./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrncat_unsafe_false-valid-deref.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrncat_unsafe_false-valid-deref.i -s /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ead5f421f9d611f4b4a72e6a7fba37c936b2240c .................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:39:09,260 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:39:09,261 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:39:09,268 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:39:09,268 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:39:09,269 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:39:09,270 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:39:09,271 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:39:09,272 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:39:09,273 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:39:09,273 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:39:09,273 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:39:09,274 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:39:09,275 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:39:09,276 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:39:09,276 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:39:09,277 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:39:09,278 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:39:09,279 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:39:09,280 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:39:09,281 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:39:09,282 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:39:09,284 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:39:09,284 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:39:09,284 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:39:09,285 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:39:09,285 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:39:09,286 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:39:09,287 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:39:09,287 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:39:09,288 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:39:09,288 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:39:09,288 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:39:09,288 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:39:09,289 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:39:09,290 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:39:09,290 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-11-10 04:39:09,300 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:39:09,300 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:39:09,301 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 04:39:09,301 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 04:39:09,301 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:39:09,302 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:39:09,302 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 04:39:09,302 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:39:09,302 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:39:09,302 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:39:09,302 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-10 04:39:09,302 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-10 04:39:09,303 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-10 04:39:09,303 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:39:09,303 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:39:09,303 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 04:39:09,303 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 04:39:09,303 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:39:09,304 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:39:09,304 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 04:39:09,304 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:39:09,304 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:39:09,304 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 04:39:09,304 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:39:09,304 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_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak 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 -> Kojak 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 -> ead5f421f9d611f4b4a72e6a7fba37c936b2240c [2018-11-10 04:39:09,329 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:39:09,338 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:39:09,341 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:39:09,342 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:39:09,342 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:39:09,343 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/cstrncat_unsafe_false-valid-deref.i [2018-11-10 04:39:09,383 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak/data/9361cceb5/817facb734884c2199031ec09ba8a892/FLAGd1690cf0c [2018-11-10 04:39:09,705 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:39:09,705 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/sv-benchmarks/c/array-memsafety/cstrncat_unsafe_false-valid-deref.i [2018-11-10 04:39:09,710 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak/data/9361cceb5/817facb734884c2199031ec09ba8a892/FLAGd1690cf0c [2018-11-10 04:39:09,722 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak/data/9361cceb5/817facb734884c2199031ec09ba8a892 [2018-11-10 04:39:09,725 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:39:09,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:39:09,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:39:09,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:39:09,730 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:39:09,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:39:09" (1/1) ... [2018-11-10 04:39:09,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d995a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:39:09, skipping insertion in model container [2018-11-10 04:39:09,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:39:09" (1/1) ... [2018-11-10 04:39:09,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:39:09,758 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:39:09,882 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:39:09,891 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:39:09,903 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:39:09,915 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:39:09,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:39:09 WrapperNode [2018-11-10 04:39:09,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:39:09,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:39:09,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:39:09,919 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:39:09,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:39:09" (1/1) ... [2018-11-10 04:39:09,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:39:09" (1/1) ... [2018-11-10 04:39:09,950 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:39:09,951 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:39:09,951 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:39:09,951 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:39:09,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:39:09" (1/1) ... [2018-11-10 04:39:09,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:39:09" (1/1) ... [2018-11-10 04:39:09,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:39:09" (1/1) ... [2018-11-10 04:39:09,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:39:09" (1/1) ... [2018-11-10 04:39:09,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:39:09" (1/1) ... [2018-11-10 04:39:09,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:39:09" (1/1) ... [2018-11-10 04:39:09,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:39:09" (1/1) ... [2018-11-10 04:39:09,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:39:09,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:39:09,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:39:09,970 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:39:09,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:39:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-11-10 04:39:10,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:39:10,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:39:10,231 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:39:10,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:39:10 BoogieIcfgContainer [2018-11-10 04:39:10,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:39:10,232 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 04:39:10,232 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 04:39:10,239 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 04:39:10,240 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:39:10" (1/1) ... [2018-11-10 04:39:10,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:39:10,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 04:39:10,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 32 states and 37 transitions. [2018-11-10 04:39:10,274 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2018-11-10 04:39:10,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-11-10 04:39:10,276 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 04:39:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:39:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:39:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:39:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:39:10,382 WARN L496 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2018-11-10 04:39:10,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 04:39:10 ImpRootNode [2018-11-10 04:39:10,402 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 04:39:10,402 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:39:10,402 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:39:10,402 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:39:10,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:39:10" (3/4) ... [2018-11-10 04:39:10,404 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 04:39:10,433 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_91ef93a7-90dc-40e2-89fb-18af9c850ed3/bin-2019/ukojak/witness.graphml [2018-11-10 04:39:10,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:39:10,434 INFO L168 Benchmark]: Toolchain (without parser) took 708.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -139.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:39:10,435 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:39:10,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.03 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 942.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:39:10,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.32 ms. Allocated memory is still 1.0 GB. Free memory was 942.9 MB in the beginning and 940.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:39:10,436 INFO L168 Benchmark]: Boogie Preprocessor took 18.61 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:39:10,437 INFO L168 Benchmark]: RCFGBuilder took 261.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-10 04:39:10,437 INFO L168 Benchmark]: CodeCheck took 169.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-10 04:39:10,438 INFO L168 Benchmark]: Witness Printer took 31.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:39:10,440 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 37 locations, 11 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L16] char *s1; [L17] char *s2; [L18] int n = __VERIFIER_nondet_int(); [L19] CALL cstrncat(s1, s2, n) [L4] char *s = s1; [L5] CALL \read(*s) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 192.03 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 942.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.32 ms. Allocated memory is still 1.0 GB. Free memory was 942.9 MB in the beginning and 940.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.61 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 261.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * CodeCheck took 169.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * Witness Printer took 31.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...