./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcat_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_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/bin-2019/uautomizer/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/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 8bca29efe4e2caa04afbd06c4ca0de4d513af778 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:21:33,227 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:21:33,228 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:21:33,236 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:21:33,236 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:21:33,237 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:21:33,238 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:21:33,239 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:21:33,240 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:21:33,241 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:21:33,242 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:21:33,242 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:21:33,243 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:21:33,244 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:21:33,245 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:21:33,245 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:21:33,246 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:21:33,247 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:21:33,249 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:21:33,250 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:21:33,251 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:21:33,252 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:21:33,254 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:21:33,254 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:21:33,254 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:21:33,255 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:21:33,256 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:21:33,256 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:21:33,257 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:21:33,258 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:21:33,258 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:21:33,259 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:21:33,259 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:21:33,259 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:21:33,260 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:21:33,261 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:21:33,261 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/bin-2019/uautomizer/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-11-23 13:21:33,272 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:21:33,272 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:21:33,273 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:21:33,273 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:21:33,274 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:21:33,274 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:21:33,274 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:21:33,274 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:21:33,275 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:21:33,275 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 13:21:33,275 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:21:33,275 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:21:33,275 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:21:33,275 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-23 13:21:33,276 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-23 13:21:33,276 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-23 13:21:33,276 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:21:33,276 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:21:33,276 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:21:33,276 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:21:33,277 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:21:33,277 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:21:33,277 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:21:33,277 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:21:33,277 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:21:33,277 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:21:33,278 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:21:33,278 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:21:33,278 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_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/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 -> 8bca29efe4e2caa04afbd06c4ca0de4d513af778 [2018-11-23 13:21:33,305 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:21:33,316 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:21:33,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:21:33,319 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:21:33,320 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:21:33,320 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe_false-valid-deref.i [2018-11-23 13:21:33,363 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/bin-2019/uautomizer/data/0e731ea58/3b4ddc67936e4eab8025188cc4b54aa5/FLAG5e8cc7162 [2018-11-23 13:21:33,687 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:21:33,687 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/sv-benchmarks/c/array-memsafety/cstrcat_unsafe_false-valid-deref.i [2018-11-23 13:21:33,691 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/bin-2019/uautomizer/data/0e731ea58/3b4ddc67936e4eab8025188cc4b54aa5/FLAG5e8cc7162 [2018-11-23 13:21:34,121 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/bin-2019/uautomizer/data/0e731ea58/3b4ddc67936e4eab8025188cc4b54aa5 [2018-11-23 13:21:34,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:21:34,124 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-23 13:21:34,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:21:34,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:21:34,127 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:21:34,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:21:34" (1/1) ... [2018-11-23 13:21:34,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bf86f17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:34, skipping insertion in model container [2018-11-23 13:21:34,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:21:34" (1/1) ... [2018-11-23 13:21:34,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:21:34,147 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:21:34,248 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:21:34,254 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:21:34,262 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:21:34,270 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:21:34,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:34 WrapperNode [2018-11-23 13:21:34,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:21:34,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:21:34,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:21:34,271 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:21:34,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:34" (1/1) ... [2018-11-23 13:21:34,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:34" (1/1) ... [2018-11-23 13:21:34,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:34" (1/1) ... [2018-11-23 13:21:34,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:34" (1/1) ... [2018-11-23 13:21:34,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:34" (1/1) ... [2018-11-23 13:21:34,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:34" (1/1) ... [2018-11-23 13:21:34,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:34" (1/1) ... [2018-11-23 13:21:34,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:21:34,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:21:34,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:21:34,300 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:21:34,300 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/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 13:21:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:21:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:21:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrcat [2018-11-23 13:21:34,383 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:21:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure cstrcat [2018-11-23 13:21:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 13:21:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 13:21:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:21:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:21:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:21:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 13:21:34,525 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:21:34,526 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 13:21:34,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:21:34 BoogieIcfgContainer [2018-11-23 13:21:34,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:21:34,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:21:34,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:21:34,529 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:21:34,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:21:34" (1/3) ... [2018-11-23 13:21:34,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284bb722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:21:34, skipping insertion in model container [2018-11-23 13:21:34,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:34" (2/3) ... [2018-11-23 13:21:34,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@284bb722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:21:34, skipping insertion in model container [2018-11-23 13:21:34,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:21:34" (3/3) ... [2018-11-23 13:21:34,531 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrcat_unsafe_false-valid-deref.i [2018-11-23 13:21:34,538 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:21:34,543 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-11-23 13:21:34,553 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2018-11-23 13:21:34,571 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:21:34,572 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:21:34,572 INFO L383 AbstractCegarLoop]: Hoare is false [2018-11-23 13:21:34,572 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:21:34,572 