./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrncpy_unsafe_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrncpy_unsafe_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/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 c81e125b758f7bd46f8766ed5eff061983b5b8e8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-aa41828 [2018-11-23 15:56:24,678 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:56:24,679 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:56:24,686 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:56:24,686 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:56:24,687 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:56:24,688 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:56:24,690 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:56:24,691 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:56:24,692 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:56:24,693 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:56:24,694 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:56:24,695 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:56:24,695 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:56:24,696 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:56:24,697 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:56:24,698 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:56:24,699 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:56:24,701 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:56:24,703 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:56:24,704 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:56:24,705 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:56:24,707 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:56:24,707 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:56:24,707 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:56:24,708 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:56:24,709 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:56:24,710 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:56:24,711 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:56:24,712 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:56:24,712 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:56:24,712 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:56:24,713 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:56:24,713 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:56:24,714 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:56:24,715 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:56:24,715 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-23 15:56:24,726 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:56:24,726 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:56:24,727 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 15:56:24,728 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 15:56:24,728 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 15:56:24,729 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 15:56:24,729 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 15:56:24,729 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:56:24,729 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 15:56:24,729 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 15:56:24,729 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 15:56:24,730 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 15:56:24,730 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:56:24,730 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-23 15:56:24,730 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-23 15:56:24,730 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-23 15:56:24,730 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 15:56:24,730 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 15:56:24,731 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:56:24,731 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:56:24,731 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:56:24,731 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 15:56:24,731 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 15:56:24,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 15:56:24,732 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:56:24,732 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 15:56:24,732 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 15:56:24,732 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 15:56:24,732 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/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 -> c81e125b758f7bd46f8766ed5eff061983b5b8e8 [2018-11-23 15:56:24,760 