./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i --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/loop-lit/bhmr2007_true-unreach-call_true-termination.c.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 cc52fae450c71cb08003ff68124573964734a280 ............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 17:37:34,566 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:37:34,568 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:37:34,583 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:37:34,584 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:37:34,585 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:37:34,587 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:37:34,589 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:37:34,592 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:37:34,594 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:37:34,596 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:37:34,596 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:37:34,597 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:37:34,607 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:37:34,608 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:37:34,609 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:37:34,610 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:37:34,613 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:37:34,617 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:37:34,620 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:37:34,621 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:37:34,624 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:37:34,627 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:37:34,629 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:37:34,629 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:37:34,630 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:37:34,631 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:37:34,635 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:37:34,636 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:37:34,636 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:37:34,637 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:37:34,637 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:37:34,637 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:37:34,638 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:37:34,639 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:37:34,640 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:37:34,640 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:37:34,656 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:37:34,656 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:37:34,657 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:37:34,658 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:37:34,658 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:37:34,658 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:37:34,659 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:37:34,659 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:37:34,659 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:37:34,659 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:37:34,659 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:37:34,659 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:37:34,660 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:37:34,661 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:37:34,661 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:37:34,661 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:37:34,661 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:37:34,661 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:37:34,662 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:37:34,662 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:37:34,662 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:37:34,662 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:37:34,662 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:37:34,662 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:37:34,663 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:37:34,664 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:37:34,664 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:37:34,665 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 -> cc52fae450c71cb08003ff68124573964734a280 [2019-01-14 17:37:34,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:37:34,712 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:37:34,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:37:34,718 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:37:34,719 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:37:34,719 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i [2019-01-14 17:37:34,765 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2643ae27c/8ddb31d42c2d4308902f647fa782d98d/FLAGb30408e55 [2019-01-14 17:37:35,143 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:37:35,143 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-lit/bhmr2007_true-unreach-call_true-termination.c.i [2019-01-14 17:37:35,149 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2643ae27c/8ddb31d42c2d4308902f647fa782d98d/FLAGb30408e55 [2019-01-14 17:37:35,532 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2643ae27c/8ddb31d42c2d4308902f647fa782d98d [2019-01-14 17:37:35,535 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:37:35,537 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:37:35,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:37:35,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:37:35,542 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:37:35,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:37:35" (1/1) ... [2019-01-14 17:37:35,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a409c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35, skipping insertion in model container [2019-01-14 17:37:35,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:37:35" (1/1) ... [2019-01-14 17:37:35,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:37:35,574 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:37:35,773 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:37:35,778 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:37:35,792 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:37:35,804 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:37:35,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35 WrapperNode [2019-01-14 17:37:35,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:37:35,805 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:37:35,805 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:37:35,805 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:37:35,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35" (1/1) ... [2019-01-14 17:37:35,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35" (1/1) ... [2019-01-14 17:37:35,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:37:35,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:37:35,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:37:35,832 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:37:35,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35" (1/1) ... [2019-01-14 17:37:35,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35" (1/1) ... [2019-01-14 17:37:35,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35" (1/1) ... [2019-01-14 17:37:35,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35" (1/1) ... [2019-01-14 17:37:35,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35" (1/1) ... [2019-01-14 17:37:35,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35" (1/1) ... [2019-01-14 17:37:35,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35" (1/1) ... [2019-01-14 17:37:35,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:37:35,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:37:35,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:37:35,849 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:37:35,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35" (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 [2019-01-14 17:37:35,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:37:35,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:37:36,171 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:37:36,172 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 17:37:36,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:37:36 BoogieIcfgContainer [2019-01-14 17:37:36,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:37:36,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:37:36,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:37:36,182 