./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.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-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.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 8d39666f7b9e3c393826226f879477647e7209cc ................................................................................................................................................................................................................................................................................................................................................................................. 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 15:11:59,543 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 15:11:59,545 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 15:11:59,559 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 15:11:59,560 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 15:11:59,561 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 15:11:59,562 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 15:11:59,565 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 15:11:59,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 15:11:59,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 15:11:59,569 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 15:11:59,569 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 15:11:59,570 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 15:11:59,571 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 15:11:59,572 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 15:11:59,573 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 15:11:59,574 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 15:11:59,576 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 15:11:59,578 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 15:11:59,579 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 15:11:59,581 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 15:11:59,584 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 15:11:59,586 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 15:11:59,586 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 15:11:59,587 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 15:11:59,588 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 15:11:59,589 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 15:11:59,594 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 15:11:59,596 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 15:11:59,600 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 15:11:59,600 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 15:11:59,601 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 15:11:59,601 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 15:11:59,601 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 15:11:59,606 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 15:11:59,606 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 15:11:59,607 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 15:11:59,639 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 15:11:59,639 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 15:11:59,645 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 15:11:59,646 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 15:11:59,646 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 15:11:59,646 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 15:11:59,646 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 15:11:59,647 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 15:11:59,647 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 15:11:59,647 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 15:11:59,647 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 15:11:59,648 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 15:11:59,648 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 15:11:59,648 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 15:11:59,648 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 15:11:59,648 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 15:11:59,648 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 15:11:59,649 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 15:11:59,649 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 15:11:59,649 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 15:11:59,649 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 15:11:59,649 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 15:11:59,650 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 15:11:59,651 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 15:11:59,651 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 15:11:59,651 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 15:11:59,652 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 15:11:59,652 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 15:11:59,652 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 -> 8d39666f7b9e3c393826226f879477647e7209cc [2019-01-12 15:11:59,712 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 15:11:59,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 15:11:59,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 15:11:59,742 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 15:11:59,742 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 15:11:59,743 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2019-01-12 15:11:59,810 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e2692bd2/abac1723129d44d199975a15c4be8cd0/FLAG84ada36a9 [2019-01-12 15:12:00,313 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 15:12:00,314 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/recursive-simple/id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2019-01-12 15:12:00,320 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e2692bd2/abac1723129d44d199975a15c4be8cd0/FLAG84ada36a9 [2019-01-12 15:12:00,693 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e2692bd2/abac1723129d44d199975a15c4be8cd0 [2019-01-12 15:12:00,697 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 15:12:00,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 15:12:00,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 15:12:00,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 15:12:00,704 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 15:12:00,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 03:12:00" (1/1) ... [2019-01-12 15:12:00,707 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 03:12:00, skipping insertion in model container [2019-01-12 15:12:00,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 03:12:00" (1/1) ... [2019-01-12 15:12:00,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 15:12:00,730 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 15:12:00,938 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 15:12:00,948 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 15:12:00,967 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 15:12:00,980 INFO L195 MainTranslator]: Completed translation [2019-01-12 15:12:00,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 03:12:00 WrapperNode [2019-01-12 15:12:00,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 15:12:00,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 15:12:00,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 15:12:00,982 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 15:12:00,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 03:12:00" (1/1) ... [2019-01-12 15:12:00,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 03:12:00" (1/1) ... [2019-01-12 15:12:01,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 15:12:01,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 15:12:01,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 15:12:01,028 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 15:12:01,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 03:12:00" (1/1) ... [2019-01-12 15:12:01,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 03:12:00" (1/1) ... [2019-01-12 15:12:01,040 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 03:12:00" (1/1) ... [2019-01-12 15:12:01,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 03:12:00" (1/1) ... [2019-01-12 15:12:01,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 03:12:00" (1/1) ... [2019-01-12 15:12:01,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 03:12:00" (1/1) ... [2019-01-12 15:12:01,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 03:12:00" (1/1) ... [2019-01-12 15:12:01,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 15:12:01,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 15:12:01,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 