./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/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 c090728bcdd499bfd732daec58c15cc1b5f2f2aa ................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 04:46:41,662 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 04:46:41,663 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 04:46:41,672 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 04:46:41,672 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 04:46:41,673 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 04:46:41,674 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 04:46:41,676 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 04:46:41,677 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 04:46:41,678 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 04:46:41,679 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 04:46:41,679 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 04:46:41,680 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 04:46:41,681 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 04:46:41,682 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 04:46:41,683 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 04:46:41,684 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 04:46:41,685 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 04:46:41,687 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 04:46:41,688 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 04:46:41,689 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 04:46:41,690 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 04:46:41,692 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 04:46:41,692 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 04:46:41,692 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 04:46:41,693 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 04:46:41,694 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 04:46:41,694 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 04:46:41,696 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 04:46:41,697 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 04:46:41,697 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 04:46:41,697 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 04:46:41,697 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 04:46:41,698 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 04:46:41,698 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 04:46:41,700 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 04:46:41,700 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2018-10-27 04:46:41,717 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 04:46:41,718 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 04:46:41,718 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 04:46:41,718 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 04:46:41,719 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 04:46:41,719 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 04:46:41,719 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 04:46:41,719 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 04:46:41,719 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 04:46:41,719 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 04:46:41,720 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 04:46:41,720 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 04:46:41,720 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 04:46:41,720 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 04:46:41,721 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 04:46:41,721 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 04:46:41,721 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 04:46:41,721 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 04:46:41,721 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 04:46:41,721 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-27 04:46:41,721 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-27 04:46:41,722 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-27 04:46:41,722 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 04:46:41,722 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 04:46:41,722 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 04:46:41,722 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 04:46:41,722 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 04:46:41,722 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 04:46:41,722 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 04:46:41,723 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 04:46:41,723 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 04:46:41,723 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 04:46:41,725 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 04:46:41,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 04:46:41,725 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/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 -> c090728bcdd499bfd732daec58c15cc1b5f2f2aa [2018-10-27 04:46:41,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 04:46:41,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 04:46:41,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 04:46:41,780 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 04:46:41,780 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 04:46:41,781 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/utaipan/../../sv-benchmarks/c/array-memsafety/stroeder1_unsafe_false-valid-deref.i [2018-10-27 04:46:41,820 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/utaipan/data/086a4c535/7ac90b86a7024372aa83642665924046/FLAGd1d2f3856 [2018-10-27 04:46:42,173 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 04:46:42,174 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/sv-benchmarks/c/array-memsafety/stroeder1_unsafe_false-valid-deref.i [2018-10-27 04:46:42,181 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/utaipan/data/086a4c535/7ac90b86a7024372aa83642665924046/FLAGd1d2f3856 [2018-10-27 04:46:42,191 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/utaipan/data/086a4c535/7ac90b86a7024372aa83642665924046 [2018-10-27 04:46:42,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 04:46:42,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 04:46:42,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 04:46:42,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 04:46:42,199 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 04:46:42,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:46:42" (1/1) ... [2018-10-27 04:46:42,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55c98bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42, skipping insertion in model container [2018-10-27 04:46:42,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 04:46:42" (1/1) ... [2018-10-27 04:46:42,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 04:46:42,229 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 04:46:42,341 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:46:42,349 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 04:46:42,361 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 04:46:42,374 INFO L193 MainTranslator]: Completed translation [2018-10-27 04:46:42,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42 WrapperNode [2018-10-27 04:46:42,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 04:46:42,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 04:46:42,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 04:46:42,376 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 04:46:42,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42" (1/1) ... [2018-10-27 