./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/while_infinite_loop_1_true-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/loops/while_infinite_loop_1_true-unreach-call_false-termination.i -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 46c9debf13fcbaac91e24cd627789213da53a557 ............................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 05:42:58,288 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 05:42:58,291 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 05:42:58,307 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 05:42:58,307 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 05:42:58,308 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 05:42:58,310 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 05:42:58,312 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 05:42:58,316 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 05:42:58,321 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 05:42:58,322 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 05:42:58,323 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 05:42:58,324 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 05:42:58,329 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 05:42:58,332 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 05:42:58,333 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 05:42:58,333 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 05:42:58,335 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 05:42:58,337 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 05:42:58,338 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 05:42:58,339 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 05:42:58,340 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 05:42:58,343 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 05:42:58,343 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 05:42:58,343 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 05:42:58,344 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 05:42:58,345 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 05:42:58,345 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 05:42:58,346 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 05:42:58,347 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 05:42:58,347 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 05:42:58,348 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 05:42:58,348 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 05:42:58,348 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 05:42:58,349 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 05:42:58,352 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 05:42:58,352 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 05:42:58,377 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 05:42:58,377 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 05:42:58,378 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 05:42:58,378 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 05:42:58,379 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 05:42:58,379 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 05:42:58,379 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 05:42:58,379 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 05:42:58,379 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 05:42:58,380 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 05:42:58,380 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 05:42:58,380 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 05:42:58,380 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 05:42:58,380 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 05:42:58,380 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 05:42:58,381 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 05:42:58,381 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 05:42:58,381 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 05:42:58,381 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 05:42:58,381 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 05:42:58,381 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 05:42:58,382 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 05:42:58,382 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 05:42:58,382 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 05:42:58,382 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 05:42:58,382 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 05:42:58,382 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 05:42:58,383 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 05:42:58,383 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 -> 46c9debf13fcbaac91e24cd627789213da53a557 [2018-12-31 05:42:58,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 05:42:58,455 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 05:42:58,464 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 05:42:58,465 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 05:42:58,466 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 05:42:58,467 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/while_infinite_loop_1_true-unreach-call_false-termination.i [2018-12-31 05:42:58,533 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e19a516/5224b149552743edaa851e4c407921d8/FLAG13244c3ee [2018-12-31 05:42:58,994 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 05:42:58,994 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/while_infinite_loop_1_true-unreach-call_false-termination.i [2018-12-31 05:42:59,000 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e19a516/5224b149552743edaa851e4c407921d8/FLAG13244c3ee [2018-12-31 05:42:59,354 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e19a516/5224b149552743edaa851e4c407921d8 [2018-12-31 05:42:59,357 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 05:42:59,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 05:42:59,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 05:42:59,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 05:42:59,370 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 05:42:59,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:42:59" (1/1) ... [2018-12-31 05:42:59,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5146fe20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59, skipping insertion in model container [2018-12-31 05:42:59,374 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:42:59" (1/1) ... [2018-12-31 05:42:59,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 05:42:59,396 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 05:42:59,559 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 05:42:59,565 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 05:42:59,580 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 05:42:59,597 INFO L195 MainTranslator]: Completed translation [2018-12-31 05:42:59,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59 WrapperNode [2018-12-31 05:42:59,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 05:42:59,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 05:42:59,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 05:42:59,598 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 05:42:59,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59" (1/1) ... [2018-12-31 05:42:59,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59" (1/1) ... [2018-12-31 05:42:59,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 05:42:59,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 05:42:59,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 05:42:59,637 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 05:42:59,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59" (1/1) ... [2018-12-31 05:42:59,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59" (1/1) ... [2018-12-31 05:42:59,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59" (1/1) ... [2018-12-31 05:42:59,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59" (1/1) ... [2018-12-31 05:42:59,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59" (1/1) ... [2018-12-31 05:42:59,656 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59" (1/1) ... [2018-12-31 05:42:59,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59" (1/1) ... [2018-12-31 05:42:59,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 05:42:59,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 05:42:59,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 05:42:59,659 