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:56:24,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:56:24,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:56:24,774 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:56:24,775 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:56:24,775 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrncpy_unsafe_false-valid-deref.i [2018-11-23 15:56:24,817 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/uautomizer/data/eea515cc7/af99223946d745feaa9b37247506be7c/FLAG9158b32d4 [2018-11-23 15:56:25,226 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:56:25,227 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/sv-benchmarks/c/array-memsafety/cstrncpy_unsafe_false-valid-deref.i [2018-11-23 15:56:25,231 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/uautomizer/data/eea515cc7/af99223946d745feaa9b37247506be7c/FLAG9158b32d4 [2018-11-23 15:56:25,241 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/uautomizer/data/eea515cc7/af99223946d745feaa9b37247506be7c [2018-11-23 15:56:25,244 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:56:25,245 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-23 15:56:25,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:56:25,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:56:25,248 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:56:25,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:25" (1/1) ... [2018-11-23 15:56:25,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@99c936 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:25, skipping insertion in model container [2018-11-23 15:56:25,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:25" (1/1) ... [2018-11-23 15:56:25,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:56:25,271 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:56:25,388 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:56:25,396 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:56:25,407 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:56:25,418 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:56:25,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:25 WrapperNode [2018-11-23 15:56:25,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:56:25,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:56:25,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:56:25,419 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:56:25,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:25" (1/1) ... [2018-11-23 15:56:25,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:25" (1/1) ... [2018-11-23 15:56:25,433 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:25" (1/1) ... [2018-11-23 15:56:25,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:25" (1/1) ... [2018-11-23 15:56:25,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:25" (1/1) ... [2018-11-23 15:56:25,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:25" (1/1) ... [2018-11-23 15:56:25,440 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:25" (1/1) ... [2018-11-23 15:56:25,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:56:25,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:56:25,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:56:25,441 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:56:25,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/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 [2018-11-23 15:56:25,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 15:56:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:56:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrncpy [2018-11-23 15:56:25,516 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 15:56:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-23 15:56:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure cstrncpy [2018-11-23 15:56:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 15:56:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 15:56:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 15:56:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 15:56:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:56:25,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 15:56:25,650 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:56:25,650 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 15:56:25,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:25 BoogieIcfgContainer [2018-11-23 15:56:25,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:56:25,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 15:56:25,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 15:56:25,653 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 