./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.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_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/bin/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/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 ca8443f02e84c43442a8563176ea0a68cc82ac31 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-25 08:54:10,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:54:10,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:54:10,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:54:10,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:54:10,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:54:10,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:54:10,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:54:10,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:54:10,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:54:10,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:54:10,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:54:10,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:54:10,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:54:10,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:54:10,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:54:10,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:54:10,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:54:10,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:54:10,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:54:10,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:54:10,807 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:54:10,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:54:10,808 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:54:10,810 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:54:10,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:54:10,811 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:54:10,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:54:10,812 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:54:10,813 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:54:10,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:54:10,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:54:10,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:54:10,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:54:10,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:54:10,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:54:10,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:54:10,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:54:10,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:54:10,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:54:10,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:54:10,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/bin/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-25 08:54:10,845 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:54:10,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:54:10,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:54:10,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:54:10,852 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:54:10,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:54:10,853 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:54:10,853 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:54:10,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:54:10,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:54:10,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:54:10,854 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-25 08:54:10,854 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-25 08:54:10,854 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-25 08:54:10,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:54:10,855 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-25 08:54:10,855 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-25 08:54:10,855 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-25 08:54:10,855 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:54:10,856 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:54:10,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:54:10,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:54:10,856 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:54:10,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:54:10,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:54:10,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:54:10,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:54:10,857 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-25 08:54:10,858 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-25 08:54:10,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-25 08:54:10,858 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_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/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 -> ca8443f02e84c43442a8563176ea0a68cc82ac31 [2019-11-25 08:54:11,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:54:11,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:54:11,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:54:11,044 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:54:11,044 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:54:11,045 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/bin/uautomizer/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2019-11-25 08:54:11,101 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/bin/uautomizer/data/93da5d6cc/73ed019a103d4ef08664b280c538c099/FLAG844b47d60 [2019-11-25 08:54:11,565 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:54:11,567 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/sv-benchmarks/c/ldv-memsafety/memleaks_test1-2.i [2019-11-25 08:54:11,584 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/bin/uautomizer/data/93da5d6cc/73ed019a103d4ef08664b280c538c099/FLAG844b47d60 [2019-11-25 08:54:11,907 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/bin/uautomizer/data/93da5d6cc/73ed019a103d4ef08664b280c538c099 [2019-11-25 08:54:11,913 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:54:11,914 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-25 08:54:11,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:11,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:54:11,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:54:11,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:11" (1/1) ... [2019-11-25 08:54:11,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ebebbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:11, skipping insertion in model container [2019-11-25 08:54:11,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:54:11" (1/1) ... [2019-11-25 08:54:11,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:54:11,988 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:12,401 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 08:54:12,401 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [576] [2019-11-25 08:54:12,401 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:54:12,411 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 08:54:12,411 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [607] [2019-11-25 08:54:12,411 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:54:12,413 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 08:54:12,413 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [607] [2019-11-25 08:54:12,414 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:54:12,416 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 08:54:12,416 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [607] [2019-11-25 08:54:12,416 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:54:12,436 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 08:54:12,437 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [706] [2019-11-25 08:54:12,437 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:54:12,446 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 08:54:12,446 INFO L968 CHandler]: at location: C: (int *)ldv_malloc(sizeof(int)) [758] [2019-11-25 08:54:12,446 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-25 08:54:12,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:12,465 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-25 08:54:12,485 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:54:12,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:12,528 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:54:12,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:54:12,664 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:54:12,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:12 WrapperNode [2019-11-25 08:54:12,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:54:12,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:54:12,668 