./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2797de73b923a7fbf0f091cb97be1331c2699e2c ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 17:24:02,420 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:24:02,422 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:24:02,435 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:24:02,436 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:24:02,437 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:24:02,438 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:24:02,442 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:24:02,443 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:24:02,444 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:24:02,445 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:24:02,445 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:24:02,446 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:24:02,449 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:24:02,450 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:24:02,451 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:24:02,453 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:24:02,455 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:24:02,457 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:24:02,458 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:24:02,459 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:24:02,460 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:24:02,462 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:24:02,463 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:24:02,463 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:24:02,464 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:24:02,465 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:24:02,465 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:24:02,466 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:24:02,467 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:24:02,467 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:24:02,468 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:24:02,468 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:24:02,468 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:24:02,469 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:24:02,471 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:24:02,471 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:24:02,489 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:24:02,490 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:24:02,491 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:24:02,491 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:24:02,491 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:24:02,491 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:24:02,491 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:24:02,492 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:24:02,492 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:24:02,492 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:24:02,492 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:24:02,492 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:24:02,492 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:24:02,493 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:24:02,493 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:24:02,493 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:24:02,493 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:24:02,493 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:24:02,493 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:24:02,494 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:24:02,494 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:24:02,494 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:24:02,494 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:24:02,494 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:24:02,495 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:24:02,495 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:24:02,495 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:24:02,495 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 -> 2797de73b923a7fbf0f091cb97be1331c2699e2c [2019-01-14 17:24:02,534 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:24:02,546 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:24:02,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:24:02,551 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:24:02,551 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:24:02,552 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i [2019-01-14 17:24:02,610 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/927246b3b/71f75160e9184cd58b58b26071f0e87e/FLAGe3d58e8e7 [2019-01-14 17:24:03,002 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:24:03,002 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-acceleration/underapprox_true-unreach-call2_true-termination.i [2019-01-14 17:24:03,009 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/927246b3b/71f75160e9184cd58b58b26071f0e87e/FLAGe3d58e8e7 [2019-01-14 17:24:03,365 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/927246b3b/71f75160e9184cd58b58b26071f0e87e [2019-01-14 17:24:03,368 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:24:03,369 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:24:03,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:24:03,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:24:03,374 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:24:03,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:24:03" (1/1) ... [2019-01-14 17:24:03,377 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11d6f0ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03, skipping insertion in model container [2019-01-14 17:24:03,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:24:03" (1/1) ... [2019-01-14 17:24:03,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:24:03,398 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:24:03,541 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:24:03,545 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:24:03,561 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:24:03,576 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:24:03,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03 WrapperNode [2019-01-14 17:24:03,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:24:03,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:24:03,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:24:03,578 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:24:03,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03" (1/1) ... [2019-01-14 17:24:03,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03" (1/1) ... [2019-01-14 17:24:03,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:24:03,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:24:03,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:24:03,616 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:24:03,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03" (1/1) ... [2019-01-14 17:24:03,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03" (1/1) ... [2019-01-14 17:24:03,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03" (1/1) ... [2019-01-14 17:24:03,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03" (1/1) ... [2019-01-14 17:24:03,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03" (1/1) ... [2019-01-14 17:24:03,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03" (1/1) ... [2019-01-14 17:24:03,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03" (1/1) ... [2019-01-14 17:24:03,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:24:03,640 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:24:03,640 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:24:03,640 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:24:03,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:24:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:24:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:24:03,939 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:24:03,939 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 17:24:03,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:24:03 BoogieIcfgContainer [2019-01-14 17:24:03,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:24:03,941 