./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-new/count_by_1_true-unreach-call_true-termination.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-new/count_by_1_true-unreach-call_true-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 43bf08ab7eab650af2134651dc434d79e4859447 .................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:25:49,451 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 11:25:49,453 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 11:25:49,467 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 11:25:49,467 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 11:25:49,468 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 11:25:49,470 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 11:25:49,472 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 11:25:49,473 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 11:25:49,475 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 11:25:49,476 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 11:25:49,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 11:25:49,478 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 11:25:49,481 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 11:25:49,488 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 11:25:49,489 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 11:25:49,493 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 11:25:49,495 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 11:25:49,497 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 11:25:49,501 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 11:25:49,502 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 11:25:49,503 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 11:25:49,505 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 11:25:49,505 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 11:25:49,506 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 11:25:49,506 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 11:25:49,507 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 11:25:49,508 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 11:25:49,509 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 11:25:49,510 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 11:25:49,510 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 11:25:49,511 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 11:25:49,511 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 11:25:49,511 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 11:25:49,513 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 11:25:49,513 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 11:25:49,514 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 11:25:49,537 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 11:25:49,537 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 11:25:49,541 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 11:25:49,544 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 11:25:49,544 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 11:25:49,544 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 11:25:49,544 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 11:25:49,544 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 11:25:49,545 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 11:25:49,545 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 11:25:49,545 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 11:25:49,545 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 11:25:49,545 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 11:25:49,546 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 11:25:49,546 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 11:25:49,546 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 11:25:49,546 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 11:25:49,547 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 11:25:49,547 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 11:25:49,547 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 11:25:49,547 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 11:25:49,547 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 11:25:49,548 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 11:25:49,549 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 11:25:49,549 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 11:25:49,549 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 11:25:49,550 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 11:25:49,550 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 11:25:49,550 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 -> 43bf08ab7eab650af2134651dc434d79e4859447 [2019-01-12 11:25:49,589 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 11:25:49,602 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 11:25:49,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 11:25:49,610 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 11:25:49,611 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 11:25:49,611 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-new/count_by_1_true-unreach-call_true-termination.i [2019-01-12 11:25:49,668 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31878ad19/c44e6e96fcd34a398fb8c66c96c88f79/FLAG99a4e16ab [2019-01-12 11:25:50,088 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 11:25:50,089 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-new/count_by_1_true-unreach-call_true-termination.i [2019-01-12 11:25:50,093 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31878ad19/c44e6e96fcd34a398fb8c66c96c88f79/FLAG99a4e16ab [2019-01-12 11:25:50,477 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31878ad19/c44e6e96fcd34a398fb8c66c96c88f79 [2019-01-12 11:25:50,481 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 11:25:50,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 11:25:50,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 11:25:50,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 11:25:50,486 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 11:25:50,487 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 11:25:50" (1/1) ... [2019-01-12 11:25:50,490 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5baa1775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50, skipping insertion in model container [2019-01-12 11:25:50,490 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 11:25:50" (1/1) ... [2019-01-12 11:25:50,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 11:25:50,511 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 11:25:50,693 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 11:25:50,698 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 11:25:50,715 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 11:25:50,731 INFO L195 MainTranslator]: Completed translation [2019-01-12 11:25:50,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50 WrapperNode [2019-01-12 11:25:50,732 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 11:25:50,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 11:25:50,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 11:25:50,733 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 11:25:50,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50" (1/1) ... [2019-01-12 11:25:50,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50" (1/1) ... [2019-01-12 11:25:50,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 11:25:50,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 11:25:50,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 11:25:50,767 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 11:25:50,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50" (1/1) ... [2019-01-12 11:25:50,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50" (1/1) ... [2019-01-12 11:25:50,777 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50" (1/1) ... [2019-01-12 11:25:50,778 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50" (1/1) ... [2019-01-12 11:25:50,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50" (1/1) ... [2019-01-12 11:25:50,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50" (1/1) ... [2019-01-12 11:25:50,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50" (1/1) ... [2019-01-12 11:25:50,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 11:25:50,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 11:25:50,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 11:25:50,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 11:25:50,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50" (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 