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:54:12,668 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:54:12,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:12" (1/1) ... [2019-11-25 08:54:12,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:12" (1/1) ... [2019-11-25 08:54:12,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:12" (1/1) ... [2019-11-25 08:54:12,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:12" (1/1) ... [2019-11-25 08:54:12,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:12" (1/1) ... [2019-11-25 08:54:12,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:12" (1/1) ... [2019-11-25 08:54:12,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:12" (1/1) ... [2019-11-25 08:54:12,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:54:12,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:54:12,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:54:12,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:54:12,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/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 08:54:12,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-25 08:54:12,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:54:12,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-11-25 08:54:12,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:54:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2019-11-25 08:54:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2019-11-25 08:54:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2019-11-25 08:54:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2019-11-25 08:54:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2019-11-25 08:54:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2019-11-25 08:54:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2019-11-25 08:54:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-25 08:54:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-25 08:54:12,809 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2019-11-25 08:54:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2019-11-25 08:54:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2019-11-25 08:54:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2019-11-25 08:54:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2019-11-25 08:54:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2019-11-25 08:54:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2019-11-25 08:54:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2019-11-25 08:54:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2019-11-25 08:54:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2019-11-25 08:54:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2019-11-25 08:54:12,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2019-11-25 08:54:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2019-11-25 08:54:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2019-11-25 08:54:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2019-11-25 08:54:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2019-11-25 08:54:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2019-11-25 08:54:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2019-11-25 08:54:12,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2019-11-25 08:54:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2019-11-25 08:54:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2019-11-25 08:54:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2019-11-25 08:54:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2019-11-25 08:54:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2019-11-25 08:54:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2019-11-25 08:54:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2019-11-25 08:54:12,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2019-11-25 08:54:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-25 08:54:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-25 08:54:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2019-11-25 08:54:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-25 08:54:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-25 08:54:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-25 08:54:12,813 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-11-25 08:54:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2019-11-25 08:54:12,813 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2019-11-25 08:54:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2019-11-25 08:54:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2019-11-25 08:54:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2019-11-25 08:54:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2019-11-25 08:54:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2019-11-25 08:54:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2019-11-25 08:54:12,814 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2019-11-25 08:54:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2019-11-25 08:54:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2019-11-25 08:54:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2019-11-25 08:54:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2019-11-25 08:54:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2019-11-25 08:54:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2019-11-25 08:54:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2019-11-25 08:54:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2019-11-25 08:54:12,815 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2019-11-25 08:54:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2019-11-25 08:54:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2019-11-25 08:54:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2019-11-25 08:54:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure select [2019-11-25 08:54:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2019-11-25 08:54:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2019-11-25 08:54:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2019-11-25 08:54:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2019-11-25 08:54:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure random [2019-11-25 08:54:12,816 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2019-11-25 08:54:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2019-11-25 08:54:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2019-11-25 08:54:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2019-11-25 08:54:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2019-11-25 08:54:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2019-11-25 08:54:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2019-11-25 08:54:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2019-11-25 08:54:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2019-11-25 08:54:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2019-11-25 08:54:12,817 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2019-11-25 08:54:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2019-11-25 08:54:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2019-11-25 08:54:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2019-11-25 08:54:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2019-11-25 08:54:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2019-11-25 08:54:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2019-11-25 08:54:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2019-11-25 08:54:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2019-11-25 08:54:12,818 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2019-11-25 08:54:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2019-11-25 08:54:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2019-11-25 08:54:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2019-11-25 08:54:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2019-11-25 08:54:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2019-11-25 08:54:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2019-11-25 08:54:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2019-11-25 08:54:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2019-11-25 08:54:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-25 08:54:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-25 08:54:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2019-11-25 08:54:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-25 08:54:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2019-11-25 08:54:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2019-11-25 08:54:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2019-11-25 08:54:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2019-11-25 08:54:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-11-25 08:54:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2019-11-25 