15:56:25,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:56:25" (1/3) ... [2018-11-23 15:56:25,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd8ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:56:25, skipping insertion in model container [2018-11-23 15:56:25,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:25" (2/3) ... [2018-11-23 15:56:25,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dd8ec4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:56:25, skipping insertion in model container [2018-11-23 15:56:25,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:25" (3/3) ... [2018-11-23 15:56:25,656 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrncpy_unsafe_false-valid-deref.i [2018-11-23 15:56:25,663 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 15:56:25,668 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-11-23 15:56:25,678 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-11-23 15:56:25,693 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 15:56:25,694 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 15:56:25,694 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-23 15:56:25,694 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 15:56:25,694 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:56:25,694 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:56:25,695 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 15:56:25,695 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:56:25,695 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 15:56:25,708 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-23 15:56:25,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 15:56:25,716 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 15:56:25,716 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 15:56:25,718 INFO L423 AbstractCegarLoop]: === Iteration 1 === [cstrncpyErr4REQUIRES_VIOLATION, cstrncpyErr3REQUIRES_VIOLATION, cstrncpyErr2REQUIRES_VIOLATION, cstrncpyErr1REQUIRES_VIOLATION, cstrncpyErr0REQUIRES_VIOLATION, cstrncpyErr5REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-23 15:56:25,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:56:25,723 INFO L82 PathProgramCache]: Analyzing trace with hash 1937036803, now seen corresponding path program 1 times [2018-11-23 15:56:25,724 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:56:25,724 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:56:25,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:56:25,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:56:25,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:56:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:56:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:56:25,812 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=6, |#NULL.offset|=2, |old(#NULL.base)|=6, |old(#NULL.offset)|=2] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=6, |old(#NULL.offset)|=2] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=6, |old(#NULL.offset)|=2] [?] RET #54#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret8 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] havoc ~s1~0.base, ~s1~0.offset;havoc ~s2~0.base, ~s2~0.offset;assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647;~n~0 := #t~nondet6;havoc #t~nondet6; VAL [main_~n~0=1, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret7.base, #t~ret7.offset := cstrncpy(~s1~0.base, ~s1~0.offset, ~s2~0.base, ~s2~0.offset, ~n~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |cstrncpy_#in~n|=1, |cstrncpy_#in~s1.base|=5, |cstrncpy_#in~s1.offset|=(- 2), |cstrncpy_#in~s2.base|=4, |cstrncpy_#in~s2.offset|=(- 1)] [?] ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset;~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset;~n := #in~n;~dst~0.base, ~dst~0.offset := ~s1.base, ~s1.offset;~src~0.base, ~src~0.offset := ~s2.base, ~s2.offset;havoc ~us~0.base, ~us~0.offset;havoc ~n2~0; VAL [cstrncpy_~dst~0.base=5, cstrncpy_~dst~0.offset=(- 2), cstrncpy_~n=1, cstrncpy_~s1.base=5, cstrncpy_~s1.offset=(- 2), cstrncpy_~s2.base=4, cstrncpy_~s2.offset=(- 1), cstrncpy_~src~0.base=4, cstrncpy_~src~0.offset=(- 1), |#NULL.base|=0, |#NULL.offset|=0, |cstrncpy_#in~n|=1, |cstrncpy_#in~s1.base|=5, |cstrncpy_#in~s1.offset|=(- 2), |cstrncpy_#in~s2.base|=4, |cstrncpy_#in~s2.offset|=(- 1)] [?] assume !!