./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrlen_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrlen_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1e3ef20869762bcfb9d8151d96b8065864cd760e .......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:07:28,149 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:07:28,150 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:07:28,158 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:07:28,158 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:07:28,159 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:07:28,160 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:07:28,161 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:07:28,162 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:07:28,163 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:07:28,163 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:07:28,164 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:07:28,164 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:07:28,165 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:07:28,166 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:07:28,166 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:07:28,167 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:07:28,169 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:07:28,170 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:07:28,171 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:07:28,172 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:07:28,173 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:07:28,174 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:07:28,174 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:07:28,174 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:07:28,175 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:07:28,176 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:07:28,177 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:07:28,177 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:07:28,178 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:07:28,178 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:07:28,179 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:07:28,179 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:07:28,179 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:07:28,180 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:07:28,181 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:07:28,181 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-23 13:07:28,191 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:07:28,191 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:07:28,192 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:07:28,192 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:07:28,192 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 13:07:28,192 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 13:07:28,192 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 13:07:28,192 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 13:07:28,193 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 13:07:28,193 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 13:07:28,193 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 13:07:28,193 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 13:07:28,193 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 13:07:28,193 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:07:28,194 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 13:07:28,194 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:07:28,194 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:07:28,194 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:07:28,194 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:07:28,194 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:07:28,194 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 13:07:28,195 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:07:28,197 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:07:28,197 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:07:28,197 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:07:28,197 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:07:28,197 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:07:28,197 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:07:28,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:07:28,198 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:07:28,198 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:07:28,198 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:07:28,198 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 13:07:28,198 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:07:28,198 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:07:28,198 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:07:28,199 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e3ef20869762bcfb9d8151d96b8065864cd760e [2018-11-23 13:07:28,222 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:07:28,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:07:28,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:07:28,235 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:07:28,235 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:07:28,235 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/cstrlen_true-termination_true-no-overflow.c [2018-11-23 13:07:28,268 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan/data/d86ebb782/d36c3ecc95914b1dbc4829ab749328ad/FLAG93c1b9cbb [2018-11-23 13:07:28,654 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:07:28,654 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/sv-benchmarks/c/termination-crafted-lit/cstrlen_true-termination_true-no-overflow.c [2018-11-23 13:07:28,658 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan/data/d86ebb782/d36c3ecc95914b1dbc4829ab749328ad/FLAG93c1b9cbb [2018-11-23 13:07:28,666 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan/data/d86ebb782/d36c3ecc95914b1dbc4829ab749328ad [2018-11-23 13:07:28,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:07:28,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:07:28,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:07:28,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:07:28,671 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:07:28,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:07:28" (1/1) ... [2018-11-23 13:07:28,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f3324f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28, skipping insertion in model container [2018-11-23 13:07:28,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:07:28" (1/1) ... [2018-11-23 13:07:28,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:07:28,691 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:07:28,800 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:07:28,806 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:07:28,816 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:07:28,827 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:07:28,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28 WrapperNode [2018-11-23 13:07:28,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:07:28,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:07:28,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:07:28,828 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:07:28,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28" (1/1) ... [2018-11-23 13:07:28,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28" (1/1) ... [2018-11-23 13:07:28,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:07:28,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:07:28,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:07:28,848 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:07:28,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28" (1/1) ... [2018-11-23 13:07:28,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28" (1/1) ... [2018-11-23 13:07:28,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28" (1/1) ... [2018-11-23 13:07:28,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28" (1/1) ... [2018-11-23 13:07:28,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28" (1/1) ... [2018-11-23 13:07:28,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28" (1/1) ... [2018-11-23 13:07:28,901 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28" (1/1) ... [2018-11-23 13:07:28,902 