./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/rec_strlen-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/rec_strlen-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/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 1f736ad3d73bcf44f292b11858e0429161a038cf .................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 19:05:03,746 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 19:05:03,747 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 19:05:03,755 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 19:05:03,755 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 19:05:03,756 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 19:05:03,757 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 19:05:03,758 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 19:05:03,759 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 19:05:03,760 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 19:05:03,760 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 19:05:03,761 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 19:05:03,761 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 19:05:03,762 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 19:05:03,763 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 19:05:03,763 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 19:05:03,764 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 19:05:03,765 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 19:05:03,766 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 19:05:03,767 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 19:05:03,768 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 19:05:03,769 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 19:05:03,771 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 19:05:03,771 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 19:05:03,771 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 19:05:03,772 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 19:05:03,772 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 19:05:03,773 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 19:05:03,773 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 19:05:03,774 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 19:05:03,774 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 19:05:03,775 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 19:05:03,775 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 19:05:03,775 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 19:05:03,776 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 19:05:03,776 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 19:05:03,776 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-01 19:05:03,787 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 19:05:03,787 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 19:05:03,788 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 19:05:03,788 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 19:05:03,788 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 19:05:03,788 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 19:05:03,788 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 19:05:03,788 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 19:05:03,789 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 19:05:03,789 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 19:05:03,789 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-01 19:05:03,789 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-01 19:05:03,789 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-01 19:05:03,789 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 19:05:03,789 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 19:05:03,789 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 19:05:03,789 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-01 19:05:03,789 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-01 19:05:03,789 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 19:05:03,789 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 19:05:03,790 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 19:05:03,790 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 19:05:03,790 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 19:05:03,790 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-01 19:05:03,790 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 19:05:03,790 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_9854c60e-6f48-487b-888e-a4ebd72f4c02/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 -> 1f736ad3d73bcf44f292b11858e0429161a038cf [2018-12-01 19:05:03,808 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 19:05:03,817 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 19:05:03,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 19:05:03,821 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 19:05:03,821 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 19:05:03,822 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/rec_strlen-alloca_true-valid-memsafety_true-termination.i [2018-12-01 19:05:03,865 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/bin-2019/ukojak/data/5d67fe8d6/3976c462ac534402a547976cf4db180d/FLAG53cb2f640 [2018-12-01 19:05:04,200 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 19:05:04,200 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/sv-benchmarks/c/array-memsafety/rec_strlen-alloca_true-valid-memsafety_true-termination.i [2018-12-01 19:05:04,206 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/bin-2019/ukojak/data/5d67fe8d6/3976c462ac534402a547976cf4db180d/FLAG53cb2f640 [2018-12-01 19:05:04,593 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/bin-2019/ukojak/data/5d67fe8d6/3976c462ac534402a547976cf4db180d [2018-12-01 19:05:04,595 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 19:05:04,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 19:05:04,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 19:05:04,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 19:05:04,598 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 19:05:04,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:05:04" (1/1) ... [2018-12-01 19:05:04,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ceaa519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:04, skipping insertion in model container [2018-12-01 19:05:04,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:05:04" (1/1) ... [2018-12-01 19:05:04,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 19:05:04,621 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 19:05:04,761 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 19:05:04,769 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 19:05:04,828 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 19:05:04,848 INFO L195 MainTranslator]: Completed translation [2018-12-01 19:05:04,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:04 WrapperNode [2018-12-01 19:05:04,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 19:05:04,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 19:05:04,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 19:05:04,849 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 19:05:04,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:04" (1/1) ... [2018-12-01 19:05:04,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:04" (1/1) ... [2018-12-01 19:05:04,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 19:05:04,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 19:05:04,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 19:05:04,875 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 19:05:04,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:04" (1/1) ... [2018-12-01 19:05:04,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:04" (1/1) ... [2018-12-01 19:05:04,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:04" (1/1) ... [2018-12-01 19:05:04,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:04" (1/1) ... [2018-12-01 19:05:04,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:04" (1/1) ... [2018-12-01 19:05:04,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:04" (1/1) ... [2018-12-01 19:05:04,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:04" (1/1) ... [2018-12-01 19:05:04,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 19:05:04,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 19:05:04,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 19:05:04,889 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 19:05:04,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:05:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/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 [2018-12-01 19:05:04,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 19:05:04,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 19:05:04,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 19:05:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 19:05:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2018-12-01 19:05:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2018-12-01 