(~n > 0);#t~post0 := ~n;~n := #t~post0 - 1;havoc #t~post0;#t~post1.base, #t~post1.offset := ~dst~0.base, ~dst~0.offset;~dst~0.base, ~dst~0.offset := #t~post1.base, 1 + #t~post1.offset;#t~post2.base, #t~post2.offset := ~src~0.base, ~src~0.offset;~src~0.base, ~src~0.offset := #t~post2.base, 1 + #t~post2.offset; VAL [cstrncpy_~dst~0.base=5, cstrncpy_~dst~0.offset=(- 1), cstrncpy_~n=0, cstrncpy_~s1.base=5, cstrncpy_~s1.offset=(- 2), cstrncpy_~s2.base=4, cstrncpy_~s2.offset=(- 1), cstrncpy_~src~0.base=4, cstrncpy_~src~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |cstrncpy_#in~n|=1, |cstrncpy_#in~s1.base|=5, |cstrncpy_#in~s1.offset|=(- 2), |cstrncpy_#in~s2.base|=4, |cstrncpy_#in~s2.offset|=(- 1), |cstrncpy_#t~post1.base|=5, |cstrncpy_#t~post1.offset|=(- 2), |cstrncpy_#t~post2.base|=4, |cstrncpy_#t~post2.offset|=(- 1)] [?] assume !(1 == #valid[#t~post2.base]); VAL [cstrncpy_~dst~0.base=5, cstrncpy_~dst~0.offset=(- 1), cstrncpy_~n=0, cstrncpy_~s1.base=5, cstrncpy_~s1.offset=(- 2), cstrncpy_~s2.base=4, cstrncpy_~s2.offset=(- 1), cstrncpy_~src~0.base=4, cstrncpy_~src~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |cstrncpy_#in~n|=1, |cstrncpy_#in~s1.base|=5, |cstrncpy_#in~s1.offset|=(- 2), |cstrncpy_#in~s2.base|=4, |cstrncpy_#in~s2.offset|=(- 1), |cstrncpy_#t~post1.base|=5, |cstrncpy_#t~post1.offset|=(- 2), |cstrncpy_#t~post2.base|=4, |cstrncpy_#t~post2.offset|=(- 1)] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=6, #NULL.offset=2, old(#NULL.base)=6, old(#NULL.offset)=2] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=6, old(#NULL.offset)=2] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=6, old(#NULL.offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret8 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L21] havoc ~s1~0.base, ~s1~0.offset; [L22] havoc ~s2~0.base, ~s2~0.offset; [L23] assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; [L23] ~n~0 := #t~nondet6; [L23] havoc #t~nondet6; VAL [#NULL.base=0, #NULL.offset=0, ~n~0=1] [L24] CALL call #t~ret7.base, #t~ret7.offset := cstrncpy(~s1~0.base, ~s1~0.offset, ~s2~0.base, ~s2~0.offset, ~n~0); VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0] [L2-L19] ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset; [L2-L19] ~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset; [L2-L19] ~n := #in~n; [L4] ~dst~0.base, ~dst~0.offset := ~s1.base, ~s1.offset; [L5] ~src~0.base, ~src~0.offset := ~s2.base, ~s2.offset; [L6] havoc ~us~0.base, ~us~0.offset; [L7] havoc ~n2~0; VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0, ~dst~0.base=5, ~dst~0.offset=-2, ~n=1, ~s1.base=5, ~s1.offset=-2, ~s2.base=4, ~s2.offset=-1, ~src~0.base=4, ~src~0.offset=-1] [L8-L17] assume !!(~n > 0); [L9] #t~post0 := ~n; [L9] ~n := #t~post0 - 1; [L9] havoc #t~post0; [L10] #t~post1.base, #t~post1.offset := ~dst~0.base, ~dst~0.offset; [L10] ~dst~0.base, ~dst~0.offset := #t~post1.base, 1 + #t~post1.offset; [L10] #t~post2.base, #t~post2.offset := ~src~0.base, ~src~0.offset; [L10] ~src~0.base, ~src~0.offset := #t~post2.base, 1 + #t~post2.offset; VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0, #t~post1.base=5, #t~post1.offset=-2, #t~post2.base=4, #t~post2.offset=-1, ~dst~0.base=5, ~dst~0.offset=-1, ~n=0, ~s1.base=5, ~s1.offset=-2, ~s2.base=4, ~s2.offset=-1, ~src~0.base=4, ~src~0.offset=0] [L10] call #t~mem3 := read~int(#t~post2.base, #t~post2.offset, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0, #t~post1.base=5, #t~post1.offset=-2, #t~post2.base=4, #t~post2.offset=-1, ~dst~0.base=5, ~dst~0.offset=-1, ~n=0, ~s1.base=5, ~s1.offset=-2, ~s2.base=4, ~s2.offset=-1, ~src~0.base=4, ~src~0.offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=6, #NULL.offset=2, old(#NULL.base)=6, old(#NULL.offset)=2] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=6, old(#NULL.offset)=2] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=6, old(#NULL.offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret8 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L21] havoc ~s1~0.base, ~s1~0.offset; [L22] havoc ~s2~0.base, ~s2~0.offset; [L23] assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; [L23] ~n~0 := #t~nondet6; [L23] havoc #t~nondet6; VAL [#NULL.base=0, #NULL.offset=0, ~n~0=1] [L24] CALL call #t~ret7.base, #t~ret7.offset := cstrncpy(~s1~0.base, ~s1~0.offset, ~s2~0.base, ~s2~0.offset, ~n~0); VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0] [L2-L19] ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset; [L2-L19] ~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset; [L2-L19] ~n := #in~n; [L4] ~dst~0.base, ~dst~0.offset := ~s1.base, ~s1.offset; [L5] ~src~0.base, ~src~0.offset := ~s2.base, ~s2.offset; [L6] havoc ~us~0.base, ~us~0.offset; [L7] havoc ~n2~0; VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0, ~dst~0.base=5, ~dst~0.offset=-2, ~n=1, ~s1.base=5, ~s1.offset=-2, ~s2.base=4, ~s2.offset=-1, ~src~0.base=4, ~src~0.offset=-1] [L8-L17] assume !!