./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91d2600fad1210650d8ad3da481cdcc11b280095 ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 14:56:24,314 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 14:56:24,316 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 14:56:24,333 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 14:56:24,335 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 14:56:24,336 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 14:56:24,337 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 14:56:24,340 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 14:56:24,343 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 14:56:24,344 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 14:56:24,345 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 14:56:24,346 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 14:56:24,347 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 14:56:24,348 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 14:56:24,349 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 14:56:24,350 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 14:56:24,351 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 14:56:24,353 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 14:56:24,355 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 14:56:24,357 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 14:56:24,358 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 14:56:24,359 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 14:56:24,362 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 14:56:24,362 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 14:56:24,362 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 14:56:24,363 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 14:56:24,364 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 14:56:24,366 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 14:56:24,366 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 14:56:24,368 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 14:56:24,368 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 14:56:24,369 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 14:56:24,369 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 14:56:24,369 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 14:56:24,371 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 14:56:24,372 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 14:56:24,372 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 14:56:24,391 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 14:56:24,392 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 14:56:24,394 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 14:56:24,394 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 14:56:24,394 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 14:56:24,395 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 14:56:24,395 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 14:56:24,395 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 14:56:24,395 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 14:56:24,395 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 14:56:24,395 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 14:56:24,396 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 14:56:24,396 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 14:56:24,396 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 14:56:24,396 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 14:56:24,396 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 14:56:24,396 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 14:56:24,397 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 14:56:24,397 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 14:56:24,397 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 14:56:24,397 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 14:56:24,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 14:56:24,397 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 14:56:24,398 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 14:56:24,398 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 14:56:24,398 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 14:56:24,398 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 14:56:24,398 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 14:56:24,399 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer 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 -> 91d2600fad1210650d8ad3da481cdcc11b280095 [2019-01-12 14:56:24,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 14:56:24,444 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 14:56:24,448 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 14:56:24,449 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 14:56:24,450 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 14:56:24,450 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c [2019-01-12 14:56:24,510 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe1ad5f1/ff755edd66614233892e2506949c371c/FLAG3000c7703 [2019-01-12 14:56:24,894 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 14:56:24,895 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c [2019-01-12 14:56:24,901 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe1ad5f1/ff755edd66614233892e2506949c371c/FLAG3000c7703 [2019-01-12 14:56:25,265 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fbe1ad5f1/ff755edd66614233892e2506949c371c [2019-01-12 14:56:25,269 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 14:56:25,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 14:56:25,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 14:56:25,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 14:56:25,275 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 14:56:25,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:56:25" (1/1) ... [2019-01-12 14:56:25,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e05ba1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25, skipping insertion in model container [2019-01-12 14:56:25,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:56:25" (1/1) ... [2019-01-12 14:56:25,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 14:56:25,304 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 14:56:25,461 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:56:25,470 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 14:56:25,501 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:56:25,521 INFO L195 MainTranslator]: Completed translation [2019-01-12 14:56:25,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25 WrapperNode [2019-01-12 14:56:25,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 14:56:25,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 14:56:25,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 14:56:25,524 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 14:56:25,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25" (1/1) ... [2019-01-12 14:56:25,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25" (1/1) ... [2019-01-12 14:56:25,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 14:56:25,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 14:56:25,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 14:56:25,579 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 14:56:25,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25" (1/1) ... [2019-01-12 14:56:25,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25" (1/1) ... [2019-01-12 14:56:25,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25" (1/1) ... [2019-01-12 14:56:25,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25" (1/1) ... [2019-01-12 14:56:25,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25" (1/1) ... [2019-01-12 14:56:25,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25" (1/1) ... [2019-01-12 14:56:25,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25" (1/1) ... [2019-01-12 14:56:25,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 14:56:25,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 14:56:25,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 14:56:25,613 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 14:56:25,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-12 14:56:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 14:56:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 14:56:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2019-01-12 14:56:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2019-01-12 14:56:26,185 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 14:56:26,185 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-12 14:56:26,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:56:26 BoogieIcfgContainer [2019-01-12 14:56:26,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 14:56:26,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 14:56:26,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 