./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non_eq-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non_eq-3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/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 32bit --witnessprinter.graph.data.programhash a5108b5377d097a7402b9724bf53ce3710eed7c6 ................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:02:33,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:02:33,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:02:33,469 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:02:33,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:02:33,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:02:33,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:02:33,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:02:33,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:02:33,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:02:33,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:02:33,491 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:02:33,491 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:02:33,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:02:33,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:02:33,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:02:33,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:02:33,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:02:33,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:02:33,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:02:33,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:02:33,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:02:33,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:02:33,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:02:33,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:02:33,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:02:33,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:02:33,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:02:33,514 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:02:33,515 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:02:33,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:02:33,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:02:33,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:02:33,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:02:33,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:02:33,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:02:33,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:02:33,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:02:33,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:02:33,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:02:33,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:02:33,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2019-11-26 02:02:33,546 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:02:33,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:02:33,556 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:02:33,557 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:02:33,557 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:02:33,557 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:02:33,557 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:02:33,557 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:02:33,558 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:02:33,558 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:02:33,558 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:02:33,558 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:02:33,558 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:02:33,559 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:02:33,559 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:02:33,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:02:33,560 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:02:33,561 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:02:33,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:02:33,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:02:33,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:02:33,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:02:33,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:02:33,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:02:33,562 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:02:33,562 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:02:33,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:02:33,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:02:33,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:02:33,563 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:02:33,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:02:33,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:02:33,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:02:33,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:02:33,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:02:33,565 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:02:33,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:02:33,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:02:33,565 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:02:33,566 INFO L138 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/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5108b5377d097a7402b9724bf53ce3710eed7c6 [2019-11-26 02:02:33,727 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:02:33,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:02:33,744 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:02:33,746 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:02:33,746 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:02:33,747 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/utaipan/../../sv-benchmarks/c/recursive-simple/sum_non_eq-3.c [2019-11-26 02:02:33,800 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/utaipan/data/b3c77e012/86b8ede249c44225bcf6e29062aeb115/FLAG59ffa452e [2019-11-26 02:02:34,171 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:02:34,171 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/sv-benchmarks/c/recursive-simple/sum_non_eq-3.c [2019-11-26 02:02:34,176 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/utaipan/data/b3c77e012/86b8ede249c44225bcf6e29062aeb115/FLAG59ffa452e [2019-11-26 02:02:34,584 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/utaipan/data/b3c77e012/86b8ede249c44225bcf6e29062aeb115 [2019-11-26 02:02:34,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:02:34,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:02:34,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:02:34,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:02:34,596 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:02:34,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:02:34" (1/1) ... [2019-11-26 02:02:34,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44bd4941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34, skipping insertion in model container [2019-11-26 02:02:34,599 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:02:34" (1/1) ... [2019-11-26 02:02:34,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:02:34,619 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:02:34,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:02:34,772 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:02:34,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:02:34,899 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:02:34,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34 WrapperNode [2019-11-26 02:02:34,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:02:34,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:02:34,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:02:34,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:02:34,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34" (1/1) ... [2019-11-26 02:02:34,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34" (1/1) ... [2019-11-26 02:02:34,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:02:34,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:02:34,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:02:34,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:02:34,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34" (1/1) ... [2019-11-26 02:02:34,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34" (1/1) ... [2019-11-26 02:02:34,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34" (1/1) ... [2019-11-26 02:02:34,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34" (1/1) ... [2019-11-26 02:02:34,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34" (1/1) ... [2019-11-26 02:02:34,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34" (1/1) ... [2019-11-26 02:02:34,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34" (1/1) ... [2019-11-26 02:02:34,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:02:34,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:02:34,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:02:34,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:02:34,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/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 [2019-11-26 02:02:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:02:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:02:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2019-11-26 02:02:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2019-11-26 02:02:35,236 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:02:35,237 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:02:35,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:02:35 BoogieIcfgContainer [2019-11-26 02:02:35,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:02:35,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:02:35,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:02:35,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:02:35,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:02:34" (1/3) ... [2019-11-26 02:02:35,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acece7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:02:35, skipping insertion in model container [2019-11-26 02:02:35,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:02:34" (2/3) ... [2019-11-26 02:02:35,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acece7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:02:35, skipping insertion in model container [2019-11-26 02:02:35,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:02:35" (3/3) ... [2019-11-26 02:02:35,244 INFO L109 eAbstractionObserver]: Analyzing ICFG sum_non_eq-3.c [2019-11-26 02:02:35,254 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:02:35,259 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2019-11-26 02:02:35,268 INFO L249 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2019-11-26 02:02:35,292 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:02:35,293 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:02:35,293 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:02:35,293 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:02:35,294 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:02:35,294 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:02:35,294 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:02:35,294 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:02:35,311 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-26 02:02:35,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:02:35,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2019-11-26 02:02:35,390 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:02:35,390 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:02:35,391 INFO L447 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: true [2019-11-26 02:02:35,391 INFO L444 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-11-26 02:02:35,391 INFO L444 ceAbstractionStarter]: For program point sumEXIT(lines 4 10) no Hoare annotation was computed. [2019-11-26 02:02:35,391 INFO L447 ceAbstractionStarter]: At program point L8(line 8) the Hoare annotation is: true [2019-11-26 02:02:35,391 INFO L444 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2019-11-26 02:02:35,391 INFO L444 ceAbstractionStarter]: For program point L5(lines 5 9) no Hoare annotation was computed. [2019-11-26 02:02:35,391 INFO L444 ceAbstractionStarter]: For program point sumFINAL(lines 4 10) no Hoare annotation was computed. [2019-11-26 02:02:35,391 INFO L447 ceAbstractionStarter]: At program point sumENTRY(lines 4 10) the Hoare annotation is: true [2019-11-26 02:02:35,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:02:35 BoogieIcfgContainer [2019-11-26 02:02:35,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:02:35,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:02:35,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:02:35,395 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:02:35,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:02:35" (3/4) ... [2019-11-26 02:02:35,399 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:02:35,403 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2019-11-26 02:02:35,407 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2019-11-26 02:02:35,407 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:02:35,407 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:02:35,443 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e10da44c-8966-4056-b40e-2a3fe3a3f105/bin/utaipan/witness.graphml [2019-11-26 02:02:35,443 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:02:35,445 INFO L168 Benchmark]: Toolchain (without parser) took 852.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:02:35,445 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:02:35,446 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -203.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:02:35,446 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:02:35,447 INFO L168 Benchmark]: Boogie Preprocessor took 13.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:02:35,447 INFO L168 Benchmark]: RCFGBuilder took 292.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:02:35,448 INFO L168 Benchmark]: TraceAbstraction took 155.99 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:02:35,448 INFO L168 Benchmark]: Witness Printer took 48.16 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. [2019-11-26 02:02:35,451 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 307.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 951.4 MB in the beginning and 1.2 GB in the end (delta: -203.5 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 292.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 155.99 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Witness Printer took 48.16 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 10 locations, 0 error locations. Result: SAFE, OverallTime: 0.1s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...