15:12:01,054 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 15:12:01,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 03:12:00" (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 15:12:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 15:12:01,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 15:12:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-01-12 15:12:01,178 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-01-12 15:12:01,355 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 15:12:01,355 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-12 15:12:01,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 03:12:01 BoogieIcfgContainer [2019-01-12 15:12:01,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 15:12:01,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 15:12:01,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 15:12:01,362 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 15:12:01,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 03:12:00" (1/3) ... [2019-01-12 15:12:01,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1915bbc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 03:12:01, skipping insertion in model container [2019-01-12 15:12:01,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 03:12:00" (2/3) ... [2019-01-12 15:12:01,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1915bbc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 03:12:01, skipping insertion in model container [2019-01-12 15:12:01,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 03:12:01" (3/3) ... [2019-01-12 15:12:01,367 INFO L112 eAbstractionObserver]: Analyzing ICFG id_b3_o5_true-unreach-call_true-termination_true-no-overflow.c [2019-01-12 15:12:01,375 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 15:12:01,383 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 15:12:01,399 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 15:12:01,428 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 15:12:01,429 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 15:12:01,429 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 15:12:01,429 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 15:12:01,429 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 15:12:01,429 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 15:12:01,429 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 15:12:01,430 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 15:12:01,430 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 15:12:01,446 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-01-12 15:12:01,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-12 15:12:01,451 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 15:12:01,453 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 15:12:01,455 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 15:12:01,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 15:12:01,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1224902363, now seen corresponding path program 1 times [2019-01-12 15:12:01,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 15:12:01,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 15:12:01,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 15:12:01,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 15:12:01,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 15:12:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 15:12:01,743 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 15:12:01,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 15:12:01,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-12 15:12:01,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 15:12:01,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 15:12:01,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 15:12:01,769 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2019-01-12 15:12:01,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 15:12:01,848 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2019-01-12 15:12:01,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-12 15:12:01,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-01-12 15:12:01,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 15:12:01,859 INFO L225 Difference]: With dead ends: 28 [2019-01-12 15:12:01,859 INFO L226 Difference]: Without dead ends: 15 [2019-01-12 15:12:01,862 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 15:12:01,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-01-12 15:12:01,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-01-12 15:12:01,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-01-12 15:12:01,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-01-12 15:12:01,897 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 9 [2019-01-12 15:12:01,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 15:12:01,898 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-01-12 15:12:01,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 15:12:01,898 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-01-12 15:12:01,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-01-12 15:12:01,900 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 15:12:01,900 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 15:12:01,901 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 15:12:01,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 15:12:01,901 INFO L82 PathProgramCache]: Analyzing trace with hash 510739163, now seen corresponding path program 1 times [2019-01-12 15:12:01,901 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 15:12:01,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 15:12:01,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 15:12:01,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 15:12:01,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 15:12:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 15:12:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-01-12 15:12:01,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 15:12:01,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-12 15:12:01,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 15:12:01,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 15:12:02,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 15:12:02,000 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 5 states. [2019-01-12 15:12:02,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 15:12:02,048 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2019-01-12 15:12:02,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-12 15:12:02,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-01-12 15:12:02,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 15:12:02,051 INFO L225 Difference]: With dead ends: 27 [2019-01-12 15:12:02,052 INFO L226 Difference]: Without dead ends: 19 [2019-01-12 15:12:02,054 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 15:12:02,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-12 15:12:02,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2019-01-12 15:12:02,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-01-12 15:12:02,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-01-12 15:12:02,060 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 16 [2019-01-12 15:12:02,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 15:12:02,061 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-01-12 15:12:02,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 15:12:02,061 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-01-12 15:12:02,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-01-12 15:12:02,062 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 15:12:02,062 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 15:12:02,062 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 15:12:02,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 15:12:02,063 INFO L82 PathProgramCache]: Analyzing trace with hash 539368314, now seen corresponding path program 1 times [2019-01-12 15:12:02,063 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 15:12:02,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 15:12:02,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 15:12:02,064 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 15:12:02,064 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 15:12:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 15:12:02,291 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 15:12:02,291 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-12 15:12:02,291 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 15:12:02,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 15:12:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 