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:24:03,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:24:03,944 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:24:03,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:24:03" (1/3) ... [2019-01-14 17:24:03,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcbb0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:24:03, skipping insertion in model container [2019-01-14 17:24:03,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:24:03" (2/3) ... [2019-01-14 17:24:03,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dcbb0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:24:03, skipping insertion in model container [2019-01-14 17:24:03,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:24:03" (3/3) ... [2019-01-14 17:24:03,948 INFO L112 eAbstractionObserver]: Analyzing ICFG underapprox_true-unreach-call2_true-termination.i [2019-01-14 17:24:03,957 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:24:03,964 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:24:03,979 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:24:04,007 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:24:04,008 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:24:04,008 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:24:04,008 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:24:04,009 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:24:04,009 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:24:04,009 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:24:04,009 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:24:04,009 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:24:04,024 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-01-14 17:24:04,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 17:24:04,032 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:24:04,033 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 17:24:04,040 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:24:04,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:24:04,046 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-01-14 17:24:04,048 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:24:04,048 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:24:04,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:24:04,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:24:04,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:24:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:24:04,352 WARN L181 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 5 [2019-01-14 17:24:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:24:04,360 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:24:04,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 17:24:04,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 17:24:04,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 17:24:04,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 17:24:04,378 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2019-01-14 17:24:04,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:24:04,427 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-01-14 17:24:04,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 17:24:04,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-01-14 17:24:04,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:24:04,437 INFO L225 Difference]: With dead ends: 17 [2019-01-14 17:24:04,437 INFO L226 Difference]: Without dead ends: 7 [2019-01-14 17:24:04,440 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 17:24:04,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-01-14 17:24:04,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-01-14 17:24:04,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-14 17:24:04,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-01-14 17:24:04,466 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-01-14 17:24:04,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:24:04,466 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-01-14 17:24:04,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 17:24:04,467 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-01-14 17:24:04,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 17:24:04,467 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:24:04,467 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 17:24:04,468 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:24:04,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:24:04,468 INFO L82 PathProgramCache]: Analyzing trace with hash 925620370, now seen corresponding path program 1 times [2019-01-14 17:24:04,468 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:24:04,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:24:04,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:24:04,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:24:04,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:24:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:24:04,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:24:04,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:24:04,600 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 17:24:04,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:24:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:24:04,636 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:24:04,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:24:04,709 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:24:04,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2019-01-14 17:24:04,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 17:24:04,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 17:24:04,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 17:24:04,711 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2019-01-14 17:24:04,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:24:04,784 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-01-14 17:24:04,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 17:24:04,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-01-14 17:24:04,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:24:04,785 INFO L225 Difference]: With dead ends: 12 [2019-01-14 17:24:04,785 INFO L226 Difference]: Without dead ends: 8 [2019-01-14 17:24:04,787 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 17:24:04,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-14 17:24:04,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-14 17:24:04,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-14 17:24:04,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-01-14 17:24:04,789 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-01-14 17:24:04,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:24:04,790 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-01-14 17:24:04,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 17:24:04,790 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-01-14 17:24:04,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 17:24:04,791 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:24:04,791 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-01-14 17:24:04,791 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:24:04,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:24:04,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1368874232, now seen corresponding path program 2 times [2019-01-14 17:24:04,792 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:24:04,792 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:24:04,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:24:04,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:24:04,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:24:04,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:24:05,035 WARN L181 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2019-01-14 17:24:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:24:05,042 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:24:05,042 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 17:24:05,053 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-14 17:24:05,092 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-01-14 17:24:05,092 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 17:24:05,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:24:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:24:05,267 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:24:05,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2019-01-14 