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:37:36,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:37:35" (1/3) ... [2019-01-14 17:37:36,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3760e3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:37:36, skipping insertion in model container [2019-01-14 17:37:36,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:35" (2/3) ... [2019-01-14 17:37:36,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3760e3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:37:36, skipping insertion in model container [2019-01-14 17:37:36,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:37:36" (3/3) ... [2019-01-14 17:37:36,188 INFO L112 eAbstractionObserver]: Analyzing ICFG bhmr2007_true-unreach-call_true-termination.c.i [2019-01-14 17:37:36,200 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:37:36,209 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:37:36,233 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:37:36,281 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:37:36,283 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:37:36,283 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:37:36,283 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:37:36,283 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:37:36,283 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:37:36,284 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:37:36,286 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:37:36,286 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:37:36,309 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-01-14 17:37:36,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 17:37:36,316 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:37:36,317 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 17:37:36,319 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:37:36,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:37:36,326 INFO L82 PathProgramCache]: Analyzing trace with hash 922414858, now seen corresponding path program 1 times [2019-01-14 17:37:36,328 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:37:36,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:37:36,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:36,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:37:36,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:37:36,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:37:36,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:37:36,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 17:37:36,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-14 17:37:36,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-14 17:37:36,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 17:37:36,450 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2019-01-14 17:37:36,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:37:36,465 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-01-14 17:37:36,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-14 17:37:36,467 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-01-14 17:37:36,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:37:36,478 INFO L225 Difference]: With dead ends: 21 [2019-01-14 17:37:36,478 INFO L226 Difference]: Without dead ends: 9 [2019-01-14 17:37:36,482 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 17:37:36,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-01-14 17:37:36,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-01-14 17:37:36,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-14 17:37:36,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2019-01-14 17:37:36,511 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2019-01-14 17:37:36,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:37:36,512 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2019-01-14 17:37:36,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-14 17:37:36,512 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-01-14 17:37:36,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 17:37:36,512 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:37:36,513 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 17:37:36,513 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:37:36,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:37:36,513 INFO L82 PathProgramCache]: Analyzing trace with hash 922087157, now seen corresponding path program 1 times [2019-01-14 17:37:36,514 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:37:36,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:37:36,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:36,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:37:36,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:37:36,697 WARN L181 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2019-01-14 17:37:36,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:37:36,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:37:36,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-14 17:37:36,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-14 17:37:36,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-14 17:37:36,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-14 17:37:36,884 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 6 states. [2019-01-14 17:37:37,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:37:37,042 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-01-14 17:37:37,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-14 17:37:37,043 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-01-14 17:37:37,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:37:37,045 INFO L225 Difference]: With dead ends: 15 [2019-01-14 17:37:37,045 INFO L226 Difference]: Without dead ends: 11 [2019-01-14 17:37:37,046 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-14 17:37:37,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-01-14 17:37:37,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-01-14 17:37:37,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-14 17:37:37,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-01-14 17:37:37,051 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2019-01-14 17:37:37,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:37:37,051 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-01-14 17:37:37,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-14 17:37:37,052 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-01-14 17:37:37,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-14 17:37:37,052 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:37:37,052 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:37:37,053 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:37:37,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:37:37,053 INFO L82 PathProgramCache]: Analyzing trace with hash 826668156, now seen corresponding path program 1 times [2019-01-14 17:37:37,053 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:37:37,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:37:37,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:37,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:37:37,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:37:37,405 WARN L181 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2019-01-14 17:37:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:37:37,555 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:37:37,555 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 [2019-01-14 17:37:37,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:37:37,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:37:37,603 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:37:37,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:37:37,917 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:37:37,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2019-01-14 17:37:37,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-01-14 17:37:37,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-01-14 17:37:37,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-01-14 17:37:37,919 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 13 states. [2019-01-14 17:37:38,075 WARN L181 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2019-01-14 17:37:38,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:37:38,632 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2019-01-14 17:37:38,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-01-14 17:37:38,636 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 9 [2019-01-14 17:37:38,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:37:38,637 INFO L225 Difference]: With dead ends: 23 [2019-01-14 17:37:38,638 