./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/recursive/recHanoi03_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/recursive/recHanoi03_true-unreach-call_true-no-overflow_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 887ada769b510ae5d273618525924110908f2b5f ........................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 14:56:46,622 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 14:56:46,626 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 14:56:46,642 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 14:56:46,643 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 14:56:46,646 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 14:56:46,648 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 14:56:46,650 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 14:56:46,652 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 14:56:46,654 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 14:56:46,656 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 14:56:46,657 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 14:56:46,658 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 14:56:46,659 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 14:56:46,660 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 14:56:46,660 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 14:56:46,663 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 14:56:46,665 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 14:56:46,677 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 14:56:46,679 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 14:56:46,683 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 14:56:46,684 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 14:56:46,686 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 14:56:46,686 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 14:56:46,686 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 14:56:46,687 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 14:56:46,692 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 14:56:46,692 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 14:56:46,694 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 14:56:46,695 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 14:56:46,695 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 14:56:46,695 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 14:56:46,696 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 14:56:46,696 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 14:56:46,697 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 14:56:46,698 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 14:56:46,698 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 14:56:46,717 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 14:56:46,718 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 14:56:46,719 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 14:56:46,719 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 14:56:46,720 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 14:56:46,720 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 14:56:46,720 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 14:56:46,721 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 14:56:46,721 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 14:56:46,721 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 14:56:46,721 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 14:56:46,721 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 14:56:46,721 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 14:56:46,722 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 14:56:46,723 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 14:56:46,723 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 14:56:46,723 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 14:56:46,723 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 14:56:46,723 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 14:56:46,723 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 14:56:46,724 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 14:56:46,724 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 14:56:46,724 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 14:56:46,724 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 14:56:46,724 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 14:56:46,724 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 14:56:46,725 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 14:56:46,726 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 14:56:46,726 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 -> 887ada769b510ae5d273618525924110908f2b5f [2019-01-12 14:56:46,761 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 14:56:46,775 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 14:56:46,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 14:56:46,781 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 14:56:46,782 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 14:56:46,782 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/recursive/recHanoi03_true-unreach-call_true-no-overflow_true-termination.c [2019-01-12 14:56:46,842 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f90d5b42a/8bc993c83fc146dda491f63c22159863/FLAGbbb97c134 [2019-01-12 14:56:47,337 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 14:56:47,338 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/recursive/recHanoi03_true-unreach-call_true-no-overflow_true-termination.c [2019-01-12 14:56:47,344 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f90d5b42a/8bc993c83fc146dda491f63c22159863/FLAGbbb97c134 [2019-01-12 14:56:47,671 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f90d5b42a/8bc993c83fc146dda491f63c22159863 [2019-01-12 14:56:47,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 14:56:47,677 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 14:56:47,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 14:56:47,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 14:56:47,682 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 14:56:47,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:56:47" (1/1) ... [2019-01-12 14:56:47,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1944673d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47, skipping insertion in model container [2019-01-12 14:56:47,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 02:56:47" (1/1) ... [2019-01-12 14:56:47,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 14:56:47,715 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 14:56:47,948 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:56:47,955 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 14:56:47,976 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 14:56:47,994 INFO L195 MainTranslator]: Completed translation [2019-01-12 14:56:47,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47 WrapperNode [2019-01-12 14:56:47,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 14:56:47,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 14:56:47,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 14:56:47,997 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 14:56:48,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47" (1/1) ... [2019-01-12 14:56:48,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47" (1/1) ... [2019-01-12 14:56:48,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 14:56:48,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 14:56:48,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 14:56:48,045 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 14:56:48,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47" (1/1) ... [2019-01-12 14:56:48,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47" (1/1) ... [2019-01-12 14:56:48,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47" (1/1) ... [2019-01-12 14:56:48,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47" (1/1) ... [2019-01-12 14:56:48,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47" (1/1) ... [2019-01-12 14:56:48,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47" (1/1) ... [2019-01-12 14:56:48,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47" (1/1) ... [2019-01-12 14:56:48,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 14:56:48,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 14:56:48,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 14:56:48,076 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 14:56:48,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 14:56:48,193 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2019-01-12 14:56:48,194 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2019-01-12 14:56:48,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 14:56:48,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 14:56:48,383 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 14:56:48,384 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-12 14:56:48,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:56:48 BoogieIcfgContainer [2019-01-12 14:56:48,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 14:56:48,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 14:56:48,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 14:56:48,390 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 14:56:48,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 02:56:47" (1/3) ... [2019-01-12 