./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/ConversionToSignedInt.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_727c7fe4-b0da-4d20-a58c-88b7cd686865/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/ConversionToSignedInt.i -s /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/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 64bit --witnessprinter.graph.data.programhash 9053a59183bda48b00ea35c6720e8fb929c8af09 ....................................................................................................................................................................................................................... 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 02:56:57,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:56:57,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:56:57,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:56:57,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:56:57,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:56:57,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:56:57,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:56:57,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:56:57,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:56:57,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:56:57,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:56:57,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:56:57,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:56:57,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:56:57,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:56:57,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:56:57,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:56:57,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:56:57,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:56:57,344 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:56:57,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:56:57,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:56:57,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:56:57,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:56:57,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:56:57,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:56:57,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:56:57,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:56:57,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:56:57,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:56:57,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:56:57,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:56:57,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:56:57,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:56:57,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:56:57,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:56:57,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:56:57,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:56:57,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:56:57,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:56:57,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-11-26 02:56:57,387 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:56:57,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:56:57,389 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:56:57,390 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:56:57,390 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:56:57,390 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:56:57,390 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:56:57,391 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:56:57,391 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:56:57,391 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:56:57,392 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:56:57,392 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:56:57,392 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:56:57,393 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:56:57,393 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:56:57,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:56:57,394 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:56:57,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:56:57,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:56:57,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:56:57,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:56:57,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:56:57,395 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:56:57,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:56:57,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:56:57,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:56:57,396 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:56:57,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:56:57,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:56:57,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:56:57,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:56:57,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:56:57,397 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:56:57,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:56:57,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:56:57,398 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:56:57,398 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_727c7fe4-b0da-4d20-a58c-88b7cd686865/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9053a59183bda48b00ea35c6720e8fb929c8af09 [2019-11-26 02:56:57,563 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:56:57,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:56:57,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:56:57,582 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:56:57,582 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:56:57,583 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/bin/utaipan/../../sv-benchmarks/c/signedintegeroverflow-regression/ConversionToSignedInt.i [2019-11-26 02:56:57,639 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/bin/utaipan/data/ef4fe3464/746f7abeb7d34b26bf484db32117e0f1/FLAG5df1ff9fc [2019-11-26 02:56:58,084 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:56:58,088 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/sv-benchmarks/c/signedintegeroverflow-regression/ConversionToSignedInt.i [2019-11-26 02:56:58,105 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/bin/utaipan/data/ef4fe3464/746f7abeb7d34b26bf484db32117e0f1/FLAG5df1ff9fc [2019-11-26 02:56:58,424 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/bin/utaipan/data/ef4fe3464/746f7abeb7d34b26bf484db32117e0f1 [2019-11-26 02:56:58,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:56:58,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:56:58,427 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:56:58,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:56:58,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:56:58,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:56:58" (1/1) ... [2019-11-26 02:56:58,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3842dbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58, skipping insertion in model container [2019-11-26 02:56:58,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:56:58" (1/1) ... [2019-11-26 02:56:58,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:56:58,481 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:56:58,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:56:58,838 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:56:58,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:56:58,925 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:56:58,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58 WrapperNode [2019-11-26 02:56:58,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:56:58,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:56:58,926 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:56:58,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:56:58,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58" (1/1) ... [2019-11-26 02:56:58,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58" (1/1) ... [2019-11-26 02:56:58,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:56:58,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:56:58,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:56:58,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:56:58,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58" (1/1) ... [2019-11-26 02:56:58,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58" (1/1) ... [2019-11-26 02:56:58,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58" (1/1) ... [2019-11-26 02:56:58,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58" (1/1) ... [2019-11-26 02:56:58,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58" (1/1) ... [2019-11-26 02:56:58,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58" (1/1) ... [2019-11-26 02:56:58,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58" (1/1) ... [2019-11-26 02:56:58,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:56:58,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:56:58,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:56:58,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:56:58,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/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 02:56:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:56:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-26 02:56:59,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:56:59,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:56:59,375 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:56:59,375 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:56:59,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:59 BoogieIcfgContainer [2019-11-26 02:56:59,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:56:59,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:56:59,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:56:59,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:56:59,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:56:58" (1/3) ... [2019-11-26 02:56:59,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203ff00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:56:59, skipping insertion in model container [2019-11-26 02:56:59,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:58" (2/3) ... [2019-11-26 02:56:59,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203ff00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:56:59, skipping insertion in model container [2019-11-26 02:56:59,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:59" (3/3) ... [2019-11-26 02:56:59,387 INFO L109 eAbstractionObserver]: Analyzing ICFG ConversionToSignedInt.i [2019-11-26 02:56:59,396 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:56:59,403 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2019-11-26 02:56:59,413 INFO L249 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2019-11-26 02:56:59,441 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:56:59,441 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:56:59,442 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:56:59,442 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:56:59,442 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:56:59,442 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:56:59,442 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:56:59,442 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:56:59,454 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2019-11-26 02:56:59,458 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:56:59,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2019-11-26 02:56:59,503 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:56:59,504 INFO L447 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-26 02:56:59,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:56:59 BoogieIcfgContainer [2019-11-26 02:56:59,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:56:59,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:56:59,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:56:59,513 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:56:59,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:59" (3/4) ... [2019-11-26 02:56:59,517 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:56:59,526 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-26 02:56:59,527 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-26 02:56:59,527 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:56:59,527 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:56:59,558 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_727c7fe4-b0da-4d20-a58c-88b7cd686865/bin/utaipan/witness.graphml [2019-11-26 02:56:59,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:56:59,561 INFO L168 Benchmark]: Toolchain (without parser) took 1133.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -141.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:59,561 INFO L168 Benchmark]: CDTParser took 0.23 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 02:56:59,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:59,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.09 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 02:56:59,563 INFO L168 Benchmark]: Boogie Preprocessor took 17.21 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 02:56:59,563 INFO L168 Benchmark]: RCFGBuilder took 392.81 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:59,564 INFO L168 Benchmark]: TraceAbstraction took 134.92 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:59,564 INFO L168 Benchmark]: Witness Printer took 46.12 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:59,567 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 498.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.09 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. * Boogie Preprocessor took 17.21 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. * RCFGBuilder took 392.81 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 134.92 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Witness Printer took 46.12 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: 5.4 MB). Peak memory consumption was 5.4 MB. 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. - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 locations, 0 error locations. Result: SAFE, OverallTime: 0.0s, 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=2occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 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...