08:54:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2019-11-25 08:54:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2019-11-25 08:54:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-25 08:54:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2019-11-25 08:54:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2019-11-25 08:54:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2019-11-25 08:54:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2019-11-25 08:54:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2019-11-25 08:54:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2019-11-25 08:54:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2019-11-25 08:54:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2019-11-25 08:54:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2019-11-25 08:54:12,822 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2019-11-25 08:54:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2019-11-25 08:54:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure system [2019-11-25 08:54:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2019-11-25 08:54:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2019-11-25 08:54:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2019-11-25 08:54:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2019-11-25 08:54:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2019-11-25 08:54:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2019-11-25 08:54:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure div [2019-11-25 08:54:12,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2019-11-25 08:54:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2019-11-25 08:54:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2019-11-25 08:54:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2019-11-25 08:54:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2019-11-25 08:54:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2019-11-25 08:54:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2019-11-25 08:54:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2019-11-25 08:54:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2019-11-25 08:54:12,824 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2019-11-25 08:54:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2019-11-25 08:54:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2019-11-25 08:54:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2019-11-25 08:54:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2019-11-25 08:54:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2019-11-25 08:54:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2019-11-25 08:54:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2019-11-25 08:54:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2019-11-25 08:54:12,825 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2019-11-25 08:54:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2019-11-25 08:54:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-25 08:54:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-25 08:54:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2019-11-25 08:54:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2019-11-25 08:54:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-11-25 08:54:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-25 08:54:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-25 08:54:12,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:54:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-25 08:54:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-25 08:54:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2019-11-25 08:54:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-25 08:54:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2019-11-25 08:54:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2019-11-25 08:54:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2019-11-25 08:54:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-25 08:54:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2019-11-25 08:54:12,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2019-11-25 08:54:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2019-11-25 08:54:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2019-11-25 08:54:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-11-25 08:54:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2019-11-25 08:54:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:54:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2019-11-25 08:54:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2019-11-25 08:54:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2019-11-25 08:54:12,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2019-11-25 08:54:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2019-11-25 08:54:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-25 08:54:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-25 08:54:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2019-11-25 08:54:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2019-11-25 08:54:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-11-25 08:54:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2019-11-25 08:54:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2019-11-25 08:54:12,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2019-11-25 08:54:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2019-11-25 08:54:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2019-11-25 08:54:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2019-11-25 08:54:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2019-11-25 08:54:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2019-11-25 08:54:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2019-11-25 08:54:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2019-11-25 08:54:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2019-11-25 08:54:12,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-25 08:54:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-25 08:54:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-25 08:54:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2019-11-25 08:54:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-25 08:54:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-25 08:54:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:54:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-25 08:54:12,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:54:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2019-11-25 08:54:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2019-11-25 08:54:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2019-11-25 08:54:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-11-25 08:54:12,832 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-11-25 08:54:13,369 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-25 08:54:13,758 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-25 08:54:14,159 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:54:14,168 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-25 08:54:14,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:14 BoogieIcfgContainer [2019-11-25 08:54:14,169 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:54:14,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:54:14,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:54:14,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:54:14,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:54:11" (1/3) ... [2019-11-25 08:54:14,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd2aa6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:14, skipping insertion in model container [2019-11-25 08:54:14,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:54:12" (2/3) ... [2019-11-25 08:54:14,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd2aa6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:54:14, skipping insertion in model container [2019-11-25 08:54:14,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:14" (3/3) ... [2019-11-25 08:54:14,177 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test1-2.i [2019-11-25 08:54:14,185 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:54:14,197 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 77 error locations. [2019-11-25 08:54:14,206 INFO L249 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2019-11-25 08:54:14,222 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:54:14,222 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-25 08:54:14,222 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:54:14,222 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:54:14,222 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:54:14,223 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:54:14,223 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:54:14,223 