(~n > 0); [L9] #t~post0 := ~n; [L9] ~n := #t~post0 - 1; [L9] havoc #t~post0; [L10] #t~post1.base, #t~post1.offset := ~dst~0.base, ~dst~0.offset; [L10] ~dst~0.base, ~dst~0.offset := #t~post1.base, 1 + #t~post1.offset; [L10] #t~post2.base, #t~post2.offset := ~src~0.base, ~src~0.offset; [L10] ~src~0.base, ~src~0.offset := #t~post2.base, 1 + #t~post2.offset; VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0, #t~post1.base=5, #t~post1.offset=-2, #t~post2.base=4, #t~post2.offset=-1, ~dst~0.base=5, ~dst~0.offset=-1, ~n=0, ~s1.base=5, ~s1.offset=-2, ~s2.base=4, ~s2.offset=-1, ~src~0.base=4, ~src~0.offset=0] [L10] call #t~mem3 := read~int(#t~post2.base, #t~post2.offset, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0, #t~post1.base=5, #t~post1.offset=-2, #t~post2.base=4, #t~post2.offset=-1, ~dst~0.base=5, ~dst~0.offset=-1, ~n=0, ~s1.base=5, ~s1.offset=-2, ~s2.base=4, ~s2.offset=-1, ~src~0.base=4, ~src~0.offset=0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=6, #NULL!offset=2, old(#NULL!base)=6, old(#NULL!offset)=2] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=6, old(#NULL!offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret8 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L21] havoc ~s1~0; [L22] havoc ~s2~0; [L23] assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; [L23] ~n~0 := #t~nondet6; [L23] havoc #t~nondet6; VAL [#NULL!base=0, #NULL!offset=0, ~n~0=1] [L24] CALL call #t~ret7 := cstrncpy(~s1~0, ~s2~0, ~n~0); VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0] [L2-L19] ~s1 := #in~s1; [L2-L19] ~s2 := #in~s2; [L2-L19] ~n := #in~n; [L4] ~dst~0 := ~s1; [L5] ~src~0 := ~s2; [L6] havoc ~us~0; [L7] havoc ~n2~0; VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0, ~dst~0!base=5, ~dst~0!offset=-2, ~n=1, ~s1!base=5, ~s1!offset=-2, ~s2!base=4, ~s2!offset=-1, ~src~0!base=4, ~src~0!offset=-1] [L8-L17] COND FALSE !(!(~n > 0)) [L9] #t~post0 := ~n; [L9] ~n := #t~post0 - 1; [L9] havoc #t~post0; [L10] #t~post1 := ~dst~0; [L10] ~dst~0 := { base: #t~post1!base, offset: 1 + #t~post1!offset }; [L10] #t~post2 := ~src~0; [L10] ~src~0 := { base: #t~post2!base, offset: 1 + #t~post2!offset }; VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0, #t~post1!base=5, #t~post1!offset=-2, #t~post2!base=4, #t~post2!offset=-1, ~dst~0!base=5, ~dst~0!offset=-1, ~n=0, ~s1!base=5, ~s1!offset=-2, ~s2!base=4, ~s2!offset=-1, ~src~0!base=4, ~src~0!offset=0] [L10] FCALL call #t~mem3 := read~int(#t~post2, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0, #t~post1!base=5, #t~post1!offset=-2, #t~post2!base=4, #t~post2!offset=-1, ~dst~0!base=5, ~dst~0!offset=-1, ~n=0, ~s1!base=5, ~s1!offset=-2, ~s2!base=4, ~s2!offset=-1, ~src~0!base=4, ~src~0!offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=6, #NULL!offset=2, old(#NULL!base)=6, old(#NULL!offset)=2] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=6, old(#NULL!offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret8 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L21] havoc ~s1~0; [L22] havoc ~s2~0; [L23] assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; [L23] ~n~0 := #t~nondet6; [L23] havoc #t~nondet6; VAL [#NULL!base=0, #NULL!offset=0, ~n~0=1] [L24] CALL call #t~ret7 := cstrncpy(~s1~0, ~s2~0, ~n~0); VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0] [L2-L19] ~s1 := #in~s1; [L2-L19] ~s2 := #in~s2; [L2-L19] ~n := #in~n; [L4] ~dst~0 := ~s1; [L5] ~src~0 := ~s2; [L6] havoc ~us~0; [L7] havoc ~n2~0; VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0, ~dst~0!base=5, ~dst~0!offset=-2, ~n=1, ~s1!base=5, ~s1!offset=-2, ~s2!base=4, ~s2!offset=-1, ~src~0!base=4, ~src~0!offset=-1] [L8-L17] COND FALSE !(!(~n > 0)) [L9] #t~post0 := ~n; [L9] ~n := #t~post0 - 1; [L9] havoc #t~post0; [L10] #t~post1 := ~dst~0; [L10] ~dst~0 := { base: #t~post1!base, offset: 1 + #t~post1!offset }; [L10] #t~post2 := ~src~0; [L10] ~src~0 := { base: #t~post2!base, offset: 1 + #t~post2!offset }; VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0, #t~post1!base=5, #t~post1!offset=-2, #t~post2!base=4, #t~post2!offset=-1, ~dst~0!base=5, ~dst~0!offset=-1, ~n=0, ~s1!base=5, ~s1!offset=-2, ~s2!base=4, ~s2!offset=-1, ~src~0!base=4, ~src~0!offset=0] [L10] FCALL call #t~mem3 := read~int(#t~post2, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0, #t~post1!base=5, #t~post1!offset=-2, #t~post2!base=4, #t~post2!offset=-1, ~dst~0!base=5, ~dst~0!offset=-1, ~n=0, ~s1!base=5, ~s1!offset=-2, ~s2!base=4, ~s2!offset=-1, ~src~0!base=4, ~src~0!offset=0] [L21] char *s1; [L22] char *s2; [L23] int n = __VERIFIER_nondet_int(); [L24] CALL cstrncpy(s1, s2, n) VAL [\old(n)=1, s1={5:-2}, s2={4:-1}] [L4] char *dst = s1; [L5] const char *src = s2; [L6] char *us; [L7] int n2; VAL [\old(n)=1, dst={5:-2}, n=1, s1={5:-2}, s1={5:-2}, s2={4:-1}, s2={4:-1}, src={4:-1}] [L8] COND TRUE n > 0 [L9] n-- [L10] dst++ [L10] src++ ----- [2018-11-23 15:56:25,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:56:25 