04:46:42,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42" (1/1) ... [2018-10-27 04:46:42,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 04:46:42,405 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 04:46:42,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 04:46:42,405 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 04:46:42,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42" (1/1) ... [2018-10-27 04:46:42,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42" (1/1) ... [2018-10-27 04:46:42,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42" (1/1) ... [2018-10-27 04:46:42,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42" (1/1) ... [2018-10-27 04:46:42,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42" (1/1) ... [2018-10-27 04:46:42,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42" (1/1) ... [2018-10-27 04:46:42,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42" (1/1) ... [2018-10-27 04:46:42,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 04:46:42,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 04:46:42,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 04:46:42,421 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 04:46:42,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/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 [2018-10-27 04:46:42,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 04:46:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 04:46:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2018-10-27 04:46:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2018-10-27 04:46:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 04:46:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 04:46:42,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 04:46:42,531 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 04:46:42,858 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 04:46:42,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:46:42 BoogieIcfgContainer [2018-10-27 04:46:42,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 04:46:42,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 04:46:42,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 04:46:42,863 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 04:46:42,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 04:46:42" (1/3) ... [2018-10-27 04:46:42,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac8b557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:46:42, skipping insertion in model container [2018-10-27 04:46:42,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 04:46:42" (2/3) ... [2018-10-27 04:46:42,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ac8b557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 04:46:42, skipping insertion in model container [2018-10-27 04:46:42,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:46:42" (3/3) ... [2018-10-27 04:46:42,866 INFO L112 eAbstractionObserver]: Analyzing ICFG stroeder1_unsafe_false-valid-deref.i [2018-10-27 04:46:42,875 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 04:46:42,882 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-10-27 04:46:42,896 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-10-27 04:46:42,919 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 04:46:42,919 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-27 04:46:42,919 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 04:46:42,919 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 04:46:42,920 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 04:46:42,920 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 04:46:42,920 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 04:46:42,920 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 04:46:42,933 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-10-27 04:46:42,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 04:46:42,941 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 04:46:42,942 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 04:46:42,944 INFO L424 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, sumOfThirdBytesErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-10-27 04:46:42,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 04:46:42,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1614335890, now seen corresponding path program 1 times [2018-10-27 04:46:42,952 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 04:46:42,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:42,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 04:46:42,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 04:46:42,994 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 04:46:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 04:46:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 04:46:43,065 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 04:46:43,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 04:46:43 BoogieIcfgContainer [2018-10-27 04:46:43,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 04:46:43,086 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 04:46:43,086 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 04:46:43,087 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 04:46:43,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 04:46:42" (3/4) ... [2018-10-27 04:46:43,090 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-27 04:46:43,134 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5954d0c8-044e-44ae-94ef-eaea317c0bca/bin-2019/utaipan/witness.graphml [2018-10-27 04:46:43,134 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 04:46:43,135 INFO L168 Benchmark]: Toolchain (without parser) took 941.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -138.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 04:46:43,138 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 04:46:43,139 INFO L168 Benchmark]: CACSL2BoogieTranslator took 179.68 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:43,140 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.08 ms. Allocated memory is still 1.0 GB. Free memory is still 949.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 04:46:43,141 INFO L168 Benchmark]: Boogie Preprocessor took 15.23 ms. Allocated memory is still 1.0 GB. Free memory was 949.3 MB in the beginning and 946.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:43,141 INFO L168 Benchmark]: RCFGBuilder took 438.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 946.7 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:43,141 INFO L168 Benchmark]: TraceAbstraction took 226.87 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:43,142 INFO L168 Benchmark]: Witness Printer took 48.15 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 04:46:43,145 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 179.68 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.08 ms. Allocated memory is still 1.0 GB. Free memory is still 949.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.23 ms. Allocated memory is still 1.0 GB. Free memory was 949.3 MB in the beginning and 946.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 438.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 946.7 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 226.87 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Witness Printer took 48.15 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L15] int* numbers; [L16] int array_size = __VERIFIER_nondet_int(); [L17] CALL sumOfThirdBytes(numbers, array_size) [L4] int i, sum; [L5] char* p; [L6] sum = 0 [L7] i = 0 [L7] COND TRUE i < array_size [L8] p = &(numbers[i]) [L9] p = p + 2 [L10] CALL \read(*p) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 3 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...