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:07:28,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:07:28,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:07:28,903 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:07:28,904 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:07:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 13:07:28,941 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2018-11-23 13:07:28,941 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2018-11-23 13:07:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:07:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:07:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 13:07:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure cstrlen [2018-11-23 13:07:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure cstrlen [2018-11-23 13:07:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:07:28,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:07:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 13:07:28,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:07:28,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:07:29,074 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:07:29,075 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 13:07:29,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:29 BoogieIcfgContainer [2018-11-23 13:07:29,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:07:29,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:07:29,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:07:29,078 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:07:29,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:07:28" (1/3) ... [2018-11-23 13:07:29,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c147a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:07:29, skipping insertion in model container [2018-11-23 13:07:29,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:28" (2/3) ... [2018-11-23 13:07:29,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24c147a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:07:29, skipping insertion in model container [2018-11-23 13:07:29,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:29" (3/3) ... [2018-11-23 13:07:29,081 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrlen_true-termination_true-no-overflow.c [2018-11-23 13:07:29,089 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:07:29,095 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-23 13:07:29,109 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-23 13:07:29,134 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:07:29,134 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:07:29,134 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:07:29,134 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:07:29,134 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:07:29,135 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:07:29,135 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:07:29,135 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:07:29,151 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-23 13:07:29,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 13:07:29,155 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:07:29,156 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:07:29,158 INFO L423 AbstractCegarLoop]: === Iteration 1 === [build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 13:07:29,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:07:29,162 INFO L82 PathProgramCache]: Analyzing trace with hash -21371039, now seen corresponding path program 1 times [2018-11-23 13:07:29,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:07:29,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:07:29,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:07:29,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:07:29,193 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:07:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:07:29,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:07:29,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:07:29,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:07:29,269 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:07:29,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:07:29,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:07:29,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:07:29,281 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2018-11-23 13:07:29,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:07:29,334 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2018-11-23 13:07:29,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:07:29,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 13:07:29,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:07:29,341 INFO L225 Difference]: With dead ends: 46 [2018-11-23 13:07:29,341 INFO L226 Difference]: Without dead ends: 20 [2018-11-23 13:07:29,343 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:07:29,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-23 13:07:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2018-11-23 13:07:29,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-23 13:07:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2018-11-23 13:07:29,365 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 9 [2018-11-23 13:07:29,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:07:29,365 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2018-11-23 13:07:29,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:07:29,365 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2018-11-23 13:07:29,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-23 13:07:29,366 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:07:29,366 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:07:29,366 INFO L423 AbstractCegarLoop]: === Iteration 2 === [build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 13:07:29,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:07:29,367 INFO L82 PathProgramCache]: Analyzing trace with hash -21370977, now seen corresponding path program 1 times [2018-11-23 13:07:29,367 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:07:29,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:07:29,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:07:29,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:07:29,368 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:07:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:07:29,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:07:29,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:07:29,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:07:29,394 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:07:29,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:07:29,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:07:29,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:07:29,395 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand 3 states. [2018-11-23 13:07:29,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:07:29,413 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-23 13:07:29,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:07:29,414 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-23 13:07:29,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:07:29,414 INFO L225 Difference]: With dead ends: 19 [2018-11-23 13:07:29,415 INFO L226 Difference]: Without dead ends: 17 [2018-11-23 13:07:29,415 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:07:29,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-23 13:07:29,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2018-11-23 13:07:29,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 13:07:29,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-23 13:07:29,417 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 9 [2018-11-23 13:07:29,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:07:29,417 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-23 13:07:29,417 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:07:29,417 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-23 13:07:29,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 13:07:29,418 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:07:29,418 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:07:29,418 INFO L423 AbstractCegarLoop]: === Iteration 3 === [build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-23 