14:56:26,190 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 14:56:26,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 02:56:25" (1/3) ... [2019-01-12 14:56:26,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d474480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:56:26, skipping insertion in model container [2019-01-12 14:56:26,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:25" (2/3) ... [2019-01-12 14:56:26,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d474480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:56:26, skipping insertion in model container [2019-01-12 14:56:26,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:56:26" (3/3) ... [2019-01-12 14:56:26,194 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition01_true-unreach-call_true-no-overflow_true-termination.c [2019-01-12 14:56:26,203 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 14:56:26,210 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 14:56:26,223 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 14:56:26,252 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 14:56:26,252 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 14:56:26,253 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 14:56:26,253 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 14:56:26,253 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 14:56:26,253 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 14:56:26,253 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 14:56:26,253 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 14:56:26,254 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 14:56:26,272 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-01-12 14:56:26,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-12 14:56:26,279 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:56:26,281 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:56:26,283 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:56:26,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:56:26,289 INFO L82 PathProgramCache]: Analyzing trace with hash -2068195676, now seen corresponding path program 1 times [2019-01-12 14:56:26,291 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:56:26,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:56:26,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:26,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:56:26,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:26,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:56:26,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:56:26,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:56:26,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-12 14:56:26,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-12 14:56:26,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-12 14:56:26,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-12 14:56:26,740 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 6 states. [2019-01-12 14:56:27,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:56:27,219 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2019-01-12 14:56:27,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-12 14:56:27,221 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-01-12 14:56:27,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:56:27,229 INFO L225 Difference]: With dead ends: 33 [2019-01-12 14:56:27,230 INFO L226 Difference]: Without dead ends: 20 [2019-01-12 14:56:27,233 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-01-12 14:56:27,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-01-12 14:56:27,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-01-12 14:56:27,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-12 14:56:27,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2019-01-12 14:56:27,273 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 11 [2019-01-12 14:56:27,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:56:27,273 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2019-01-12 14:56:27,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-12 14:56:27,274 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2019-01-12 14:56:27,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-12 14:56:27,276 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:56:27,276 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:56:27,277 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:56:27,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:56:27,278 INFO L82 PathProgramCache]: Analyzing trace with hash 800728349, now seen corresponding path program 1 times [2019-01-12 14:56:27,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:56:27,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:56:27,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:27,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:56:27,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:27,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:56:27,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:56:27,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:56:27,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 14:56:27,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-12 14:56:27,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-12 14:56:27,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-12 14:56:27,350 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand 4 states. [2019-01-12 14:56:27,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:56:27,405 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2019-01-12 14:56:27,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-12 14:56:27,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-01-12 14:56:27,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:56:27,409 INFO L225 Difference]: With dead ends: 30 [2019-01-12 14:56:27,409 INFO L226 Difference]: Without dead ends: 22 [2019-01-12 14:56:27,412 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-12 14:56:27,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-01-12 14:56:27,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2019-01-12 14:56:27,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-01-12 14:56:27,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2019-01-12 14:56:27,426 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 13 [2019-01-12 14:56:27,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:56:27,427 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2019-01-12 14:56:27,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-12 14:56:27,427 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-01-12 14:56:27,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-01-12 14:56:27,431 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:56:27,431 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:56:27,431 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:56:27,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:56:27,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1352688745, now seen corresponding path program 1 times [2019-01-12 14:56:27,432 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:56:27,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:56:27,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:27,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:56:27,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:56:27,917 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-12 14:56:27,917 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 14:56:27,917 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-12 14:56:27,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:56:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:56:27,957 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 14:56:28,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-12 14:56:28,637 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 14:56:28,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-01-12 14:56:28,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-01-12 14:56:28,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-01-12 14:56:28,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2019-01-12 14:56:28,640 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 18 states. [2019-01-12 14:56:29,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:56:29,095 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2019-01-12 14:56:29,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-01-12 14:56:29,098 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2019-01-12 14:56:29,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:56:29,099 INFO L225 Difference]: With dead ends: 34 [2019-01-12 14:56:29,100 INFO L226 Difference]: Without dead ends: 28 [2019-01-12 14:56:29,100 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2019-01-12 14:56:29,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-01-12 14:56:29,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2019-01-12 14:56:29,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-01-12 