./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.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_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ddfce359b3d8de0c5be1f8bf63d3270573e58c63 .................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- Skipped default analysis because property is memsafety ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:21:37,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:21:37,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:21:37,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:21:37,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:21:37,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:21:37,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:21:37,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:21:37,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:21:37,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:21:37,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:21:37,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:21:37,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:21:37,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:21:37,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:21:37,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:21:37,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:21:37,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:21:37,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:21:37,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:21:37,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:21:37,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:21:37,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:21:37,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:21:37,720 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:21:37,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:21:37,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:21:37,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:21:37,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:21:37,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:21:37,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:21:37,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:21:37,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:21:37,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:21:37,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:21:37,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:21:37,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:21:37,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:21:37,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:21:37,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:21:37,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:21:37,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2019-11-26 02:21:37,755 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:21:37,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:21:37,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:21:37,767 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:21:37,768 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:21:37,768 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:21:37,768 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:21:37,768 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:21:37,768 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:21:37,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:21:37,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:21:37,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:21:37,770 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:21:37,770 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:21:37,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:21:37,770 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:21:37,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:21:37,771 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 02:21:37,771 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 02:21:37,771 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 02:21:37,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:21:37,771 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:21:37,772 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:21:37,772 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:21:37,773 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:21:37,773 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:21:37,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:21:37,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:21:37,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:21:37,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:21:37,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:21:37,775 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:21:37,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:21:37,775 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:21:37,775 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:21:37,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:21:37,777 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_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan 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 -> Taipan 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 -> ddfce359b3d8de0c5be1f8bf63d3270573e58c63 [2019-11-26 02:21:37,913 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:21:37,925 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:21:37,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:21:37,932 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:21:37,933 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:21:37,933 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan/../../sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i [2019-11-26 02:21:38,000 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan/data/5d9a30599/e935934373df4506b71a10739151fb9d/FLAGdf686e74a [2019-11-26 02:21:38,439 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:21:38,440 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/sv-benchmarks/c/ldv-memsafety/memleaks_test20-1.i [2019-11-26 02:21:38,454 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan/data/5d9a30599/e935934373df4506b71a10739151fb9d/FLAGdf686e74a [2019-11-26 02:21:38,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan/data/5d9a30599/e935934373df4506b71a10739151fb9d [2019-11-26 02:21:38,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:21:38,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:21:38,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:21:38,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:21:38,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:21:38,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:21:38" (1/1) ... [2019-11-26 02:21:38,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d673b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:38, skipping insertion in model container [2019-11-26 02:21:38,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:21:38" (1/1) ... [2019-11-26 02:21:38,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:21:38,860 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:21:39,316 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 [2019-11-26 02:21:39,316 INFO L968 CHandler]: at location: C: (struct ldv_msg*)ldv_malloc(sizeof(struct ldv_msg)) [576] [2019-11-26 02:21:39,317 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-26 02:21:39,327 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 [2019-11-26 02:21:39,327 INFO L968 CHandler]: at location: C: (typeof(*msg) *)( (char *)__mptr - ((size_t) &((typeof(*msg) *)0)->list) ) [607] [2019-11-26 02:21:39,327 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-26 02:21:39,329 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 [2019-11-26 02:21:39,330 INFO L968 CHandler]: at location: C: (typeof(*(msg)) *)( (char *)__mptr - ((size_t) &((typeof(*(msg)) *)0)->list) ) [607] [2019-11-26 02:21:39,330 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-26 02:21:39,332 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 [2019-11-26 02:21:39,333 INFO L968 CHandler]: at location: C: (typeof(*(n)) *)( (char *)__mptr - ((size_t) &((typeof(*(n)) *)0)->list) ) [607] [2019-11-26 02:21:39,333 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-26 02:21:39,360 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 [2019-11-26 02:21:39,360 INFO L968 CHandler]: at location: C: (struct ldv_kobject *)( (char *)__mptr - ((size_t) &((struct ldv_kobject *)0)->kref) ) [706] [2019-11-26 02:21:39,360 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-26 