INFO L226 Difference]: Without dead ends: 17 [2019-01-14 17:37:38,639 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2019-01-14 17:37:38,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-14 17:37:38,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-01-14 17:37:38,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-14 17:37:38,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-01-14 17:37:38,648 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 9 [2019-01-14 17:37:38,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:37:38,649 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-01-14 17:37:38,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-01-14 17:37:38,649 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-01-14 17:37:38,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-14 17:37:38,651 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:37:38,651 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:37:38,652 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:37:38,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:37:38,652 INFO L82 PathProgramCache]: Analyzing trace with hash -2147349609, now seen corresponding path program 1 times [2019-01-14 17:37:38,652 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:37:38,652 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:37:38,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:38,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:37:38,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:38,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:37:39,001 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-14 17:37:39,001 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:37:39,001 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 [2019-01-14 17:37:39,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:37:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:37:39,030 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:37:39,496 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:37:39,515 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:37:39,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2019-01-14 17:37:39,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-01-14 17:37:39,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-01-14 17:37:39,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2019-01-14 17:37:39,516 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 16 states. [2019-01-14 17:37:40,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:37:40,259 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-01-14 17:37:40,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-01-14 17:37:40,260 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 12 [2019-01-14 17:37:40,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:37:40,261 INFO L225 Difference]: With dead ends: 24 [2019-01-14 17:37:40,261 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:37:40,262 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=151, Invalid=661, Unknown=0, NotChecked=0, Total=812 [2019-01-14 17:37:40,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:37:40,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:37:40,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:37:40,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:37:40,264 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-01-14 17:37:40,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:37:40,264 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:37:40,264 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-01-14 17:37:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:37:40,265 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:37:40,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:37:40,395 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:37:40,396 INFO L451 ceAbstractionStarter]: At program point L25(lines 10 26) the Hoare annotation is: true [2019-01-14 17:37:40,396 INFO L448 ceAbstractionStarter]: For program point L15(lines 15 21) no Hoare annotation was computed. [2019-01-14 17:37:40,396 INFO L448 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-01-14 17:37:40,396 INFO L448 ceAbstractionStarter]: For program point L15-2(lines 15 21) no Hoare annotation was computed. [2019-01-14 17:37:40,396 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-01-14 17:37:40,396 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:37:40,397 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:37:40,397 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 23) the Hoare annotation is: (let ((.cse1 (* 3 ULTIMATE.start_main_~i~0)) (.cse0 (+ ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0))) (and (< .cse0 (+ (* 3 ULTIMATE.start_main_~n~0) 1)) (<= .cse0 .cse1) (<= .cse1 .cse0))) [2019-01-14 17:37:40,397 INFO L448 ceAbstractionStarter]: For program point L14-3(lines 14 23) no Hoare annotation was computed. [2019-01-14 17:37:40,397 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-01-14 17:37:40,397 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-01-14 17:37:40,398 INFO L451 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-01-14 17:37:40,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:37:40 BoogieIcfgContainer [2019-01-14 17:37:40,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:37:40,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:37:40,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:37:40,413 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:37:40,413 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:37:36" (3/4) ... [2019-01-14 17:37:40,417 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:37:40,426 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-14 17:37:40,427 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 17:37:40,477 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:37:40,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:37:40,478 INFO L168 Benchmark]: Toolchain (without parser) took 4942.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 951.4 MB in the beginning and 882.2 MB in the end (delta: 69.1 MB). Peak memory consumption was 212.3 MB. Max. memory is 11.5 GB. [2019-01-14 17:37:40,480 INFO L168 Benchmark]: CDTParser took 0.14 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. [2019-01-14 17:37:40,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.93 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 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. [2019-01-14 17:37:40,481 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.54 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. [2019-01-14 17:37:40,481 INFO L168 Benchmark]: Boogie Preprocessor took 16.00 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. [2019-01-14 17:37:40,482 INFO L168 Benchmark]: RCFGBuilder took 325.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-01-14 17:37:40,483 INFO L168 Benchmark]: TraceAbstraction took 4237.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.8 MB in the end (delta: 224.7 MB). Peak memory consumption was 224.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:37:40,483 INFO L168 Benchmark]: Witness Printer took 64.36 ms. Allocated memory is still 1.2 GB. Free memory was 888.8 MB in the beginning and 882.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-14 17:37:40,487 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 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 266.93 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 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 26.54 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 16.00 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 325.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -172.9 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4237.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.8 MB in the end (delta: 224.7 MB). Peak memory consumption was 224.7 MB. Max. memory is 11.5 GB. * Witness Printer took 64.36 ms. Allocated memory is still 1.2 GB. Free memory was 888.8 MB in the beginning and 882.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (a + b < 3 * n + 1 && a + b <= 3 * i) && 3 * i <= a + b - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. SAFE Result, 4.1s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 40 SDslu, 19 SDs, 0 SdLazy, 233 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=3, 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 26 HoareAnnotationTreeSize, 3 FomulaSimplifications, 75 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 101 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 4964 SizeOfPredicates, 12 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 1/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...