,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:57,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:57,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:57,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:57,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:57,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:57,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:57,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:57,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:57,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:57,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:57,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:57,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:57,862 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:57,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:57,863 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:57,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:57,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:57,865 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:57,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:57,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:57,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:57,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:57,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:57,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:57,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:57,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:57,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:57,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:57,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-25 08:51:57,884 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:57,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:57,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:57,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:57,886 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:57,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:57,886 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:51:57,886 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:51:57,886 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:57,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:51:57,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:57,887 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-25 08:51:57,887 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-25 08:51:57,888 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-25 08:51:57,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:51:57,888 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:51:57,888 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:51:57,888 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:57,889 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:51:57,889 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:57,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:57,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:57,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:51:57,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:51:57,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:51:57,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:57,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:51:57,891 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:51:57,891 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:51:57,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:51:57,891 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer 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 -> 34250e9d8f469697cb8850c8aa9214fde887cb00 [2019-11-25 08:51:58,051 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:58,060 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:58,063 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:58,064 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:58,065 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:58,065 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2019-11-25 08:51:58,122 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/data/367e393d0/a8aa43559fc746ca8b38c7cab2e0cd23/FLAG3360d910b [2019-11-25 08:51:58,556 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:58,557 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/sv-benchmarks/c/ldv-memsafety/memleaks_test3-2.i [2019-11-25 08:51:58,575 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/data/367e393d0/a8aa43559fc746ca8b38c7cab2e0cd23/FLAG3360d910b [2019-11-25 08:51:58,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/data/367e393d0/a8aa43559fc746ca8b38c7cab2e0cd23 [2019-11-25 08:51:58,928 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:58,929 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-25 08:51:58,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:58,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:58,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:58,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4412f812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58, skipping insertion in model container [2019-11-25 08:51:58,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:59,007 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:59,409 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-25 08:51:59,409 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [576] [2019-11-25 08:51:59,410 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:59,423 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-25 08:51:59,423 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [607] [2019-11-25 08:51:59,424 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:59,427 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-25 08:51:59,428 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [607] [2019-11-25 08:51:59,428 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:59,432 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-25 08:51:59,433 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [607] [2019-11-25 08:51:59,433 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:59,474 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-25 08:51:59,475 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [706] [2019-11-25 08:51:59,475 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:59,491 INFO L965 CHandler]: Found a cast between two array/pointer types where the value type is smaller than the cast-to type, and where that value type is smaller than our current memory model resolution [2019-11-25 08:51:59,491 INFO L968 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [758] [2019-11-25 08:51:59,491 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:51:59,496 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:59,522 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-25 08:51:59,537 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:59,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:59,595 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:59,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:59,746 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:59,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59 WrapperNode [2019-11-25 08:51:59,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:59,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:59,747 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:59,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:59,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... [2019-11-25 08:51:59,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:59,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:59,865 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:59,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:59,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/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 [2019-11-25 08:51:59,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-25 08:51:59,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:59,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-25 08:51:59,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:51:59,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-25 08:51:59,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-25 08:51:59,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-25 08:51:59,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-25 08:51:59,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-25 08:51:59,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-25 08:51:59,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-25 08:51:59,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-25 08:51:59,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-25 08:51:59,941 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-25 08:51:59,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-25 08:51:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-25 08:51:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-25 08:51:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-25 08:51:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-25 08:51:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-25 08:51:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-25 08:51:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-25 08:51:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-25 08:51:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-25 