11:25:50,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 11:25:50,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 11:25:51,070 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 11:25:51,070 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-12 11:25:51,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:25:51 BoogieIcfgContainer [2019-01-12 11:25:51,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 11:25:51,073 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 11:25:51,073 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 11:25:51,075 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 11:25:51,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 11:25:50" (1/3) ... [2019-01-12 11:25:51,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30118f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 11:25:51, skipping insertion in model container [2019-01-12 11:25:51,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 11:25:50" (2/3) ... [2019-01-12 11:25:51,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30118f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 11:25:51, skipping insertion in model container [2019-01-12 11:25:51,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:25:51" (3/3) ... [2019-01-12 11:25:51,078 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_true-unreach-call_true-termination.i [2019-01-12 11:25:51,088 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 11:25:51,094 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 11:25:51,110 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 11:25:51,139 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 11:25:51,139 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 11:25:51,140 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 11:25:51,140 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 11:25:51,140 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 11:25:51,140 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 11:25:51,140 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 11:25:51,140 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 11:25:51,140 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 11:25:51,153 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-01-12 11:25:51,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-12 11:25:51,159 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:25:51,160 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-12 11:25:51,162 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:25:51,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:25:51,170 INFO L82 PathProgramCache]: Analyzing trace with hash 29776202, now seen corresponding path program 1 times [2019-01-12 11:25:51,172 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:25:51,172 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:25:51,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:51,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:25:51,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:25:51,310 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 11:25:51,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 11:25:51,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 11:25:51,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 11:25:51,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 11:25:51,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 11:25:51,328 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-01-12 11:25:51,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:25:51,416 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-01-12 11:25:51,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 11:25:51,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-12 11:25:51,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:25:51,432 INFO L225 Difference]: With dead ends: 21 [2019-01-12 11:25:51,432 INFO L226 Difference]: Without dead ends: 9 [2019-01-12 11:25:51,437 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 11:25:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-01-12 11:25:51,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-01-12 11:25:51,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-12 11:25:51,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-01-12 11:25:51,473 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-01-12 11:25:51,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:25:51,474 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-01-12 11:25:51,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 11:25:51,474 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-01-12 11:25:51,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-12 11:25:51,475 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:25:51,476 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-12 11:25:51,476 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:25:51,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:25:51,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1396608660, now seen corresponding path program 1 times [2019-01-12 11:25:51,476 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:25:51,477 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:25:51,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:51,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:25:51,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:25:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:25:51,564 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 11:25:51,564 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 11:25:51,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:25:51,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:25:51,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 11:25:51,626 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:25:51,645 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 11:25:51,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2019-01-12 11:25:51,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-12 11:25:51,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-12 11:25:51,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-12 11:25:51,648 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 4 states. [2019-01-12 11:25:51,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:25:51,706 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-01-12 11:25:51,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-12 11:25:51,707 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-01-12 11:25:51,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:25:51,708 INFO L225 Difference]: With dead ends: 15 [2019-01-12 11:25:51,708 INFO L226 Difference]: Without dead ends: 11 [2019-01-12 11:25:51,709 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 11:25:51,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-01-12 11:25:51,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2019-01-12 11:25:51,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-01-12 11:25:51,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-01-12 11:25:51,713 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2019-01-12 11:25:51,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:25:51,713 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-01-12 11:25:51,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-12 11:25:51,713 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-01-12 11:25:51,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-12 11:25:51,714 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:25:51,714 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2019-01-12 11:25:51,714 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:25:51,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:25:51,715 INFO L82 PathProgramCache]: Analyzing trace with hash -2057893618, now seen corresponding path program 2 times [2019-01-12 11:25:51,715 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:25:51,715 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:25:51,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:51,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 11:25:51,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:25:51,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:25:51,774 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 11:25:51,774 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 11:25:51,786 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-12 11:25:51,800 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-01-12 11:25:51,800 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-12 11:25:51,802 