02:21:39,370 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 [2019-11-26 02:21:39,370 INFO L968 CHandler]: at location: C: (struct A20*)ldv_malloc(sizeof(struct A20)) [772] [2019-11-26 02:21:39,371 INFO L969 CHandler]: current memory model: HoenickeLindenmann_4ByteResolution [2019-11-26 02:21:39,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:21:39,395 INFO L198 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-11-26 02:21:39,411 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:21:39,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:21:39,487 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:21:39,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:21:39,620 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:21:39,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:39 WrapperNode [2019-11-26 02:21:39,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:21:39,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:21:39,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:21:39,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:21:39,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:39" (1/1) ... [2019-11-26 02:21:39,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:39" (1/1) ... [2019-11-26 02:21:39,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:21:39,669 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:21:39,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:21:39,670 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:21:39,679 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:39" (1/1) ... [2019-11-26 02:21:39,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:39" (1/1) ... [2019-11-26 02:21:39,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:39" (1/1) ... [2019-11-26 02:21:39,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:39" (1/1) ... [2019-11-26 02:21:39,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:39" (1/1) ... [2019-11-26 02:21:39,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:39" (1/1) ... [2019-11-26 02:21:39,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:39" (1/1) ... [2019-11-26 02:21:39,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:21:39,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:21:39,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:21:39,694 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:21:39,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan/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 [2019-11-26 02:21:39,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-26 02:21:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:21:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-26 02:21:39,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:21:39,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:21:40,025 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:21:40,025 INFO L284 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-26 02:21:40,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:21:40 BoogieIcfgContainer [2019-11-26 02:21:40,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:21:40,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:21:40,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:21:40,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:21:40,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:21:38" (1/3) ... [2019-11-26 02:21:40,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b1d891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:21:40, skipping insertion in model container [2019-11-26 02:21:40,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:21:39" (2/3) ... [2019-11-26 02:21:40,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35b1d891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:21:40, skipping insertion in model container [2019-11-26 02:21:40,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:21:40" (3/3) ... [2019-11-26 02:21:40,033 INFO L109 eAbstractionObserver]: Analyzing ICFG memleaks_test20-1.i [2019-11-26 02:21:40,039 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:21:40,045 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:21:40,055 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:21:40,072 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:21:40,072 INFO L374 AbstractCegarLoop]: Hoare is false [2019-11-26 02:21:40,072 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:21:40,073 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:21:40,073 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:21:40,073 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:21:40,073 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:21:40,073 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:21:40,084 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-26 02:21:40,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:21:40,090 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:21:40,091 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:21:40,091 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK]=== [2019-11-26 02:21:40,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:21:40,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966440, now seen corresponding path program 1 times [2019-11-26 02:21:40,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:21:40,107 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1551409698] [2019-11-26 02:21:40,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a5ea41b-5854-4c13-ab3c-89f147e6c15c/bin/utaipan/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 [2019-11-26 02:21:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:21:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:21:40,330 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-11-26 02:21:40,333 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:21:40,544 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-11-26 02:21:40,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:21:40 BoogieIcfgContainer [2019-11-26 02:21:40,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:21:40,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:21:40,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:21:40,572 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:21:40,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:21:40" (3/4) ... [2019-11-26 02:21:40,579 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:21:40,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:21:40,581 INFO L168 Benchmark]: Toolchain (without parser) took 1804.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 939.4 MB in the beginning and 1.0 GB in the end (delta: -84.4 MB). Peak memory consumption was 41.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:21:40,582 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:21:40,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 843.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -133.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:21:40,583 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:21:40,584 INFO L168 Benchmark]: Boogie Preprocessor took 24.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:21:40,585 INFO L168 Benchmark]: RCFGBuilder took 332.58 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: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:21:40,586 INFO L168 Benchmark]: TraceAbstraction took 544.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:21:40,591 INFO L168 Benchmark]: Witness Printer took 7.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:21:40,596 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 843.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -133.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.68 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 332.58 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: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 544.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * Witness Printer took 7.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 781]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 781. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L761] struct ldv_device *saved_device_20; VAL [ldv_global_msg_list={2114:0}, saved_device_20={0:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); VAL [ldv_global_msg_list={2114:0}, saved_device_20={0:0}] [L772] struct A20 *p = (struct A20*)ldv_malloc(sizeof(struct A20)); [L773] COND TRUE \read(*p) [L763] saved_device_20 = dev VAL [ldv_global_msg_list={2114:0}, saved_device_20={-2147481534:4}] [L779] saved_device_20 = 0 VAL [ldv_global_msg_list={2114:0}, saved_device_20={0:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...