BoogieIcfgContainer [2018-11-23 15:56:25,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 15:56:25,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:56:25,838 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:56:25,839 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:56:25,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:25" (3/4) ... [2018-11-23 15:56:25,841 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=6, |#NULL.offset|=2, |old(#NULL.base)|=6, |old(#NULL.offset)|=2] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=6, |old(#NULL.offset)|=2] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=6, |old(#NULL.offset)|=2] [?] RET #54#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret8 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] havoc ~s1~0.base, ~s1~0.offset;havoc ~s2~0.base, ~s2~0.offset;assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647;~n~0 := #t~nondet6;havoc #t~nondet6; VAL [main_~n~0=1, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret7.base, #t~ret7.offset := cstrncpy(~s1~0.base, ~s1~0.offset, ~s2~0.base, ~s2~0.offset, ~n~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |cstrncpy_#in~n|=1, |cstrncpy_#in~s1.base|=5, |cstrncpy_#in~s1.offset|=(- 2), |cstrncpy_#in~s2.base|=4, |cstrncpy_#in~s2.offset|=(- 1)] [?] ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset;~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset;~n := #in~n;~dst~0.base, ~dst~0.offset := ~s1.base, ~s1.offset;~src~0.base, ~src~0.offset := ~s2.base, ~s2.offset;havoc ~us~0.base, ~us~0.offset;havoc ~n2~0; VAL [cstrncpy_~dst~0.base=5, cstrncpy_~dst~0.offset=(- 2), cstrncpy_~n=1, cstrncpy_~s1.base=5, cstrncpy_~s1.offset=(- 2), cstrncpy_~s2.base=4, cstrncpy_~s2.offset=(- 1), cstrncpy_~src~0.base=4, cstrncpy_~src~0.offset=(- 1), |#NULL.base|=0, |#NULL.offset|=0, |cstrncpy_#in~n|=1, |cstrncpy_#in~s1.base|=5, |cstrncpy_#in~s1.offset|=(- 2), |cstrncpy_#in~s2.base|=4, |cstrncpy_#in~s2.offset|=(- 1)] [?] assume !!(~n > 0);#t~post0 := ~n;~n := #t~post0 - 1;havoc #t~post0;#t~post1.base, #t~post1.offset := ~dst~0.base, ~dst~0.offset;~dst~0.base, ~dst~0.offset := #t~post1.base, 1 + #t~post1.offset;#t~post2.base, #t~post2.offset := ~src~0.base, ~src~0.offset;~src~0.base, ~src~0.offset := #t~post2.base, 1 + #t~post2.offset; VAL [cstrncpy_~dst~0.base=5, cstrncpy_~dst~0.offset=(- 1), cstrncpy_~n=0, cstrncpy_~s1.base=5, cstrncpy_~s1.offset=(- 2), cstrncpy_~s2.base=4, cstrncpy_~s2.offset=(- 1), cstrncpy_~src~0.base=4, cstrncpy_~src~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |cstrncpy_#in~n|=1, |cstrncpy_#in~s1.base|=5, |cstrncpy_#in~s1.offset|=(- 2), |cstrncpy_#in~s2.base|=4, |cstrncpy_#in~s2.offset|=(- 1), |cstrncpy_#t~post1.base|=5, |cstrncpy_#t~post1.offset|=(- 2), |cstrncpy_#t~post2.base|=4, |cstrncpy_#t~post2.offset|=(- 1)] [?] assume !(1 == #valid[#t~post2.base]); VAL [cstrncpy_~dst~0.base=5, cstrncpy_~dst~0.offset=(- 1), cstrncpy_~n=0, cstrncpy_~s1.base=5, cstrncpy_~s1.offset=(- 2), cstrncpy_~s2.base=4, cstrncpy_~s2.offset=(- 1), cstrncpy_~src~0.base=4, cstrncpy_~src~0.offset=0, |#NULL.base|=0, |#NULL.offset|=0, |cstrncpy_#in~n|=1, |cstrncpy_#in~s1.base|=5, |cstrncpy_#in~s1.offset|=(- 2), |cstrncpy_#in~s2.base|=4, |cstrncpy_#in~s2.offset|=(- 1), |cstrncpy_#t~post1.base|=5, |cstrncpy_#t~post1.offset|=(- 2), |cstrncpy_#t~post2.base|=4, |cstrncpy_#t~post2.offset|=(- 1)] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=6, #NULL.offset=2, old(#NULL.base)=6, old(#NULL.offset)=2] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=6, old(#NULL.offset)=2] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=6, old(#NULL.offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret8 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L21] havoc ~s1~0.base, ~s1~0.offset; [L22] havoc ~s2~0.base, ~s2~0.offset; [L23] assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; [L23] ~n~0 := #t~nondet6; [L23] havoc #t~nondet6; VAL [#NULL.base=0, #NULL.offset=0, ~n~0=1] [L24] CALL call #t~ret7.base, #t~ret7.offset := cstrncpy(~s1~0.base, ~s1~0.offset, ~s2~0.base, ~s2~0.offset, ~n~0); VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0] [L2-L19] ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset; [L2-L19] ~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset; [L2-L19] ~n := #in~n; [L4] ~dst~0.base, ~dst~0.offset := ~s1.base, ~s1.offset; [L5] ~src~0.base, ~src~0.offset := ~s2.base, ~s2.offset; [L6] havoc ~us~0.base, ~us~0.offset; [L7] havoc ~n2~0; VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0, ~dst~0.base=5, ~dst~0.offset=-2, ~n=1, ~s1.base=5, ~s1.offset=-2, ~s2.base=4, ~s2.offset=-1, ~src~0.base=4, ~src~0.offset=-1] [L8-L17] assume !!