17:24:05,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-14 17:24:05,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-14 17:24:05,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-14 17:24:05,268 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 6 states. [2019-01-14 17:24:05,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:24:05,325 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-01-14 17:24:05,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 17:24:05,326 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2019-01-14 17:24:05,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:24:05,327 INFO L225 Difference]: With dead ends: 13 [2019-01-14 17:24:05,327 INFO L226 Difference]: Without dead ends: 9 [2019-01-14 17:24:05,328 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-14 17:24:05,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-01-14 17:24:05,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-01-14 17:24:05,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-14 17:24:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-01-14 17:24:05,332 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-01-14 17:24:05,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:24:05,332 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-01-14 17:24:05,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-14 17:24:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-01-14 17:24:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-14 17:24:05,333 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:24:05,333 INFO L402 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1] [2019-01-14 17:24:05,335 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:24:05,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:24:05,335 INFO L82 PathProgramCache]: Analyzing trace with hash 516237138, now seen corresponding path program 3 times [2019-01-14 17:24:05,335 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:24:05,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:24:05,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:24:05,338 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 17:24:05,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:24:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:24:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:24:05,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:24:05,515 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 [2019-01-14 17:24:05,524 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-14 17:24:05,534 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-01-14 17:24:05,534 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 17:24:05,535 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:24:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-01-14 17:24:05,727 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-14 17:24:05,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2019-01-14 17:24:05,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-01-14 17:24:05,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-01-14 17:24:05,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-01-14 17:24:05,729 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 9 states. [2019-01-14 17:24:05,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:24:05,854 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-01-14 17:24:05,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-14 17:24:05,854 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2019-01-14 17:24:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:24:05,855 INFO L225 Difference]: With dead ends: 12 [2019-01-14 17:24:05,855 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:24:05,856 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-01-14 17:24:05,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:24:05,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:24:05,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:24:05,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:24:05,857 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-01-14 17:24:05,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:24:05,858 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:24:05,858 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-01-14 17:24:05,858 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:24:05,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:24:05,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:24:05,955 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:24:05,955 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-01-14 17:24:05,957 INFO L444 ceAbstractionStarter]: At program point L11-2(lines 11 14) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~x~0 0) (<= 0 ULTIMATE.start_main_~x~0)) (< (mod (+ ULTIMATE.start_main_~x~0 4294967295) 4294967296) 6)) [2019-01-14 17:24:05,957 INFO L448 ceAbstractionStarter]: For program point L11-3(lines 11 14) no Hoare annotation was computed. [2019-01-14 17:24:05,957 INFO L448 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2019-01-14 17:24:05,957 INFO L451 ceAbstractionStarter]: At program point L3-2(lines 1 16) the Hoare annotation is: true [2019-01-14 17:24:05,957 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:24:05,957 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:24:05,958 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-01-14 17:24:05,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:24:05 BoogieIcfgContainer [2019-01-14 17:24:05,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:24:05,969 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:24:05,969 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:24:05,969 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:24:05,970 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:24:03" (3/4) ... [2019-01-14 17:24:05,973 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:24:05,982 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-14 17:24:05,982 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 17:24:06,019 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:24:06,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:24:06,020 INFO L168 Benchmark]: Toolchain (without parser) took 2651.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 947.3 MB in the beginning and 1.0 GB in the end (delta: -80.3 MB). Peak memory consumption was 56.6 MB. Max. memory is 11.5 GB. [2019-01-14 17:24:06,021 INFO L168 Benchmark]: CDTParser took 0.18 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. [2019-01-14 17:24:06,024 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.44 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:24:06,025 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.09 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. [2019-01-14 17:24:06,025 INFO L168 Benchmark]: Boogie Preprocessor took 23.40 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. [2019-01-14 17:24:06,025 INFO L168 Benchmark]: RCFGBuilder took 300.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-01-14 17:24:06,026 INFO L168 Benchmark]: TraceAbstraction took 2026.93 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: 85.9 MB). Peak memory consumption was 85.9 MB. Max. memory is 11.5 GB. [2019-01-14 17:24:06,027 INFO L168 Benchmark]: Witness Printer took 50.27 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. [2019-01-14 17:24:06,031 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 207.44 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 38.09 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 23.40 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 300.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2026.93 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: 85.9 MB). Peak memory consumption was 85.9 MB. Max. memory is 11.5 GB. * Witness Printer took 50.27 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: 4]: 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: 1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (x <= 0 && 0 <= x) || (x + 4294967295) % 4294967296 < 6 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 3 SDslu, 16 SDs, 0 SdLazy, 61 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 8 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 47 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 976 SizeOfPredicates, 3 NumberOfNonLiveVariables, 67 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 6/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...