08:51:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-25 08:51:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-25 08:51:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-25 08:51:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-25 08:51:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-25 08:51:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-25 08:51:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-25 08:51:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-25 08:51:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-25 08:51:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-25 08:51:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-25 08:51:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-25 08:51:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-25 08:51:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-25 08:51:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-25 08:51:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-25 08:51:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-25 08:51:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-25 08:51:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure h_safe [2019-11-25 08:51:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-25 08:51:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-25 08:51:59,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-25 08:51:59,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-25 08:51:59,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-25 08:51:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-25 08:51:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-25 08:51:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-25 08:51:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-25 08:51:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-25 08:51:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-25 08:51:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-25 08:51:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-25 08:51:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-25 08:51:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-25 08:51:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-25 08:51:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-25 08:51:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-25 08:51:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-25 08:51:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-25 08:51:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-25 08:51:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-25 08:51:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-25 08:51:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-25 08:51:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-25 08:51:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-25 08:51:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-25 08:51:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-25 08:51:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-25 08:51:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-25 08:51:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-25 08:51:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-25 08:51:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-25 08:51:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-25 08:51:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-25 08:51:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-25 08:51:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-25 08:51:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-25 08:51:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-25 08:51:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-25 08:51:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-25 08:51:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-25 08:51:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-25 08:51:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-25 08:51:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-25 08:51:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-25 08:51:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-25 08:51:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-25 08:51:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-25 08:51:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-25 08:51:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-25 08:51:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-25 08:51:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-25 08:51:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-25 08:51:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-25 08:51:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-25 08:51:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-25 08:51:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-25 08:51:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-25 08:51:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-25 08:51:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-25 08:51:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-25 08:51:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-25 08:51:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-25 08:51:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-25 08:51:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-25 08:51:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-25 08:51:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-25 08:51:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-25 08:51:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-25 08:51:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-25 08:51:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-25 08:51:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-25 08:51:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-25 08:51:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-25 08:51:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-25 08:51:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-25 08:51:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-25 08:51:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-25 08:51:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-25 08:51:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-25 08:51:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-25 08:51:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-25 08:51:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-25 08:51:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-25 08:51:59,958 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-25 08:51:59,961 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-25 08:51:59,962 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-25 08:51:59,962 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-25 08:51:59,962 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-25 08:51:59,962 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-25 08:51:59,962 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-25 08:51:59,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-25 08:51:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-25 08:51:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-25 08:51:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-25 08:51:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-25 08:51:59,963 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-25 08:51:59,964 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-25 08:51:59,964 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-25 08:51:59,964 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-25 08:51:59,964 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-25 08:51:59,964 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-25 08:51:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-25 08:51:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-25 08:51:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-25 08:51:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-25 08:51:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-25 08:51:59,965 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-25 08:51:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-25 08:51:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-25 08:51:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-25 08:51:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-25 08:51:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-25 08:51:59,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-25 08:51:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-25 08:51:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-25 08:51:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-25 08:51:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-25 08:51:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:51:59,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-25 08:51:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-25 08:51:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-25 08:51:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-25 08:51:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-25 08:51:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-25 08:51:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-25 08:51:59,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-25 08:51:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-25 08:51:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-25 