13:07:29,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:07:29,418 INFO L82 PathProgramCache]: Analyzing trace with hash -662502169, now seen corresponding path program 1 times [2018-11-23 13:07:29,419 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 13:07:29,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:07:29,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:07:29,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:07:29,419 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 13:07:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:07:29,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:07:29,442 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:07:29,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 13:07:29,442 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 13:07:29,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:07:29,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:07:29,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:07:29,443 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 3 states. [2018-11-23 13:07:29,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:07:29,452 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-11-23 13:07:29,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:07:29,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 13:07:29,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:07:29,453 INFO L225 Difference]: With dead ends: 14 [2018-11-23 13:07:29,453 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 13:07:29,453 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:07:29,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 13:07:29,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 13:07:29,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 13:07:29,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 13:07:29,454 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-23 13:07:29,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:07:29,454 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:07:29,454 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:07:29,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:07:29,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:07:29,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 13:07:29,474 INFO L448 ceAbstractionStarter]: For program point build_nondet_StringFINAL(lines 12 20) no Hoare annotation was computed. [2018-11-23 13:07:29,474 INFO L448 ceAbstractionStarter]: For program point build_nondet_StringErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-23 13:07:29,474 INFO L448 ceAbstractionStarter]: For program point build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2018-11-23 13:07:29,474 INFO L448 ceAbstractionStarter]: For program point build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2018-11-23 13:07:29,475 INFO L448 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-23 13:07:29,475 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-23 13:07:29,475 INFO L448 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-23 13:07:29,475 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2018-11-23 13:07:29,475 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2018-11-23 13:07:29,475 INFO L451 ceAbstractionStarter]: At program point build_nondet_StringENTRY(lines 12 20) the Hoare annotation is: true [2018-11-23 13:07:29,475 INFO L448 ceAbstractionStarter]: For program point build_nondet_StringErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-23 13:07:29,475 INFO L448 ceAbstractionStarter]: For program point build_nondet_StringEXIT(lines 12 20) no Hoare annotation was computed. [2018-11-23 13:07:29,475 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:07:29,475 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:07:29,475 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:07:29,476 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 30 31) no Hoare annotation was computed. [2018-11-23 13:07:29,476 INFO L451 ceAbstractionStarter]: At program point L30-3(lines 30 31) the Hoare annotation is: true [2018-11-23 13:07:29,476 INFO L448 ceAbstractionStarter]: For program point L30-4(lines 30 31) no Hoare annotation was computed. [2018-11-23 13:07:29,476 INFO L451 ceAbstractionStarter]: At program point cstrlenENTRY(lines 26 33) the Hoare annotation is: true [2018-11-23 13:07:29,476 INFO L448 ceAbstractionStarter]: For program point cstrlenEXIT(lines 26 33) no Hoare annotation was computed. [2018-11-23 13:07:29,476 INFO L448 ceAbstractionStarter]: For program point cstrlenFINAL(lines 26 33) no Hoare annotation was computed. [2018-11-23 13:07:29,476 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:07:29,476 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 13:07:29,476 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:07:29,476 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:07:29,476 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 35 37) the Hoare annotation is: true [2018-11-23 13:07:29,476 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 35 37) no Hoare annotation was computed. [2018-11-23 13:07:29,477 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 35 37) no Hoare annotation was computed. [2018-11-23 13:07:29,477 INFO L451 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: true [2018-11-23 13:07:29,477 INFO L448 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2018-11-23 13:07:29,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:07:29 BoogieIcfgContainer [2018-11-23 13:07:29,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:07:29,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:07:29,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:07:29,481 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:07:29,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:29" (3/4) ... [2018-11-23 13:07:29,484 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:07:29,488 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure build_nondet_String [2018-11-23 13:07:29,488 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 13:07:29,488 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cstrlen [2018-11-23 13:07:29,488 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 13:07:29,491 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-23 13:07:29,491 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 13:07:29,491 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 13:07:29,521 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_509b0a4d-7c88-427b-9294-1735e6227434/bin-2019/utaipan/witness.graphml [2018-11-23 13:07:29,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:07:29,522 INFO L168 Benchmark]: Toolchain (without parser) took 853.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -109.2 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-23 13:07:29,523 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:07:29,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.29 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:07:29,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.25 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:07:29,524 INFO L168 Benchmark]: Boogie Preprocessor took 54.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-23 13:07:29,525 INFO L168 Benchmark]: RCFGBuilder took 172.14 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: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-23 13:07:29,525 INFO L168 Benchmark]: TraceAbstraction took 405.20 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: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. [2018-11-23 13:07:29,525 INFO L168 Benchmark]: Witness Printer took 40.35 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: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2018-11-23 13:07:29,528 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 158.29 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.25 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -183.3 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 172.14 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: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 405.20 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: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. * Witness Printer took 40.35 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: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 4 error locations. SAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 14 SDslu, 32 SDs, 0 SdLazy, 25 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...