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 05:42:59,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59" (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 [2018-12-31 05:42:59,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 05:42:59,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 05:42:59,952 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 05:42:59,952 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-12-31 05:42:59,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:42:59 BoogieIcfgContainer [2018-12-31 05:42:59,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 05:42:59,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 05:42:59,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 05:42:59,957 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 05:42:59,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 05:42:59" (1/3) ... [2018-12-31 05:42:59,958 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5372e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:42:59, skipping insertion in model container [2018-12-31 05:42:59,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:42:59" (2/3) ... [2018-12-31 05:42:59,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5372e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:42:59, skipping insertion in model container [2018-12-31 05:42:59,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:42:59" (3/3) ... [2018-12-31 05:42:59,960 INFO L112 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_1_true-unreach-call_false-termination.i [2018-12-31 05:42:59,968 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 05:42:59,975 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-31 05:42:59,989 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-31 05:43:00,017 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 05:43:00,018 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 05:43:00,018 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 05:43:00,018 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 05:43:00,018 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 05:43:00,018 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 05:43:00,019 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 05:43:00,019 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 05:43:00,019 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 05:43:00,034 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-12-31 05:43:00,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-31 05:43:00,041 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:43:00,042 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-31 05:43:00,044 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:43:00,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:43:00,050 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2018-12-31 05:43:00,052 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:43:00,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:43:00,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:43:00,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:43:00,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:43:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 05:43:00,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 05:43:00,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 05:43:00,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 05:43:00,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 05:43:00,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 05:43:00,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-31 05:43:00,298 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2018-12-31 05:43:00,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 05:43:00,411 INFO L93 Difference]: Finished difference Result 15 states and 23 transitions. [2018-12-31 05:43:00,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 05:43:00,414 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-12-31 05:43:00,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 05:43:00,422 INFO L225 Difference]: With dead ends: 15 [2018-12-31 05:43:00,422 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 05:43:00,425 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-31 05:43:00,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 05:43:00,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 05:43:00,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 05:43:00,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 05:43:00,455 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2018-12-31 05:43:00,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 05:43:00,456 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 05:43:00,456 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 05:43:00,456 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 05:43:00,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 05:43:00,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 05:43:00,519 INFO L448 ceAbstractionStarter]: For program point L4-3(lines 4 6) no Hoare annotation was computed. [2018-12-31 05:43:00,520 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-31 05:43:00,520 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 05:43:00,521 INFO L444 ceAbstractionStarter]: At program point L4-5(lines 1 19) the Hoare annotation is: false [2018-12-31 05:43:00,521 INFO L448 ceAbstractionStarter]: For program point L13-2(lines 13 16) no Hoare annotation was computed. [2018-12-31 05:43:00,521 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-31 05:43:00,521 INFO L448 ceAbstractionStarter]: For program point L5-1(line 5) no Hoare annotation was computed. [2018-12-31 05:43:00,521 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-31 05:43:00,521 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 05:43:00,522 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 05:43:00,522 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-31 05:43:00,522 INFO L444 ceAbstractionStarter]: At program point L4-2(lines 3 16) the Hoare annotation is: (= ULTIMATE.start_main_~x~0 0) [2018-12-31 05:43:00,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 05:43:00 BoogieIcfgContainer [2018-12-31 05:43:00,537 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 05:43:00,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 05:43:00,538 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 05:43:00,538 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 05:43:00,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:42:59" (3/4) ... [2018-12-31 05:43:00,543 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 05:43:00,554 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-31 05:43:00,555 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 05:43:00,618 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 05:43:00,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 05:43:00,620 INFO L168 Benchmark]: Toolchain (without parser) took 1261.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -119.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:43:00,622 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-12-31 05:43:00,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 237.77 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 05:43:00,623 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.90 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:43:00,625 INFO L168 Benchmark]: Boogie Preprocessor took 22.01 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:43:00,626 INFO L168 Benchmark]: RCFGBuilder took 294.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-12-31 05:43:00,627 INFO L168 Benchmark]: TraceAbstraction took 583.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-12-31 05:43:00,628 INFO L168 Benchmark]: Witness Printer took 81.40 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:43:00,637 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 237.77 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 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 37.90 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.01 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 294.38 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -156.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 583.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 81.40 ms. Allocated memory is still 1.1 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: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: x == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...