14:56:48,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765f69e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:56:48, skipping insertion in model container [2019-01-12 14:56:48,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 02:56:47" (2/3) ... [2019-01-12 14:56:48,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765f69e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 02:56:48, skipping insertion in model container [2019-01-12 14:56:48,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:56:48" (3/3) ... [2019-01-12 14:56:48,395 INFO L112 eAbstractionObserver]: Analyzing ICFG recHanoi03_true-unreach-call_true-no-overflow_true-termination.c [2019-01-12 14:56:48,405 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 14:56:48,412 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 14:56:48,428 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 14:56:48,459 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 14:56:48,461 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 14:56:48,461 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 14:56:48,461 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 14:56:48,461 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 14:56:48,461 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 14:56:48,461 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 14:56:48,462 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 14:56:48,462 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 14:56:48,481 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-01-12 14:56:48,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-12 14:56:48,487 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:56:48,488 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:56:48,491 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:56:48,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:56:48,496 INFO L82 PathProgramCache]: Analyzing trace with hash 2032829855, now seen corresponding path program 1 times [2019-01-12 14:56:48,498 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:56:48,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:56:48,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:48,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:56:48,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:56:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 14:56:48,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 14:56:48,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-12 14:56:48,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-12 14:56:48,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-12 14:56:48,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-12 14:56:48,883 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2019-01-12 14:56:49,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:56:49,050 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-01-12 14:56:49,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-12 14:56:49,053 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-01-12 14:56:49,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:56:49,061 INFO L225 Difference]: With dead ends: 28 [2019-01-12 14:56:49,062 INFO L226 Difference]: Without dead ends: 15 [2019-01-12 14:56:49,065 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-01-12 14:56:49,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-01-12 14:56:49,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-01-12 14:56:49,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-12 14:56:49,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-01-12 14:56:49,100 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2019-01-12 14:56:49,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:56:49,101 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-01-12 14:56:49,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-12 14:56:49,101 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-01-12 14:56:49,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-01-12 14:56:49,103 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:56:49,103 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:56:49,104 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:56:49,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:56:49,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1521841779, now seen corresponding path program 1 times [2019-01-12 14:56:49,104 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:56:49,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:56:49,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:49,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:56:49,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:56:49,448 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-01-12 14:56:49,448 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 14:56:49,448 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-12 14:56:49,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:56:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:56:49,508 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 14:56:49,928 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-01-12 14:56:49,959 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 14:56:49,959 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2019-01-12 14:56:49,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-01-12 14:56:49,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-01-12 14:56:49,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2019-01-12 14:56:49,968 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 13 states. [2019-01-12 14:56:50,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:56:50,386 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2019-01-12 14:56:50,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-01-12 14:56:50,387 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 16 [2019-01-12 14:56:50,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:56:50,389 INFO L225 Difference]: With dead ends: 27 [2019-01-12 14:56:50,389 INFO L226 Difference]: Without dead ends: 21 [2019-01-12 14:56:50,394 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2019-01-12 14:56:50,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-01-12 14:56:50,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-01-12 14:56:50,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-01-12 14:56:50,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-01-12 14:56:50,407 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 16 [2019-01-12 14:56:50,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:56:50,409 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-01-12 14:56:50,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-01-12 14:56:50,409 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-01-12 14:56:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-01-12 14:56:50,411 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:56:50,411 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:56:50,412 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:56:50,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:56:50,412 INFO L82 PathProgramCache]: Analyzing trace with hash -88960435, now seen corresponding path program 2 times [2019-01-12 14:56:50,412 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:56:50,413 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:56:50,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:50,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 14:56:50,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:50,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:56:50,856 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-01-12 14:56:50,856 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 14:56:50,856 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-12 14:56:50,872 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-12 14:56:50,899 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-01-12 14:56:50,900 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-12 14:56:50,905 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 14:56:51,387 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-01-12 14:56:51,413 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 14:56:51,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2019-01-12 14:56:51,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-01-12 14:56:51,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-01-12 14:56:51,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2019-01-12 14:56:51,416 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 21 states. [2019-01-12 14:56:52,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:56:52,172 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2019-01-12 14:56:52,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-01-12 14:56:52,172 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 28 [2019-01-12 14:56:52,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:56:52,175 INFO L225 Difference]: With dead ends: 39 [2019-01-12 14:56:52,175 INFO L226 Difference]: Without dead ends: 33 [2019-01-12 14:56:52,176 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=143, Invalid=979, Unknown=0, NotChecked=0, Total=1122 [2019-01-12 14:56:52,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-01-12 14:56:52,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-01-12 14:56:52,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-01-12 14:56:52,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2019-01-12 14:56:52,184 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 28 [2019-01-12 14:56:52,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:56:52,185 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2019-01-12 14:56:52,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-01-12 14:56:52,185 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2019-01-12 14:56:52,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-01-12 14:56:52,187 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 14:56:52,187 INFO L402 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 14:56:52,188 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 14:56:52,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 14:56:52,188 INFO L82 PathProgramCache]: Analyzing trace with hash 608531405, now seen corresponding path program 3 times [2019-01-12 14:56:52,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 14:56:52,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 14:56:52,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:52,190 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-12 14:56:52,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 14:56:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 14:56:52,740 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2019-01-12 14:56:52,740 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 14:56:52,740 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 14:56:52,750 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-12 14:56:52,776 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2019-01-12 14:56:52,776 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-12 14:56:52,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 14:57:00,374 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 73 proven. 0 refuted. 4 times theorem prover too weak. 77 trivial. 0 not checked. [2019-01-12 14:57:00,403 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 14:57:00,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2019-01-12 14:57:00,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-01-12 14:57:00,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-01-12 14:57:00,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1281, Unknown=4, NotChecked=0, Total=1406 [2019-01-12 14:57:00,408 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 38 states. [2019-01-12 14:57:02,494 WARN L181 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 31 [2019-01-12 14:57:08,714 WARN L181 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 35 [2019-01-12 14:57:15,891 WARN L181 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 71 DAG size of output: 38 [2019-01-12 14:57:22,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 14:57:22,336 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-01-12 14:57:22,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-01-12 14:57:22,336 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 52 [2019-01-12 14:57:22,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 14:57:22,337 INFO L225 Difference]: With dead ends: 33 [2019-01-12 14:57:22,337 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 14:57:22,340 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 18.3s TimeCoverageRelationStatistics Valid=351, Invalid=2612, Unknown=7, NotChecked=0, Total=2970 [2019-01-12 14:57:22,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 14:57:22,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 14:57:22,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 14:57:22,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 14:57:22,341 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2019-01-12 14:57:22,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 14:57:22,341 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 14:57:22,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-01-12 14:57:22,342 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 14:57:22,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 14:57:22,350 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 14:57:22,374 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 19) no Hoare annotation was computed. [2019-01-12 14:57:22,374 INFO L448 ceAbstractionStarter]: For program point hanoiEXIT(lines 16 21) no Hoare annotation was computed. [2019-01-12 14:57:22,374 INFO L451 ceAbstractionStarter]: At program point hanoiENTRY(lines 16 21) the Hoare annotation is: true [2019-01-12 14:57:22,374 INFO L448 ceAbstractionStarter]: For program point hanoiFINAL(lines 16 21) no Hoare annotation was computed. [2019-01-12 14:57:22,375 INFO L444 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (<= |hanoi_#in~n| hanoi_~n) [2019-01-12 14:57:22,375 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-01-12 14:57:22,375 INFO L448 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2019-01-12 14:57:22,375 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 14:57:22,375 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 34) no Hoare annotation was computed. [2019-01-12 14:57:22,375 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 14:57:22,375 INFO L444 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: (<= ULTIMATE.start_main_~n~0 31) [2019-01-12 14:57:22,375 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 14:57:22,375 INFO L448 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2019-01-12 14:57:22,376 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 28) no Hoare annotation was computed. [2019-01-12 14:57:22,376 INFO L451 ceAbstractionStarter]: At program point L24(lines 24 35) the Hoare annotation is: true [2019-01-12 14:57:22,376 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2019-01-12 14:57:22,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 02:57:22 BoogieIcfgContainer [2019-01-12 14:57:22,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 14:57:22,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 14:57:22,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 14:57:22,384 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 14:57:22,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 02:56:48" (3/4) ... [2019-01-12 14:57:22,387 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 14:57:22,393 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure hanoi [2019-01-12 14:57:22,398 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-01-12 14:57:22,398 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 14:57:22,447 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 14:57:22,447 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 14:57:22,448 INFO L168 Benchmark]: Toolchain (without parser) took 34772.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 193.5 MB). Free memory was 954.0 MB in the beginning and 936.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 210.7 MB. Max. memory is 11.5 GB. [2019-01-12 14:57:22,450 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 14:57:22,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.77 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 942.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-01-12 14:57:22,451 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.96 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 14:57:22,451 INFO L168 Benchmark]: Boogie Preprocessor took 30.69 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 14:57:22,453 INFO L168 Benchmark]: RCFGBuilder took 309.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-01-12 14:57:22,454 INFO L168 Benchmark]: TraceAbstraction took 33995.65 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.1 MB). Free memory was 1.1 GB in the beginning and 944.3 MB in the end (delta: 158.6 MB). Peak memory consumption was 224.6 MB. Max. memory is 11.5 GB. [2019-01-12 14:57:22,454 INFO L168 Benchmark]: Witness Printer took 64.17 ms. Allocated memory is still 1.2 GB. Free memory was 944.3 MB in the beginning and 936.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2019-01-12 14:57:22,460 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 318.77 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 942.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.96 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.69 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 309.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -160.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 33995.65 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.1 MB). Free memory was 1.1 GB in the beginning and 944.3 MB in the end (delta: 158.6 MB). Peak memory consumption was 224.6 MB. Max. memory is 11.5 GB. * Witness Printer took 64.17 ms. Allocated memory is still 1.2 GB. Free memory was 944.3 MB in the beginning and 936.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 33]: 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: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 1 error locations. SAFE Result, 33.9s OverallTime, 4 OverallIterations, 8 TraceHistogramMax, 23.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 26 SDslu, 382 SDs, 0 SdLazy, 776 SolverSat, 16 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 11.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 583 ImplicationChecksByTransitivity, 20.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 6 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 10.0s InterpolantComputationTime, 202 NumberOfCodeBlocks, 202 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 195 ConstructedInterpolants, 36 QuantifiedInterpolants, 64935 SizeOfPredicates, 12 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 261/376 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...