15:12:02,351 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 15:12:02,606 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 15:12:02,638 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-12 15:12:02,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2019-01-12 15:12:02,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-12 15:12:02,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-12 15:12:02,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-01-12 15:12:02,640 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 10 states. [2019-01-12 15:12:02,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 15:12:02,772 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2019-01-12 15:12:02,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-12 15:12:02,774 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2019-01-12 15:12:02,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 15:12:02,775 INFO L225 Difference]: With dead ends: 23 [2019-01-12 15:12:02,775 INFO L226 Difference]: Without dead ends: 19 [2019-01-12 15:12:02,776 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-01-12 15:12:02,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-01-12 15:12:02,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-01-12 15:12:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-12 15:12:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-01-12 15:12:02,781 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2019-01-12 15:12:02,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 15:12:02,782 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-01-12 15:12:02,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-12 15:12:02,782 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-01-12 15:12:02,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-01-12 15:12:02,783 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 15:12:02,783 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 15:12:02,783 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 15:12:02,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 15:12:02,784 INFO L82 PathProgramCache]: Analyzing trace with hash -747825770, now seen corresponding path program 1 times [2019-01-12 15:12:02,784 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 15:12:02,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 15:12:02,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 15:12:02,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 15:12:02,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 15:12:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 15:12:02,849 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-01-12 15:12:02,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 15:12:02,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-12 15:12:02,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 15:12:02,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 15:12:02,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 15:12:02,851 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 5 states. [2019-01-12 15:12:02,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 15:12:02,875 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-01-12 15:12:02,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-12 15:12:02,876 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2019-01-12 15:12:02,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 15:12:02,877 INFO L225 Difference]: With dead ends: 19 [2019-01-12 15:12:02,877 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 15:12:02,878 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-12 15:12:02,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 15:12:02,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 15:12:02,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 15:12:02,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 15:12:02,879 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2019-01-12 15:12:02,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 15:12:02,880 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 15:12:02,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 15:12:02,880 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 15:12:02,880 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 15:12:02,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 15:12:02,905 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 15:12:02,905 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 15:12:02,905 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2019-01-12 15:12:02,906 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 15:12:02,906 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-01-12 15:12:02,906 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2019-01-12 15:12:02,906 INFO L451 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: true [2019-01-12 15:12:02,906 INFO L448 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2019-01-12 15:12:02,907 INFO L448 ceAbstractionStarter]: For program point L11(lines 11 17) no Hoare annotation was computed. [2019-01-12 15:12:02,908 INFO L448 ceAbstractionStarter]: For program point idFINAL(lines 4 9) no Hoare annotation was computed. [2019-01-12 15:12:02,908 INFO L448 ceAbstractionStarter]: For program point idEXIT(lines 4 9) no Hoare annotation was computed. [2019-01-12 15:12:02,908 INFO L451 ceAbstractionStarter]: At program point idENTRY(lines 4 9) the Hoare annotation is: true [2019-01-12 15:12:02,908 INFO L448 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2019-01-12 15:12:02,908 INFO L451 ceAbstractionStarter]: At program point L6(line 6) the Hoare annotation is: true [2019-01-12 15:12:02,908 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-01-12 15:12:02,909 INFO L448 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-01-12 15:12:02,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 03:12:02 BoogieIcfgContainer [2019-01-12 15:12:02,912 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 15:12:02,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 15:12:02,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 15:12:02,914 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 15:12:02,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 03:12:01" (3/4) ... [2019-01-12 15:12:02,919 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 15:12:02,926 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2019-01-12 15:12:02,930 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-01-12 15:12:02,930 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 15:12:02,975 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 15:12:02,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 15:12:02,976 INFO L168 Benchmark]: Toolchain (without parser) took 2278.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 948.7 MB in the beginning and 1.0 GB in the end (delta: -83.1 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2019-01-12 15:12:02,978 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 15:12:02,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.71 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 936.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-01-12 15:12:02,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.42 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 15:12:02,980 INFO L168 Benchmark]: Boogie Preprocessor took 25.11 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 15:12:02,981 INFO L168 Benchmark]: RCFGBuilder took 304.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-01-12 15:12:02,982 INFO L168 Benchmark]: TraceAbstraction took 1554.28 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: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. [2019-01-12 15:12:02,983 INFO L168 Benchmark]: Witness Printer took 61.82 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 15:12:02,988 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 281.71 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 936.6 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 45.42 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.11 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 304.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -161.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1554.28 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: 65.8 MB). Peak memory consumption was 65.8 MB. Max. memory is 11.5 GB. * Witness Printer took 61.82 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: 15]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 57 SDtfs, 7 SDslu, 194 SDs, 0 SdLazy, 61 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 2063 SizeOfPredicates, 2 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 23/27 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...