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:21:34,572 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:21:34,572 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:21:34,572 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:21:34,573 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:21:34,585 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-23 13:21:34,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 13:21:34,593 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:21:34,594 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:21:34,596 INFO L423 AbstractCegarLoop]: === Iteration 1 === [cstrcatErr5REQUIRES_VIOLATION, cstrcatErr0REQUIRES_VIOLATION, cstrcatErr4REQUIRES_VIOLATION, cstrcatErr2REQUIRES_VIOLATION, cstrcatErr3REQUIRES_VIOLATION, cstrcatErr1REQUIRES_VIOLATION, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2018-11-23 13:21:34,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:21:34,602 INFO L82 PathProgramCache]: Analyzing trace with hash 543632158, now seen corresponding path program 1 times [2018-11-23 13:21:34,603 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:21:34,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:21:34,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:21:34,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:21:34,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:21:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:21:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:21:34,682 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=7, |#NULL.offset|=2, |old(#NULL.base)|=7, |old(#NULL.offset)|=2] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=7, |old(#NULL.offset)|=2] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=7, |old(#NULL.offset)|=2] [?] RET #47#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret6 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] havoc ~s1~0.base, ~s1~0.offset;havoc ~s2~0.base, ~s2~0.offset; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret5.base, #t~ret5.offset := cstrcat(~s1~0.base, ~s1~0.offset, ~s2~0.base, ~s2~0.offset); VAL [|#NULL.base|=0, |#NULL.offset|=0, |cstrcat_#in~s1.base|=5, |cstrcat_#in~s1.offset|=6, |cstrcat_#in~s2.base|=8, |cstrcat_#in~s2.offset|=3] [?] ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset;~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset;~s~0.base, ~s~0.offset := ~s1.base, ~s1.offset; VAL [cstrcat_~s1.base=5, cstrcat_~s1.offset=6, cstrcat_~s2.base=8, cstrcat_~s2.offset=3, cstrcat_~s~0.base=5, cstrcat_~s~0.offset=6, |#NULL.base|=0, |#NULL.offset|=0, |cstrcat_#in~s1.base|=5, |cstrcat_#in~s1.offset|=6, |cstrcat_#in~s2.base|=8, |cstrcat_#in~s2.offset|=3] [?] assume !(1 == #valid[~s~0.base]); VAL [cstrcat_~s1.base=5, cstrcat_~s1.offset=6, cstrcat_~s2.base=8, cstrcat_~s2.offset=3, cstrcat_~s~0.base=5, cstrcat_~s~0.offset=6, |#NULL.base|=0, |#NULL.offset|=0, |cstrcat_#in~s1.base|=5, |cstrcat_#in~s1.offset|=6, |cstrcat_#in~s2.base|=8, |cstrcat_#in~s2.offset|=3] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=7, #NULL.offset=2, old(#NULL.base)=7, old(#NULL.offset)=2] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=7, old(#NULL.offset)=2] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=7, old(#NULL.offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L11] havoc ~s1~0.base, ~s1~0.offset; [L12] havoc ~s2~0.base, ~s2~0.offset; VAL [#NULL.base=0, #NULL.offset=0] [L13] CALL call #t~ret5.base, #t~ret5.offset := cstrcat(~s1~0.base, ~s1~0.offset, ~s2~0.base, ~s2~0.offset); VAL [#in~s1.base=5, #in~s1.offset=6, #in~s2.base=8, #in~s2.offset=3, #NULL.base=0, #NULL.offset=0] [L1-L9] ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset; [L1-L9] ~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset; [L3] ~s~0.base, ~s~0.offset := ~s1.base, ~s1.offset; VAL [#in~s1.base=5, #in~s1.offset=6, #in~s2.base=8, #in~s2.offset=3, #NULL.base=0, #NULL.offset=0, ~s1.base=5, ~s1.offset=6, ~s2.base=8, ~s2.offset=3, ~s~0.base=5, ~s~0.offset=6] [L4] call #t~mem0 := read~int(~s~0.base, ~s~0.offset, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~s1.base=5, #in~s1.offset=6, #in~s2.base=8, #in~s2.offset=3, #NULL.base=0, #NULL.offset=0, ~s1.base=5, ~s1.offset=6, ~s2.base=8, ~s2.offset=3, ~s~0.base=5, ~s~0.offset=6] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=7, #NULL.offset=2, old(#NULL.base)=7, old(#NULL.offset)=2] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=7, old(#NULL.offset)=2] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=7, old(#NULL.offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L11] havoc ~s1~0.base, ~s1~0.offset; [L12] havoc ~s2~0.base, ~s2~0.offset; VAL [#NULL.base=0, #NULL.offset=0] [L13] CALL call #t~ret5.base, #t~ret5.offset := cstrcat(~s1~0.base, ~s1~0.offset, ~s2~0.base, ~s2~0.offset); VAL [#in~s1.base=5, #in~s1.offset=6, #in~s2.base=8, #in~s2.offset=3, #NULL.base=0, #NULL.offset=0] [L1-L9] ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset; [L1-L9] ~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset; [L3] ~s~0.base, ~s~0.offset := ~s1.base, ~s1.offset; VAL [#in~s1.base=5, #in~s1.offset=6, #in~s2.base=8, #in~s2.offset=3, #NULL.base=0, #NULL.offset=0, ~s1.base=5, ~s1.offset=6, ~s2.base=8, ~s2.offset=3, ~s~0.base=5, ~s~0.offset=6] [L4] call #t~mem0 := read~int(~s~0.base, ~s~0.offset, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~s1.base=5, #in~s1.offset=6, #in~s2.base=8, #in~s2.offset=3, #NULL.base=0, #NULL.offset=0, ~s1.base=5, ~s1.offset=6, ~s2.base=8, ~s2.offset=3, ~s~0.base=5, ~s~0.offset=6] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=7, #NULL!offset=2, old(#NULL!base)=7, old(#NULL!offset)=2] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=7, old(#NULL!offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L11] havoc ~s1~0; [L12] havoc ~s2~0; VAL [#NULL!base=0, #NULL!offset=0] [L13] CALL call #t~ret5 := cstrcat(~s1~0, ~s2~0); VAL [#in~s1!base=5, #in~s1!offset=6, #in~s2!base=8, #in~s2!offset=3, #NULL!base=0, #NULL!offset=0] [L1-L9] ~s1 := #in~s1; [L1-L9] ~s2 := #in~s2; [L3] ~s~0 := ~s1; VAL [#in~s1!base=5, #in~s1!offset=6, #in~s2!base=8, #in~s2!offset=3, #NULL!base=0, #NULL!offset=0, ~s1!base=5, ~s1!offset=6, ~s2!base=8, ~s2!offset=3, ~s~0!base=5, ~s~0!offset=6] [L4] FCALL call #t~mem0 := read~int(~s~0, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~s1!base=5, #in~s1!offset=6, #in~s2!base=8, #in~s2!offset=3, #NULL!base=0, #NULL!offset=0, ~s1!base=5, ~s1!offset=6, ~s2!base=8, ~s2!offset=3, ~s~0!base=5, ~s~0!offset=6] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=7, #NULL!offset=2, old(#NULL!base)=7, old(#NULL!offset)=2] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=7, old(#NULL!offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L11] havoc ~s1~0; [L12] havoc ~s2~0; VAL [#NULL!base=0, #NULL!offset=0] [L13] CALL call #t~ret5 := cstrcat(~s1~0, ~s2~0); VAL [#in~s1!base=5, #in~s1!offset=6, #in~s2!base=8, #in~s2!offset=3, #NULL!base=0, #NULL!offset=0] [L1-L9] ~s1 := #in~s1; [L1-L9] ~s2 := #in~s2; [L3] ~s~0 := ~s1; VAL [#in~s1!base=5, #in~s1!offset=6, #in~s2!base=8, #in~s2!offset=3, #NULL!base=0, #NULL!offset=0, ~s1!base=5, ~s1!offset=6, ~s2!base=8, ~s2!offset=3, ~s~0!base=5, ~s~0!offset=6] [L4] FCALL call #t~mem0 := read~int(~s~0, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~s1!base=5, #in~s1!offset=6, #in~s2!base=8, #in~s2!offset=3, #NULL!base=0, #NULL!offset=0, ~s1!base=5, ~s1!offset=6, ~s2!base=8, ~s2!offset=3, ~s~0!base=5, ~s~0!offset=6] [L11] char *s1; [L12] char *s2; [L13] CALL cstrcat(s1, s2) VAL [s1={5:6}, s2={8:3}] [L3] char *s = s1; VAL [s={5:6}, s1={5:6}, s1={5:6}, s2={8:3}, s2={8:3}] [L4] \read(*s) ----- [2018-11-23 13:21:34,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:21:34 BoogieIcfgContainer [2018-11-23 13:21:34,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:21:34,701 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:21:34,701 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:21:34,701 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:21:34,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:21:34" (3/4) ... [2018-11-23 13:21:34,703 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|=7, |#NULL.offset|=2, |old(#NULL.base)|=7, |old(#NULL.offset)|=2] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=7, |old(#NULL.offset)|=2] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=7, |old(#NULL.offset)|=2] [?] RET #47#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret6 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] havoc ~s1~0.base, ~s1~0.offset;havoc ~s2~0.base, ~s2~0.offset; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret5.base, #t~ret5.offset := cstrcat(~s1~0.base, ~s1~0.offset, ~s2~0.base, ~s2~0.offset); VAL [|#NULL.base|=0, |#NULL.offset|=0, |cstrcat_#in~s1.base|=5, |cstrcat_#in~s1.offset|=6, |cstrcat_#in~s2.base|=8, |cstrcat_#in~s2.offset|=3] [?] ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset;~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset;~s~0.base, ~s~0.offset := ~s1.base, ~s1.offset; VAL [cstrcat_~s1.base=5, cstrcat_~s1.offset=6, cstrcat_~s2.base=8, cstrcat_~s2.offset=3, cstrcat_~s~0.base=5, cstrcat_~s~0.offset=6, |#NULL.base|=0, |#NULL.offset|=0, |cstrcat_#in~s1.base|=5, |cstrcat_#in~s1.offset|=6, |cstrcat_#in~s2.base|=8, |cstrcat_#in~s2.offset|=3] [?] assume !(1 == #valid[~s~0.base]); VAL [cstrcat_~s1.base=5, cstrcat_~s1.offset=6, cstrcat_~s2.base=8, cstrcat_~s2.offset=3, cstrcat_~s~0.base=5, cstrcat_~s~0.offset=6, |#NULL.base|=0, |#NULL.offset|=0, |cstrcat_#in~s1.base|=5, |cstrcat_#in~s1.offset|=6, |cstrcat_#in~s2.base|=8, |cstrcat_#in~s2.offset|=3] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=7, #NULL.offset=2, old(#NULL.base)=7, old(#NULL.offset)=2] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=7, old(#NULL.offset)=2] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=7, old(#NULL.offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L11] havoc ~s1~0.base, ~s1~0.offset; [L12] havoc ~s2~0.base, ~s2~0.offset; VAL [#NULL.base=0, #NULL.offset=0] [L13] CALL call #t~ret5.base, #t~ret5.offset := cstrcat(~s1~0.base, ~s1~0.offset, ~s2~0.base, ~s2~0.offset); VAL [#in~s1.base=5, #in~s1.offset=6, #in~s2.base=8, #in~s2.offset=3, #NULL.base=0, #NULL.offset=0] [L1-L9] ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset; [L1-L9] ~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset; [L3] ~s~0.base, ~s~0.offset := ~s1.base, ~s1.offset; VAL [#in~s1.base=5, #in~s1.offset=6, #in~s2.base=8, #in~s2.offset=3, #NULL.base=0, #NULL.offset=0, ~s1.base=5, ~s1.offset=6, ~s2.base=8, ~s2.offset=3, ~s~0.base=5, ~s~0.offset=6] [L4] call #t~mem0 := read~int(~s~0.base, ~s~0.offset, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~s1.base=5, #in~s1.offset=6, #in~s2.base=8, #in~s2.offset=3, #NULL.base=0, #NULL.offset=0, ~s1.base=5, ~s1.offset=6, ~s2.base=8, ~s2.offset=3, ~s~0.base=5, ~s~0.offset=6] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=7, #NULL.offset=2, old(#NULL.base)=7, old(#NULL.offset)=2] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=7, old(#NULL.offset)=2] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=7, old(#NULL.offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L11] havoc ~s1~0.base, ~s1~0.offset; [L12] havoc ~s2~0.base, ~s2~0.offset; VAL [#NULL.base=0, #NULL.offset=0] [L13] CALL call #t~ret5.base, #t~ret5.offset := cstrcat(~s1~0.base, ~s1~0.offset, ~s2~0.base, ~s2~0.offset); VAL [#in~s1.base=5, #in~s1.offset=6, #in~s2.base=8, #in~s2.offset=3, #NULL.base=0, #NULL.offset=0] [L1-L9] ~s1.base, ~s1.offset := #in~s1.base, #in~s1.offset; [L1-L9] ~s2.base, ~s2.offset := #in~s2.base, #in~s2.offset; [L3] ~s~0.base, ~s~0.offset := ~s1.base, ~s1.offset; VAL [#in~s1.base=5, #in~s1.offset=6, #in~s2.base=8, #in~s2.offset=3, #NULL.base=0, #NULL.offset=0, ~s1.base=5, ~s1.offset=6, ~s2.base=8, ~s2.offset=3, ~s~0.base=5, ~s~0.offset=6] [L4] call #t~mem0 := read~int(~s~0.base, ~s~0.offset, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~s1.base=5, #in~s1.offset=6, #in~s2.base=8, #in~s2.offset=3, #NULL.base=0, #NULL.offset=0, ~s1.base=5, ~s1.offset=6, ~s2.base=8, ~s2.offset=3, ~s~0.base=5, ~s~0.offset=6] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=7, #NULL!offset=2, old(#NULL!base)=7, old(#NULL!offset)=2] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=7, old(#NULL!offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L11] havoc ~s1~0; [L12] havoc ~s2~0; VAL [#NULL!base=0, #NULL!offset=0] [L13] CALL call #t~ret5 := cstrcat(~s1~0, ~s2~0); VAL [#in~s1!base=5, #in~s1!offset=6, #in~s2!base=8, #in~s2!offset=3, #NULL!base=0, #NULL!offset=0] [L1-L9] ~s1 := #in~s1; [L1-L9] ~s2 := #in~s2; [L3] ~s~0 := ~s1; VAL [#in~s1!base=5, #in~s1!offset=6, #in~s2!base=8, #in~s2!offset=3, #NULL!base=0, #NULL!offset=0, ~s1!base=5, ~s1!offset=6, ~s2!base=8, ~s2!offset=3, ~s~0!base=5, ~s~0!offset=6] [L4] FCALL call #t~mem0 := read~int(~s~0, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~s1!base=5, #in~s1!offset=6, #in~s2!base=8, #in~s2!offset=3, #NULL!base=0, #NULL!offset=0, ~s1!base=5, ~s1!offset=6, ~s2!base=8, ~s2!offset=3, ~s~0!base=5, ~s~0!offset=6] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=7, #NULL!offset=2, old(#NULL!base)=7, old(#NULL!offset)=2] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=7, old(#NULL!offset)=2] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L11] havoc ~s1~0; [L12] havoc ~s2~0; VAL [#NULL!base=0, #NULL!offset=0] [L13] CALL call #t~ret5 := cstrcat(~s1~0, ~s2~0); VAL [#in~s1!base=5, #in~s1!offset=6, #in~s2!base=8, #in~s2!offset=3, #NULL!base=0, #NULL!offset=0] [L1-L9] ~s1 := #in~s1; [L1-L9] ~s2 := #in~s2; [L3] ~s~0 := ~s1; VAL [#in~s1!base=5, #in~s1!offset=6, #in~s2!base=8, #in~s2!offset=3, #NULL!base=0, #NULL!offset=0, ~s1!base=5, ~s1!offset=6, ~s2!base=8, ~s2!offset=3, ~s~0!base=5, ~s~0!offset=6] [L4] FCALL call #t~mem0 := read~int(~s~0, 1); [?] requires 1 == #valid[#ptr.base]; VAL [#in~s1!base=5, #in~s1!offset=6, #in~s2!base=8, #in~s2!offset=3, #NULL!base=0, #NULL!offset=0, ~s1!base=5, ~s1!offset=6, ~s2!base=8, ~s2!offset=3, ~s~0!base=5, ~s~0!offset=6] [L11] char *s1; [L12] char *s2; [L13] CALL cstrcat(s1, s2) VAL [s1={5:6}, s2={8:3}] [L3] char *s = s1; VAL [s={5:6}, s1={5:6}, s1={5:6}, s2={8:3}, s2={8:3}] [L4] \read(*s) ----- [2018-11-23 13:21:34,728 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7b4d49f6-b78c-48d1-a677-334d4bb4a7c0/bin-2019/uautomizer/witness.graphml [2018-11-23 13:21:34,728 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:21:34,729 INFO L168 Benchmark]: Toolchain (without parser) took 605.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:21:34,730 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:21:34,730 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.52 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:21:34,730 INFO L168 Benchmark]: Boogie Preprocessor took 27.86 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:21:34,731 INFO L168 Benchmark]: RCFGBuilder took 226.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-23 13:21:34,731 INFO L168 Benchmark]: TraceAbstraction took 173.79 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-11-23 13:21:34,732 INFO L168 Benchmark]: Witness Printer took 27.62 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 13:21:34,734 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 146.52 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.86 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 226.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 173.79 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Witness Printer took 27.62 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L11] char *s1; [L12] char *s2; [L13] CALL cstrcat(s1, s2) VAL [s1={5:6}, s2={8:3}] [L3] char *s = s1; VAL [s={5:6}, s1={5:6}, s1={5:6}, s2={8:3}, s2={8:3}] [L4] \read(*s) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 29 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=29occurred 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, 9 NumberOfCodeBlocks, 9 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...