08:51:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-25 08:51:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-25 08:51:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-25 08:51:59,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-25 08:51:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-25 08:51:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-25 08:51:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-25 08:51:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-25 08:51:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-25 08:51:59,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:51:59,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:51:59,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-25 08:51:59,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-25 08:51:59,972 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-25 08:51:59,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-25 08:51:59,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-25 08:51:59,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-25 08:51:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-25 08:51:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-25 08:51:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-25 08:51:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-25 08:51:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-25 08:51:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-25 08:51:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-25 08:51:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-25 08:51:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-25 08:51:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-25 08:51:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-25 08:51:59,973 INFO L130 BoogieDeclarations]: Found specification of procedure h_safe [2019-11-25 08:51:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-25 08:51:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-25 08:51:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-25 08:51:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-25 08:51:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:51:59,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-25 08:51:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-25 08:51:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-25 08:51:59,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-25 08:52:00,557 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-25 08:52:00,955 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-25 08:52:01,308 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:01,309 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-25 08:52:01,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:01 BoogieIcfgContainer [2019-11-25 08:52:01,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:01,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:01,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:01,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:01,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:51:58" (1/3) ... [2019-11-25 08:52:01,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689e6fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:01, skipping insertion in model container [2019-11-25 08:52:01,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:59" (2/3) ... [2019-11-25 08:52:01,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@689e6fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:01, skipping insertion in model container [2019-11-25 08:52:01,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:01" (3/3) ... [2019-11-25 08:52:01,325 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test3-2.i [2019-11-25 08:52:01,334 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:01,343 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 74 error locations. [2019-11-25 08:52:01,355 INFO L249 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2019-11-25 08:52:01,384 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:01,385 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-25 08:52:01,385 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:01,385 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:01,385 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:01,389 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:01,390 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:01,390 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:01,410 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states. [2019-11-25 08:52:01,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-25 08:52:01,423 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:01,424 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:01,425 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:01,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:01,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1115971593, now seen corresponding path program 1 times [2019-11-25 08:52:01,441 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:01,442 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [347116920] [2019-11-25 08:52:01,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/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 [2019-11-25 08:52:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:01,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-25 08:52:01,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:01,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:01,845 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:01,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:01,981 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [347116920] [2019-11-25 08:52:01,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:01,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-25 08:52:01,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260370098] [2019-11-25 08:52:01,992 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:01,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:02,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:02,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:02,008 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 7 states. [2019-11-25 08:52:02,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:02,068 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-11-25 08:52:02,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:02,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-11-25 08:52:02,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:02,085 INFO L225 Difference]: With dead ends: 29 [2019-11-25 08:52:02,085 INFO L226 Difference]: Without dead ends: 26 [2019-11-25 08:52:02,087 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:02,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-25 08:52:02,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-25 08:52:02,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-25 08:52:02,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-11-25 08:52:02,127 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2019-11-25 08:52:02,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:02,128 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-11-25 08:52:02,128 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:02,128 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-11-25 08:52:02,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-25 08:52:02,129 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:02,129 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:02,341 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:02,342 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:02,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:02,342 INFO L82 PathProgramCache]: Analyzing trace with hash -235380623, now seen corresponding path program 1 times [2019-11-25 08:52:02,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:02,343 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [285328328] [2019-11-25 08:52:02,343 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/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 [2019-11-25 08:52:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:02,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:52:02,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:02,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:02,779 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:03,026 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [285328328] [2019-11-25 08:52:03,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:03,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [] total 12 [2019-11-25 08:52:03,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514137507] [2019-11-25 08:52:03,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-25 08:52:03,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:03,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-25 08:52:03,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:52:03,029 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 13 states. [2019-11-25 08:52:03,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:03,265 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-11-25 08:52:03,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:52:03,267 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2019-11-25 08:52:03,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:03,268 INFO L225 Difference]: With dead ends: 25 [2019-11-25 08:52:03,268 INFO L226 Difference]: Without dead ends: 25 [2019-11-25 08:52:03,269 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:52:03,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-11-25 08:52:03,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-11-25 08:52:03,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-25 08:52:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-11-25 08:52:03,272 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 19 [2019-11-25 08:52:03,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:03,272 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-11-25 08:52:03,273 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-25 08:52:03,273 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-11-25 08:52:03,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-25 08:52:03,277 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:03,277 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] [2019-11-25 08:52:03,480 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:03,481 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:03,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:03,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1293135673, now seen corresponding path program 1 times [2019-11-25 08:52:03,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:03,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1034361294] [2019-11-25 08:52:03,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/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 [2019-11-25 08:52:03,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:03,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-25 08:52:03,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:03,722 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 [2019-11-25 08:52:03,722 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:03,725 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:03,726 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:52:03,726 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-25 08:52:03,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:03,767 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:03,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:03,895 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1034361294] [2019-11-25 08:52:03,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:03,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2019-11-25 08:52:03,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243903135] [2019-11-25 08:52:03,896 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:03,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:03,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:03,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:03,897 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2019-11-25 08:52:04,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:04,010 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2019-11-25 08:52:04,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:04,010 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-11-25 08:52:04,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:04,013 INFO L225 Difference]: With dead ends: 37 [2019-11-25 08:52:04,013 INFO L226 Difference]: Without dead ends: 37 [2019-11-25 08:52:04,014 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:04,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-25 08:52:04,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2019-11-25 08:52:04,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-25 08:52:04,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2019-11-25 08:52:04,020 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 20 [2019-11-25 08:52:04,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:04,020 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2019-11-25 08:52:04,020 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:04,020 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2019-11-25 08:52:04,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-25 08:52:04,021 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:04,021 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] [2019-11-25 08:52:04,221 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:04,227 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:04,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:04,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1293383219, now seen corresponding path program 1 times [2019-11-25 08:52:04,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:04,228 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1252842399] [2019-11-25 08:52:04,228 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/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 [2019-11-25 08:52:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:04,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-25 08:52:04,434 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:04,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:04,478 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:04,646 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1252842399] [2019-11-25 08:52:04,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:04,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2019-11-25 08:52:04,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951946004] [2019-11-25 08:52:04,646 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-25 08:52:04,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:04,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-25 08:52:04,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:04,647 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 7 states. [2019-11-25 08:52:04,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:04,686 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2019-11-25 08:52:04,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:04,687 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2019-11-25 08:52:04,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:04,688 INFO L225 Difference]: With dead ends: 37 [2019-11-25 08:52:04,688 INFO L226 Difference]: Without dead ends: 37 [2019-11-25 08:52:04,688 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:04,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-25 08:52:04,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2019-11-25 08:52:04,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-11-25 08:52:04,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2019-11-25 08:52:04,693 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 20 [2019-11-25 08:52:04,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:04,693 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2019-11-25 08:52:04,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-25 08:52:04,693 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2019-11-25 08:52:04,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-25 08:52:04,694 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:04,694 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] [2019-11-25 08:52:04,897 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:04,898 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:04,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:04,898 INFO L82 PathProgramCache]: Analyzing trace with hash -503815686, now seen corresponding path program 1 times [2019-11-25 08:52:04,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:04,899 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1617261218] [2019-11-25 08:52:04,899 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/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 [2019-11-25 08:52:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:05,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-25 08:52:05,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:05,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:05,174 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:05,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:05,225 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1617261218] [2019-11-25 08:52:05,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:05,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2019-11-25 08:52:05,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647904081] [2019-11-25 08:52:05,226 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:52:05,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:05,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:52:05,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:52:05,227 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 8 states. [2019-11-25 08:52:05,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:05,277 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-11-25 08:52:05,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-25 08:52:05,278 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-11-25 08:52:05,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:05,278 INFO L225 Difference]: With dead ends: 34 [2019-11-25 08:52:05,278 INFO L226 Difference]: Without dead ends: 33 [2019-11-25 08:52:05,279 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:52:05,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-25 08:52:05,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2019-11-25 08:52:05,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-11-25 08:52:05,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2019-11-25 08:52:05,283 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 