19:05:04,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 19:05:04,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 19:05:05,081 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 19:05:05,081 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-01 19:05:05,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:05:05 BoogieIcfgContainer [2018-12-01 19:05:05,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 19:05:05,082 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-01 19:05:05,082 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-01 19:05:05,090 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-01 19:05:05,090 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:05:05" (1/1) ... [2018-12-01 19:05:05,100 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:05:05,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:05:05,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2018-12-01 19:05:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-12-01 19:05:05,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-01 19:05:05,124 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:05:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:05:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:05:05,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:05:05,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2018-12-01 19:05:05,239 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-12-01 19:05:05,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-01 19:05:05,239 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:05:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:05:05,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:05:05,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:05:05,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2018-12-01 19:05:05,347 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-12-01 19:05:05,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 19:05:05,347 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:05:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:05:05,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:05:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:05:05,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 20 transitions. [2018-12-01 19:05:05,426 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-01 19:05:05,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-01 19:05:05,426 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:05:05,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:05:05,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:05:05,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:05:05,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 23 transitions. [2018-12-01 19:05:05,765 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-12-01 19:05:05,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 19:05:05,770 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:05:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:05:05,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:05:05,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:05:05,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 19 transitions. [2018-12-01 19:05:05,794 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-01 19:05:05,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-01 19:05:05,794 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:05:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:05:06,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:05:07,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:05:07,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 23 states and 28 transitions. [2018-12-01 19:05:07,129 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2018-12-01 19:05:07,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-01 19:05:07,129 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:05:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:05:07,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:05:07,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:05:07,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 22 states and 27 transitions. [2018-12-01 19:05:07,956 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2018-12-01 19:05:07,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-01 19:05:07,957 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:05:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:05:08,944 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:05:12,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:05:12,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 30 states and 40 transitions. [2018-12-01 19:05:12,188 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2018-12-01 19:05:12,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-01 19:05:12,188 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:05:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:05:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-01 19:05:16,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:05:16,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 20 states and 24 transitions. [2018-12-01 19:05:16,489 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2018-12-01 19:05:16,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 19:05:16,489 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2018-12-01 19:05:16,495 INFO L779 CodeCheckObserver]: All specifications hold 5 specifications checked. All of them hold [2018-12-01 19:05:16,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 07:05:16 ImpRootNode [2018-12-01 19:05:16,658 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-01 19:05:16,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 19:05:16,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 19:05:16,659 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 19:05:16,659 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:05:05" (3/4) ... [2018-12-01 19:05:16,661 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 19:05:16,665 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure strlen_rec [2018-12-01 19:05:16,667 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-01 19:05:16,667 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-01 19:05:16,668 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-01 19:05:16,691 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9854c60e-6f48-487b-888e-a4ebd72f4c02/bin-2019/ukojak/witness.graphml [2018-12-01 19:05:16,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 19:05:16,692 INFO L168 Benchmark]: Toolchain (without parser) took 12097.18 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 295.2 MB). Free memory was 950.6 MB in the beginning and 1.0 GB in the end (delta: -57.4 MB). Peak memory consumption was 237.8 MB. Max. memory is 11.5 GB. [2018-12-01 19:05:16,693 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 19:05:16,693 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 60.3 MB). Free memory was 950.6 MB in the beginning and 1.0 GB in the end (delta: -92.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-12-01 19:05:16,694 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 19:05:16,694 INFO L168 Benchmark]: Boogie Preprocessor took 13.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-12-01 19:05:16,694 INFO L168 Benchmark]: RCFGBuilder took 192.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2018-12-01 19:05:16,694 INFO L168 Benchmark]: CodeCheck took 11576.54 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 234.9 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.4 MB). Peak memory consumption was 236.3 MB. Max. memory is 11.5 GB. [2018-12-01 19:05:16,695 INFO L168 Benchmark]: Witness Printer took 33.34 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. [2018-12-01 19:05:16,696 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 2 procedures, 22 locations, 5 error locations. SAFE Result, 11.3s OverallTime, 10 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 956 SDtfs, 490 SDslu, 72 SDs, 0 SdLazy, 6422 SolverSat, 2936 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 687 GetRequests, 477 SyntacticMatches, 14 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14167 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 63 ConstructedInterpolants, 0 QuantifiedInterpolants, 8060 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 8/30 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 - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 546]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 541]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 60.3 MB). Free memory was 950.6 MB in the beginning and 1.0 GB in the end (delta: -92.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 192.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * CodeCheck took 11576.54 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 234.9 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.4 MB). Peak memory consumption was 236.3 MB. Max. memory is 11.5 GB. * Witness Printer took 33.34 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...