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:54:14,236 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states. [2019-11-25 08:54:14,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-25 08:54:14,242 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:14,243 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:14,243 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_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:54:14,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:14,247 INFO L82 PathProgramCache]: Analyzing trace with hash 158552258, now seen corresponding path program 1 times [2019-11-25 08:54:14,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:14,257 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [734142960] [2019-11-25 08:54:14,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/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 08:54:14,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:14,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:54:14,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:14,565 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 08:54:14,565 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:14,608 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 08:54:14,609 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [734142960] [2019-11-25 08:54:14,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:14,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-25 08:54:14,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093823713] [2019-11-25 08:54:14,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:54:14,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:14,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:54:14,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:14,633 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 5 states. [2019-11-25 08:54:14,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:14,669 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-11-25 08:54:14,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:54:14,671 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-11-25 08:54:14,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:14,680 INFO L225 Difference]: With dead ends: 29 [2019-11-25 08:54:14,681 INFO L226 Difference]: Without dead ends: 26 [2019-11-25 08:54:14,682 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:14,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-25 08:54:14,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-11-25 08:54:14,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-11-25 08:54:14,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2019-11-25 08:54:14,716 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 13 [2019-11-25 08:54:14,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:14,716 INFO L462 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2019-11-25 08:54:14,716 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:54:14,716 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2019-11-25 08:54:14,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-25 08:54:14,717 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:14,718 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:14,922 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:14,923 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_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:54:14,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:14,923 INFO L82 PathProgramCache]: Analyzing trace with hash 620153091, now seen corresponding path program 1 times [2019-11-25 08:54:14,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:14,925 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [999313052] [2019-11-25 08:54:14,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/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 08:54:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:15,196 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-25 08:54:15,197 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:15,254 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 08:54:15,254 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:15,343 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 08:54:15,343 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [999313052] [2019-11-25 08:54:15,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:15,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 8 [2019-11-25 08:54:15,344 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391290577] [2019-11-25 08:54:15,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-25 08:54:15,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:15,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-25 08:54:15,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:54:15,346 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 9 states. [2019-11-25 08:54:15,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:15,485 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-11-25 08:54:15,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-25 08:54:15,486 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-11-25 08:54:15,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:15,487 INFO L225 Difference]: With dead ends: 24 [2019-11-25 08:54:15,487 INFO L226 Difference]: Without dead ends: 24 [2019-11-25 08:54:15,488 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:54:15,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-25 08:54:15,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-25 08:54:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-25 08:54:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-11-25 08:54:15,492 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 14 [2019-11-25 08:54:15,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:15,492 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-11-25 08:54:15,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-25 08:54:15,492 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-11-25 08:54:15,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-25 08:54:15,493 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:15,493 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:15,696 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:15,698 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_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:54:15,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:15,699 INFO L82 PathProgramCache]: Analyzing trace with hash 2044877028, now seen corresponding path program 1 times [2019-11-25 08:54:15,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:15,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1216496646] [2019-11-25 08:54:15,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/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 08:54:15,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:15,968 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-25 08:54:15,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:16,042 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 08:54:16,042 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-25 08:54:16,048 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-25 08:54:16,048 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-25 08:54:16,049 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2019-11-25 08:54:16,075 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 08:54:16,075 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:16,145 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 08:54:16,145 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1216496646] [2019-11-25 08:54:16,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:16,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-25 08:54:16,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360555037] [2019-11-25 08:54:16,146 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:54:16,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:16,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:54:16,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:16,147 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 5 states. [2019-11-25 08:54:16,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:16,203 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-11-25 08:54:16,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:54:16,203 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-11-25 08:54:16,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:16,204 INFO L225 Difference]: With dead ends: 30 [2019-11-25 08:54:16,205 INFO L226 Difference]: Without dead ends: 30 [2019-11-25 08:54:16,205 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:16,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-25 08:54:16,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-25 08:54:16,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-25 