20 [2019-11-25 08:52:05,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:05,283 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2019-11-25 08:52:05,283 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:52:05,283 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2019-11-25 08:52:05,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-25 08:52:05,284 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:05,284 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] [2019-11-25 08:52:05,484 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:05,485 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:05,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:05,485 INFO L82 PathProgramCache]: Analyzing trace with hash -503568140, now seen corresponding path program 1 times [2019-11-25 08:52:05,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:05,486 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [757019985] [2019-11-25 08:52:05,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/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 [2019-11-25 08:52:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:05,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:52:05,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:05,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:05,682 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:05,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:05,775 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [757019985] [2019-11-25 08:52:05,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:05,776 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-25 08:52:05,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522119528] [2019-11-25 08:52:05,776 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:52:05,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:52:05,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:52:05,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:52:05,777 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 3 states. [2019-11-25 08:52:05,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:05,800 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2019-11-25 08:52:05,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:52:05,800 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-11-25 08:52:05,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:05,801 INFO L225 Difference]: With dead ends: 34 [2019-11-25 08:52:05,801 INFO L226 Difference]: Without dead ends: 24 [2019-11-25 08:52:05,802 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:52:05,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-25 08:52:05,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-25 08:52:05,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-25 08:52:05,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2019-11-25 08:52:05,804 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 20 [2019-11-25 08:52:05,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:05,805 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2019-11-25 08:52:05,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:52:05,805 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2019-11-25 08:52:05,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-25 08:52:05,805 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:05,805 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] [2019-11-25 08:52:06,008 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:06,009 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION, ldv_list_addErr1REQUIRES_VIOLATION, ldv_list_addErr0REQUIRES_VIOLATION, ldv_kobject_createErr1REQUIRES_VIOLATION, ldv_kobject_createErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr4REQUIRES_VIOLATION, ldv_destroy_msgsErr3REQUIRES_VIOLATION, ldv_destroy_msgsErr2REQUIRES_VIOLATION, ldv_destroy_msgsErr1REQUIRES_VIOLATION, ldv_destroy_msgsErr0REQUIRES_VIOLATION, ldv_destroy_msgsErr5REQUIRES_VIOLATION, ldv_msg_fillErr1REQUIRES_VIOLATION, ldv_msg_fillErr5REQUIRES_VIOLATION, ldv_msg_fillErr0REQUIRES_VIOLATION, ldv_msg_fillErr4REQUIRES_VIOLATION, ldv_msg_fillErr2REQUIRES_VIOLATION, ldv_msg_fillErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr1REQUIRES_VIOLATION, ldv_atomic_add_returnErr0REQUIRES_VIOLATION, ldv_atomic_add_returnErr3REQUIRES_VIOLATION, ldv_atomic_add_returnErr2REQUIRES_VIOLATION, __ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_delErr1REQUIRES_VIOLATION, __ldv_list_delErr2REQUIRES_VIOLATION, __ldv_list_delErr3REQUIRES_VIOLATION, ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr1REQUIRES_VIOLATION, ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_kobject_cleanupErr0REQUIRES_VIOLATION, ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr1REQUIRES_VIOLATION, ldv_msg_freeErr0REQUIRES_VIOLATION, ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK, LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION, LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION, ldv_list_delErr2REQUIRES_VIOLATION, ldv_list_delErr1REQUIRES_VIOLATION, ldv_list_delErr3REQUIRES_VIOLATION, ldv_list_delErr0REQUIRES_VIOLATION, __ldv_list_addErr5REQUIRES_VIOLATION, __ldv_list_addErr0REQUIRES_VIOLATION, __ldv_list_addErr1REQUIRES_VIOLATION, __ldv_list_addErr6REQUIRES_VIOLATION, __ldv_list_addErr7REQUIRES_VIOLATION, __ldv_list_addErr2REQUIRES_VIOLATION, __ldv_list_addErr3REQUIRES_VIOLATION, __ldv_list_addErr4REQUIRES_VIOLATION, ldv_dev_set_drvdataErr0REQUIRES_VIOLATION, ldv_dev_set_drvdataErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr1REQUIRES_VIOLATION, ldv_atomic_sub_returnErr0REQUIRES_VIOLATION, ldv_atomic_sub_returnErr3REQUIRES_VIOLATION, ldv_atomic_sub_returnErr2REQUIRES_VIOLATION, ldv_list_add_tailErr0REQUIRES_VIOLATION, ldv_list_add_tailErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr1REQUIRES_VIOLATION, ldv_dev_get_drvdataErr0REQUIRES_VIOLATION, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:52:06,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:06,009 INFO L82 PathProgramCache]: Analyzing trace with hash -2051414223, now seen corresponding path program 1 times [2019-11-25 08:52:06,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:52:06,010 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1745226598] [2019-11-25 08:52:06,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7208b001-9707-4cc2-85e0-c74605523ebd/bin/uautomizer/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 [2019-11-25 08:52:06,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:06,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-25 08:52:06,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:06,244 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:52:06,245 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 [2019-11-25 08:52:06,245 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:52:06,259 INFO L567 ElimStorePlain]: treesize reduction 10, result has 60.0 percent of original size [2019-11-25 08:52:06,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:06,262 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. [2019-11-25 08:52:06,262 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:15 [2019-11-25 08:52:06,262 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:06,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:06,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:06,298 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:12,503 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:52:16,898 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:52:16,899 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-25 08:52:16,902 INFO L168 Benchmark]: Toolchain (without parser) took 17973.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.5 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -138.9 MB). Peak memory consumption was 76.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:16,902 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:16,903 INFO L168 Benchmark]: CACSL2BoogieTranslator took 817.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:16,903 INFO L168 Benchmark]: Boogie Preprocessor took 117.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:16,904 INFO L168 Benchmark]: RCFGBuilder took 1445.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 114.8 MB). Peak memory consumption was 114.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:16,904 INFO L168 Benchmark]: TraceAbstraction took 15589.60 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 45.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -75.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:16,906 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 817.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 170.4 MB). Free memory was 940.7 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 117.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1445.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 114.8 MB). Peak memory consumption was 114.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15589.60 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 45.1 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -75.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Alternating quantifiers not yet supported de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Alternating quantifiers not yet supported: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.ElimStorePlain.applyComplexEliminationRules(ElimStorePlain.java:271) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...