14:56:29,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2019-01-12 14:56:29,112 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 18 [2019-01-12 14:56:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:56:29,115 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2019-01-12 14:56:29,116 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-01-12 14:56:29,116 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-01-12 14:56:29,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-12 14:56:29,117 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:56:29,117 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:56:29,117 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:56:29,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:56:29,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1841388592, now seen corresponding path program 1 times [2019-01-12 14:56:29,120 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:56:29,120 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:56:29,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:29,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:56:29,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:56:29,232 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-12 14:56:29,233 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 14:56:29,233 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-12 14:56:29,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:56:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:56:29,262 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 14:56:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-12 14:56:29,302 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 14:56:29,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2019-01-12 14:56:29,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-12 14:56:29,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-12 14:56:29,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-01-12 14:56:29,304 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 7 states. [2019-01-12 14:56:29,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:56:29,398 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2019-01-12 14:56:29,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-12 14:56:29,399 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2019-01-12 14:56:29,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:56:29,399 INFO L225 Difference]: With dead ends: 23 [2019-01-12 14:56:29,400 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 14:56:29,401 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-01-12 14:56:29,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 14:56:29,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 14:56:29,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 14:56:29,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 14:56:29,402 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-01-12 14:56:29,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:56:29,402 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 14:56:29,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-12 14:56:29,402 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 14:56:29,403 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 14:56:29,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 14:56:29,581 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 14:56:29,581 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 14:56:29,581 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 14:56:29,581 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 32) no Hoare annotation was computed. [2019-01-12 14:56:29,582 INFO L451 ceAbstractionStarter]: At program point L26(lines 26 45) the Hoare annotation is: true [2019-01-12 14:56:29,582 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2019-01-12 14:56:29,582 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-01-12 14:56:29,582 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2019-01-12 14:56:29,582 INFO L444 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~n~0) [2019-01-12 14:56:29,582 INFO L448 ceAbstractionStarter]: For program point L39-1(line 39) no Hoare annotation was computed. [2019-01-12 14:56:29,583 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 38) no Hoare annotation was computed. [2019-01-12 14:56:29,583 INFO L448 ceAbstractionStarter]: For program point additionFINAL(lines 13 23) no Hoare annotation was computed. [2019-01-12 14:56:29,583 INFO L444 ceAbstractionStarter]: At program point L21(line 21) the Hoare annotation is: (let ((.cse1 (+ |addition_#in~n| |addition_#in~m|)) (.cse0 (+ addition_~m addition_~n))) (and (<= .cse0 .cse1) (= |addition_#in~m| addition_~m) (<= .cse1 .cse0) (<= (+ addition_~n 1) 0))) [2019-01-12 14:56:29,583 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 22) no Hoare annotation was computed. [2019-01-12 14:56:29,583 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2019-01-12 14:56:29,583 INFO L444 ceAbstractionStarter]: At program point L18(line 18) the Hoare annotation is: (let ((.cse1 (+ |addition_#in~n| |addition_#in~m|)) (.cse0 (+ addition_~m addition_~n))) (and (<= .cse0 .cse1) (< 0 addition_~n) (= |addition_#in~m| addition_~m) (<= .cse1 .cse0))) [2019-01-12 14:56:29,584 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 19) no Hoare annotation was computed. [2019-01-12 14:56:29,584 INFO L448 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2019-01-12 14:56:29,584 INFO L451 ceAbstractionStarter]: At program point additionENTRY(lines 13 23) the Hoare annotation is: true [2019-01-12 14:56:29,584 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2019-01-12 14:56:29,584 INFO L448 ceAbstractionStarter]: For program point additionEXIT(lines 13 23) no Hoare annotation was computed. [2019-01-12 14:56:29,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 02:56:29 BoogieIcfgContainer [2019-01-12 14:56:29,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 14:56:29,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 14:56:29,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 14:56:29,591 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 14:56:29,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:56:26" (3/4) ... [2019-01-12 14:56:29,594 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 14:56:29,601 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure addition [2019-01-12 14:56:29,606 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-01-12 14:56:29,607 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-12 14:56:29,666 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 14:56:29,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 14:56:29,667 INFO L168 Benchmark]: Toolchain (without parser) took 4398.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 951.3 MB in the beginning and 907.1 MB in the end (delta: 44.2 MB). Peak memory consumption was 150.1 MB. Max. memory is 11.5 GB. [2019-01-12 14:56:29,670 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 14:56:29,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.91 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 14:56:29,671 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.19 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 14:56:29,673 INFO L168 Benchmark]: Boogie Preprocessor took 33.48 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 14:56:29,673 INFO L168 Benchmark]: RCFGBuilder took 574.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -138.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-12 14:56:29,674 INFO L168 Benchmark]: TraceAbstraction took 3402.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 914.3 MB in the end (delta: 164.4 MB). Peak memory consumption was 164.4 MB. Max. memory is 11.5 GB. [2019-01-12 14:56:29,676 INFO L168 Benchmark]: Witness Printer took 76.08 ms. Allocated memory is still 1.1 GB. Free memory was 914.3 MB in the beginning and 907.1 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-01-12 14:56:29,681 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 251.91 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 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 55.19 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.48 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 574.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -138.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3402.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 914.3 MB in the end (delta: 164.4 MB). Peak memory consumption was 164.4 MB. Max. memory is 11.5 GB. * Witness Printer took 76.08 ms. Allocated memory is still 1.1 GB. Free memory was 914.3 MB in the beginning and 907.1 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 80 SDslu, 130 SDs, 0 SdLazy, 251 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 49 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 6760 SizeOfPredicates, 9 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 8/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...