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 11:25:51,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:25:51,827 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 11:25:51,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2019-01-12 11:25:51,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 11:25:51,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 11:25:51,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-12 11:25:51,829 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 5 states. [2019-01-12 11:25:51,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:25:51,881 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-01-12 11:25:51,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-12 11:25:51,882 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-01-12 11:25:51,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:25:51,882 INFO L225 Difference]: With dead ends: 17 [2019-01-12 11:25:51,882 INFO L226 Difference]: Without dead ends: 13 [2019-01-12 11:25:51,883 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-01-12 11:25:51,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-01-12 11:25:51,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-01-12 11:25:51,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-12 11:25:51,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-01-12 11:25:51,886 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-01-12 11:25:51,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:25:51,886 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-01-12 11:25:51,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 11:25:51,887 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-01-12 11:25:51,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-12 11:25:51,887 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 11:25:51,887 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1] [2019-01-12 11:25:51,887 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 11:25:51,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 11:25:51,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1897578448, now seen corresponding path program 3 times [2019-01-12 11:25:51,888 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 11:25:51,888 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 11:25:51,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:51,889 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-12 11:25:51,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 11:25:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 11:25:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 11:25:52,045 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 11:25:52,045 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-12 11:25:52,058 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-12 11:25:52,069 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-01-12 11:25:52,069 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-12 11:25:52,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 11:25:52,325 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-01-12 11:25:52,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-12 11:25:52,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2019-01-12 11:25:52,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-12 11:25:52,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-12 11:25:52,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-01-12 11:25:52,346 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 10 states. [2019-01-12 11:25:52,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 11:25:52,467 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-01-12 11:25:52,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-12 11:25:52,468 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-01-12 11:25:52,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 11:25:52,468 INFO L225 Difference]: With dead ends: 18 [2019-01-12 11:25:52,469 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 11:25:52,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-01-12 11:25:52,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 11:25:52,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 11:25:52,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 11:25:52,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 11:25:52,471 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-01-12 11:25:52,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 11:25:52,471 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 11:25:52,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-12 11:25:52,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 11:25:52,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 11:25:52,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 11:25:52,520 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 11:25:52,520 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-01-12 11:25:52,521 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 11:25:52,521 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-01-12 11:25:52,521 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 11:25:52,521 INFO L451 ceAbstractionStarter]: At program point L14(lines 10 15) the Hoare annotation is: true [2019-01-12 11:25:52,521 INFO L448 ceAbstractionStarter]: For program point L12-2(line 12) no Hoare annotation was computed. [2019-01-12 11:25:52,522 INFO L444 ceAbstractionStarter]: At program point L12-3(line 12) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 1000000) [2019-01-12 11:25:52,522 INFO L448 ceAbstractionStarter]: For program point L12-4(line 12) no Hoare annotation was computed. [2019-01-12 11:25:52,522 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-01-12 11:25:52,522 INFO L451 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-01-12 11:25:52,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 11:25:52 BoogieIcfgContainer [2019-01-12 11:25:52,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 11:25:52,534 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 11:25:52,534 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 11:25:52,534 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 11:25:52,535 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 11:25:51" (3/4) ... [2019-01-12 11:25:52,538 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 11:25:52,549 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-12 11:25:52,549 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 11:25:52,595 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 11:25:52,595 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 11:25:52,596 INFO L168 Benchmark]: Toolchain (without parser) took 2115.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -73.6 MB). Peak memory consumption was 47.5 MB. Max. memory is 11.5 GB. [2019-01-12 11:25:52,598 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. [2019-01-12 11:25:52,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.28 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. [2019-01-12 11:25:52,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.19 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 11:25:52,600 INFO L168 Benchmark]: Boogie Preprocessor took 21.28 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 11:25:52,601 INFO L168 Benchmark]: RCFGBuilder took 283.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-01-12 11:25:52,602 INFO L168 Benchmark]: TraceAbstraction took 1460.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.9 MB). Peak memory consumption was 72.9 MB. Max. memory is 11.5 GB. [2019-01-12 11:25:52,602 INFO L168 Benchmark]: Witness Printer took 61.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 11:25:52,607 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 249.28 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 34.19 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 21.28 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 283.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -157.2 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1460.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.9 MB). Peak memory consumption was 72.9 MB. Max. memory is 11.5 GB. * Witness Printer took 61.55 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: i <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 20 SDtfs, 15 SDslu, 17 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 5 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 59 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 916 SizeOfPredicates, 5 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 9/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...