(~n > 0); [L9] #t~post0 := ~n; [L9] ~n := #t~post0 - 1; [L9] havoc #t~post0; [L10] #t~post1.base, #t~post1.offset := ~dst~0.base, ~dst~0.offset; [L10] ~dst~0.base, ~dst~0.offset := #t~post1.base, 1 + #t~post1.offset; [L10] #t~post2.base, #t~post2.offset := ~src~0.base, ~src~0.offset; [L10] ~src~0.base, ~src~0.offset := #t~post2.base, 1 + #t~post2.offset; VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0, #t~post1.base=5, #t~post1.offset=-2, #t~post2.base=4, #t~post2.offset=-1, ~dst~0.base=5, ~dst~0.offset=-1, ~n=0, ~s1.base=5, ~s1.offset=-2, ~s2.base=4, ~s2.offset=-1, ~src~0.base=4, ~src~0.offset=0] [L10] call #t~mem3 := read~int(#t~post2.base, #t~post2.offset, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0, #t~post1.base=5, #t~post1.offset=-2, #t~post2.base=4, #t~post2.offset=-1, ~dst~0.base=5, ~dst~0.offset=-1, ~n=0, ~s1.base=5, ~s1.offset=-2, ~s2.base=4, ~s2.offset=-1, ~src~0.base=4, ~src~0.offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=6, #NULL.offset=2, old(#NULL.base)=6, old(#NULL.offset)=2] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=6, old(#NULL.offset)=2] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=6, old(#NULL.offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret8 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L21] havoc ~s1~0.base, ~s1~0.offset; [L22] havoc ~s2~0.base, ~s2~0.offset; [L23] assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; [L23] ~n~0 := #t~nondet6; [L23] havoc #t~nondet6; VAL [#NULL.base=0, #NULL.offset=0, ~n~0=1] [L24] CALL call #t~ret7.base, #t~ret7.offset := cstrncpy(~s1~0.base, ~s1~0.offset, ~s2~0.base, ~s2~0.offset, ~n~0); VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0] [L2-L19] ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset; [L2-L19] ~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset; [L2-L19] ~n := #in~n; [L4] ~dst~0.base, ~dst~0.offset := ~s1.base, ~s1.offset; [L5] ~src~0.base, ~src~0.offset := ~s2.base, ~s2.offset; [L6] havoc ~us~0.base, ~us~0.offset; [L7] havoc ~n2~0; VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0, ~dst~0.base=5, ~dst~0.offset=-2, ~n=1, ~s1.base=5, ~s1.offset=-2, ~s2.base=4, ~s2.offset=-1, ~src~0.base=4, ~src~0.offset=-1] [L8-L17] assume !!(~n > 0); [L9] #t~post0 := ~n; [L9] ~n := #t~post0 - 1; [L9] havoc #t~post0; [L10] #t~post1.base, #t~post1.offset := ~dst~0.base, ~dst~0.offset; [L10] ~dst~0.base, ~dst~0.offset := #t~post1.base, 1 + #t~post1.offset; [L10] #t~post2.base, #t~post2.offset := ~src~0.base, ~src~0.offset; [L10] ~src~0.base, ~src~0.offset := #t~post2.base, 1 + #t~post2.offset; VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0, #t~post1.base=5, #t~post1.offset=-2, #t~post2.base=4, #t~post2.offset=-1, ~dst~0.base=5, ~dst~0.offset=-1, ~n=0, ~s1.base=5, ~s1.offset=-2, ~s2.base=4, ~s2.offset=-1, ~src~0.base=4, ~src~0.offset=0] [L10] call #t~mem3 := read~int(#t~post2.base, #t~post2.offset, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~n=1, #in~s1.base=5, #in~s1.offset=-2, #in~s2.base=4, #in~s2.offset=-1, #NULL.base=0, #NULL.offset=0, #t~post1.base=5, #t~post1.offset=-2, #t~post2.base=4, #t~post2.offset=-1, ~dst~0.base=5, ~dst~0.offset=-1, ~n=0, ~s1.base=5, ~s1.offset=-2, ~s2.base=4, ~s2.offset=-1, ~src~0.base=4, ~src~0.offset=0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=6, #NULL!offset=2, old(#NULL!base)=6, old(#NULL!offset)=2] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=6, old(#NULL!offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret8 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L21] havoc ~s1~0; [L22] havoc ~s2~0; [L23] assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; [L23] ~n~0 := #t~nondet6; [L23] havoc #t~nondet6; VAL [#NULL!base=0, #NULL!offset=0, ~n~0=1] [L24] CALL call #t~ret7 := cstrncpy(~s1~0, ~s2~0, ~n~0); VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0] [L2-L19] ~s1 := #in~s1; [L2-L19] ~s2 := #in~s2; [L2-L19] ~n := #in~n; [L4] ~dst~0 := ~s1; [L5] ~src~0 := ~s2; [L6] havoc ~us~0; [L7] havoc ~n2~0; VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0, ~dst~0!base=5, ~dst~0!offset=-2, ~n=1, ~s1!base=5, ~s1!offset=-2, ~s2!base=4, ~s2!offset=-1, ~src~0!base=4, ~src~0!offset=-1] [L8-L17] COND FALSE !(!