08:54:16,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2019-11-25 08:54:16,210 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 15 [2019-11-25 08:54:16,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:16,210 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2019-11-25 08:54:16,210 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:54:16,210 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2019-11-25 08:54:16,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-25 08:54:16,211 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:16,211 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:54:16,412 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:16,414 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_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:54:16,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:16,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1362586587, now seen corresponding path program 1 times [2019-11-25 08:54:16,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:16,417 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1077660860] [2019-11-25 08:54:16,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/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 08:54:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:54:16,628 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:54:16,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:54:16,651 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 08:54:16,651 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-25 08:54:16,667 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 08:54:16,668 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1077660860] [2019-11-25 08:54:16,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:54:16,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-11-25 08:54:16,668 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41006948] [2019-11-25 08:54:16,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:54:16,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-25 08:54:16,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:54:16,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:16,669 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand 5 states. [2019-11-25 08:54:16,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:54:16,697 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-11-25 08:54:16,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:54:16,698 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-11-25 08:54:16,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:54:16,700 INFO L225 Difference]: With dead ends: 34 [2019-11-25 08:54:16,700 INFO L226 Difference]: Without dead ends: 34 [2019-11-25 08:54:16,700 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:54:16,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-25 08:54:16,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2019-11-25 08:54:16,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-25 08:54:16,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2019-11-25 08:54:16,705 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 15 [2019-11-25 08:54:16,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:54:16,705 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2019-11-25 08:54:16,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:54:16,705 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2019-11-25 08:54:16,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-25 08:54:16,706 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:54:16,706 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 08:54:16,908 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:16,909 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_pointErr3ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr4ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr5ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE, entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE, ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION]=== [2019-11-25 08:54:16,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:54:16,909 INFO L82 PathProgramCache]: Analyzing trace with hash -884195001, now seen corresponding path program 1 times [2019-11-25 08:54:16,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-25 08:54:16,910 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [199166939] [2019-11-25 08:54:16,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/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 08:54:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:54:17,190 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-25 08:54:17,190 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:54:17,390 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-25 08:54:17,404 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-25 08:54:17,405 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-25 08:54:17,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:54:17 BoogieIcfgContainer [2019-11-25 08:54:17,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:54:17,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:54:17,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:54:17,413 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:54:17,413 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:54:14" (3/4) ... [2019-11-25 08:54:17,415 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:54:17,419 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-25 08:54:17,419 WARN L1295 BoogieBacktranslator]: Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# [2019-11-25 08:54:17,456 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9a6c210a-814e-42a7-b7ce-fc7215a38dd2/bin/uautomizer/witness.graphml [2019-11-25 08:54:17,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:54:17,458 INFO L168 Benchmark]: Toolchain (without parser) took 5543.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). Peak memory consumption was 84.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:17,458 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:17,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:17,459 INFO L168 Benchmark]: Boogie Preprocessor took 83.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:17,460 INFO L168 Benchmark]: RCFGBuilder took 1419.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.8 MB in the end (delta: 114.0 MB). Peak memory consumption was 114.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:17,460 INFO L168 Benchmark]: TraceAbstraction took 3242.33 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 975.8 MB in the beginning and 1.1 GB in the end (delta: -105.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:54:17,461 INFO L168 Benchmark]: Witness Printer took 43.43 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: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:54:17,463 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 750.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -151.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1419.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.8 MB in the end (delta: 114.0 MB). Peak memory consumption was 114.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3242.33 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 975.8 MB in the beginning and 1.1 GB in the end (delta: -105.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 43.43 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: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: BitvecLiteral 0bv32 could not be translated for associated CType STRUCT~~ldv_list_head?next~*ldv_list_head?prev~*ldv_list_head# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 760]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={268468227:0}] [L763] CALL entry_point() VAL [ldv_global_msg_list={268468227:0}] [L758] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={268468227:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [\old(size)=4, \result={1:0}, ldv_global_msg_list={268468227:0}, malloc(size)={1:0}, size=4] [L758] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={268468227:0}, ldv_malloc(sizeof(int))={1:0}] [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] free(p) VAL [ldv_global_msg_list={268468227:0}, p={1:0}] [L759] free(p) VAL [ldv_global_msg_list={268468227:0}, p={1:0}] [L759] free(p) [L760] free(p) VAL [ldv_global_msg_list={268468227:0}, p={1:0}] [L760] free(p) VAL [ldv_global_msg_list={268468227:0}, p={1:0}] [L760] free(p) VAL [ldv_global_msg_list={268468227:0}, p={1:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 341 locations, 77 error locations. Result: UNSAFE, OverallTime: 3.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 37 SDslu, 222 SDs, 0 SdLazy, 145 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 3648 SizeOfPredicates, 4 NumberOfNonLiveVariables, 257 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...