(~n > 0)) [L9] #t~post0 := ~n; [L9] ~n := #t~post0 - 1; [L9] havoc #t~post0; [L10] #t~post1 := ~dst~0; [L10] ~dst~0 := { base: #t~post1!base, offset: 1 + #t~post1!offset }; [L10] #t~post2 := ~src~0; [L10] ~src~0 := { base: #t~post2!base, offset: 1 + #t~post2!offset }; VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0, #t~post1!base=5, #t~post1!offset=-2, #t~post2!base=4, #t~post2!offset=-1, ~dst~0!base=5, ~dst~0!offset=-1, ~n=0, ~s1!base=5, ~s1!offset=-2, ~s2!base=4, ~s2!offset=-1, ~src~0!base=4, ~src~0!offset=0] [L10] FCALL call #t~mem3 := read~int(#t~post2, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0, #t~post1!base=5, #t~post1!offset=-2, #t~post2!base=4, #t~post2!offset=-1, ~dst~0!base=5, ~dst~0!offset=-1, ~n=0, ~s1!base=5, ~s1!offset=-2, ~s2!base=4, ~s2!offset=-1, ~src~0!base=4, ~src~0!offset=0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=6, #NULL!offset=2, old(#NULL!base)=6, old(#NULL!offset)=2] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=6, old(#NULL!offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret8 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L21] havoc ~s1~0; [L22] havoc ~s2~0; [L23] assume -2147483648 <= #t~nondet6 && #t~nondet6 <= 2147483647; [L23] ~n~0 := #t~nondet6; [L23] havoc #t~nondet6; VAL [#NULL!base=0, #NULL!offset=0, ~n~0=1] [L24] CALL call #t~ret7 := cstrncpy(~s1~0, ~s2~0, ~n~0); VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0] [L2-L19] ~s1 := #in~s1; [L2-L19] ~s2 := #in~s2; [L2-L19] ~n := #in~n; [L4] ~dst~0 := ~s1; [L5] ~src~0 := ~s2; [L6] havoc ~us~0; [L7] havoc ~n2~0; VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0, ~dst~0!base=5, ~dst~0!offset=-2, ~n=1, ~s1!base=5, ~s1!offset=-2, ~s2!base=4, ~s2!offset=-1, ~src~0!base=4, ~src~0!offset=-1] [L8-L17] COND FALSE !(!(~n > 0)) [L9] #t~post0 := ~n; [L9] ~n := #t~post0 - 1; [L9] havoc #t~post0; [L10] #t~post1 := ~dst~0; [L10] ~dst~0 := { base: #t~post1!base, offset: 1 + #t~post1!offset }; [L10] #t~post2 := ~src~0; [L10] ~src~0 := { base: #t~post2!base, offset: 1 + #t~post2!offset }; VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0, #t~post1!base=5, #t~post1!offset=-2, #t~post2!base=4, #t~post2!offset=-1, ~dst~0!base=5, ~dst~0!offset=-1, ~n=0, ~s1!base=5, ~s1!offset=-2, ~s2!base=4, ~s2!offset=-1, ~src~0!base=4, ~src~0!offset=0] [L10] FCALL call #t~mem3 := read~int(#t~post2, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~n=1, #in~s1!base=5, #in~s1!offset=-2, #in~s2!base=4, #in~s2!offset=-1, #NULL!base=0, #NULL!offset=0, #t~post1!base=5, #t~post1!offset=-2, #t~post2!base=4, #t~post2!offset=-1, ~dst~0!base=5, ~dst~0!offset=-1, ~n=0, ~s1!base=5, ~s1!offset=-2, ~s2!base=4, ~s2!offset=-1, ~src~0!base=4, ~src~0!offset=0] [L21] char *s1; [L22] char *s2; [L23] int n = __VERIFIER_nondet_int(); [L24] CALL cstrncpy(s1, s2, n) VAL [\old(n)=1, s1={5:-2}, s2={4:-1}] [L4] char *dst = s1; [L5] const char *src = s2; [L6] char *us; [L7] int n2; VAL [\old(n)=1, dst={5:-2}, n=1, s1={5:-2}, s1={5:-2}, s2={4:-1}, s2={4:-1}, src={4:-1}] [L8] COND TRUE n > 0 [L9] n-- [L10] dst++ [L10] src++ ----- [2018-11-23 15:56:25,880 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5218a4dd-2fe0-431b-b085-b6374bbc282e/bin-2019/uautomizer/witness.graphml [2018-11-23 15:56:25,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:56:25,881 INFO L168 Benchmark]: Toolchain (without parser) took 636.60 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -108.2 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2018-11-23 15:56:25,882 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-11-23 15:56:25,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.89 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:56:25,882 INFO L168 Benchmark]: Boogie Preprocessor took 22.00 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:56:25,883 INFO L168 Benchmark]: RCFGBuilder took 209.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:56:25,883 INFO L168 Benchmark]: TraceAbstraction took 187.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-11-23 15:56:25,884 INFO L168 Benchmark]: Witness Printer took 41.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:56:25,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 172.89 ms. Allocated memory is still 1.0 GB. Free memory was 958.0 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.00 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 209.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -147.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 187.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * Witness Printer took 41.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L21] char *s1; [L22] char *s2; [L23] int n = __VERIFIER_nondet_int(); [L24] CALL cstrncpy(s1, s2, n) VAL [\old(n)=1, s1={5:-2}, s2={4:-1}] [L4] char *dst = s1; [L5] const char *src = s2; [L6] char *us; [L7] int n2; VAL [\old(n)=1, dst={5:-2}, n=1, s1={5:-2}, s1={5:-2}, s2={4:-1}, s2={4:-1}, src={4:-1}] [L8] COND TRUE n > 0 [L9] n-- [L10] dst++ [L10] src++ - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 locations, 7 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=31occurred 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, 10 NumberOfCodeBlocks, 10 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...