java -Xmx8000000000 -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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/vogal_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 08:01:12,336 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 08:01:12,338 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 08:01:12,355 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 08:01:12,357 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 08:01:12,360 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 08:01:12,361 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 08:01:12,364 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 08:01:12,365 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 08:01:12,366 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 08:01:12,367 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 08:01:12,368 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 08:01:12,370 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 08:01:12,371 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 08:01:12,372 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 08:01:12,376 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 08:01:12,377 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 08:01:12,385 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 08:01:12,388 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 08:01:12,395 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 08:01:12,396 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 08:01:12,397 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 08:01:12,402 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 08:01:12,403 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 08:01:12,403 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 08:01:12,404 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 08:01:12,406 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 08:01:12,407 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 08:01:12,410 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 08:01:12,411 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 08:01:12,412 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 08:01:12,414 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 08:01:12,415 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 08:01:12,415 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 08:01:12,417 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 08:01:12,418 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 08:01:12,418 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 08:01:12,448 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 08:01:12,448 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 08:01:12,450 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 08:01:12,450 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 08:01:12,450 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 08:01:12,451 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 08:01:12,451 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 08:01:12,451 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 08:01:12,451 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 08:01:12,452 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 08:01:12,452 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 08:01:12,452 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 08:01:12,452 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 08:01:12,453 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 08:01:12,454 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 08:01:12,454 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 08:01:12,454 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 08:01:12,454 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 08:01:12,454 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 08:01:12,454 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 08:01:12,455 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 08:01:12,455 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 08:01:12,455 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 08:01:12,455 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 08:01:12,457 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 08:01:12,457 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 08:01:12,458 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 08:01:12,458 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 08:01:12,458 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 08:01:12,458 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 08:01:12,458 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 08:01:12,459 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 08:01:12,459 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 08:01:12,459 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 08:01:12,459 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 08:01:12,524 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 08:01:12,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 08:01:12,546 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 08:01:12,548 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 08:01:12,549 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 08:01:12,550 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/vogal_true-unreach-call.i [2018-09-19 08:01:12,927 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/872b2b64b/df87a13ff4334eb299cfcc606851a37c/FLAG9e4d0391e [2018-09-19 08:01:13,076 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 08:01:13,077 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/vogal_true-unreach-call.i [2018-09-19 08:01:13,082 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/872b2b64b/df87a13ff4334eb299cfcc606851a37c/FLAG9e4d0391e [2018-09-19 08:01:13,097 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/872b2b64b/df87a13ff4334eb299cfcc606851a37c [2018-09-19 08:01:13,108 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 08:01:13,111 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 08:01:13,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:13,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 08:01:13,118 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 08:01:13,119 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:13" (1/1) ... [2018-09-19 08:01:13,122 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@130d9e13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13, skipping insertion in model container [2018-09-19 08:01:13,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 08:01:13" (1/1) ... [2018-09-19 08:01:13,135 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 08:01:13,356 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:13,376 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 08:01:13,396 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 08:01:13,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13 WrapperNode [2018-09-19 08:01:13,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 08:01:13,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:13,417 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 08:01:13,417 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 08:01:13,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13" (1/1) ... [2018-09-19 08:01:13,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13" (1/1) ... [2018-09-19 08:01:13,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 08:01:13,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 08:01:13,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 08:01:13,443 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 08:01:13,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13" (1/1) ... [2018-09-19 08:01:13,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13" (1/1) ... [2018-09-19 08:01:13,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13" (1/1) ... [2018-09-19 08:01:13,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13" (1/1) ... [2018-09-19 08:01:13,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13" (1/1) ... [2018-09-19 08:01:13,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13" (1/1) ... [2018-09-19 08:01:13,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13" (1/1) ... [2018-09-19 08:01:13,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 08:01:13,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 08:01:13,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 08:01:13,489 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 08:01:13,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13" (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 [2018-09-19 08:01:13,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 08:01:13,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 08:01:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 08:01:13,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 08:01:13,667 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 08:01:13,668 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 08:01:13,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 08:01:13,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 08:01:14,317 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 08:01:14,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:14 BoogieIcfgContainer [2018-09-19 08:01:14,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 08:01:14,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 08:01:14,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 08:01:14,323 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 08:01:14,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 08:01:13" (1/3) ... [2018-09-19 08:01:14,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26db63dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:14, skipping insertion in model container [2018-09-19 08:01:14,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 08:01:13" (2/3) ... [2018-09-19 08:01:14,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26db63dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 08:01:14, skipping insertion in model container [2018-09-19 08:01:14,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 08:01:14" (3/3) ... [2018-09-19 08:01:14,328 INFO L112 eAbstractionObserver]: Analyzing ICFG vogal_true-unreach-call.i [2018-09-19 08:01:14,337 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 08:01:14,345 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 08:01:14,398 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 08:01:14,399 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 08:01:14,399 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 08:01:14,399 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 08:01:14,400 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 08:01:14,400 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 08:01:14,400 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 08:01:14,400 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 08:01:14,400 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 08:01:14,422 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-09-19 08:01:14,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-19 08:01:14,429 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:14,430 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:14,432 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:14,437 INFO L82 PathProgramCache]: Analyzing trace with hash 71711704, now seen corresponding path program 1 times [2018-09-19 08:01:14,440 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:14,442 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-19 08:01:14,444 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [22], [34], [36], [67], [69], [101], [106], [109], [111], [117], [118], [119], [121] [2018-09-19 08:01:14,499 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:14,499 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:14,543 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 08:01:14,544 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-09-19 08:01:14,566 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 08:01:14,607 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-09-19 08:01:14,607 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 08:01:14,611 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 08:01:14,613 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 08:01:14,613 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 08:01:14,613 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 08:01:14,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 08:01:14,625 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 08:01:14,626 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 08:01:14,628 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-09-19 08:01:14,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 08:01:14,655 INFO L93 Difference]: Finished difference Result 70 states and 99 transitions. [2018-09-19 08:01:14,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 08:01:14,657 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-09-19 08:01:14,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 08:01:14,667 INFO L225 Difference]: With dead ends: 70 [2018-09-19 08:01:14,667 INFO L226 Difference]: Without dead ends: 32 [2018-09-19 08:01:14,671 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 08:01:14,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-09-19 08:01:14,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-09-19 08:01:14,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-09-19 08:01:14,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2018-09-19 08:01:14,707 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 16 [2018-09-19 08:01:14,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 08:01:14,707 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2018-09-19 08:01:14,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 08:01:14,708 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2018-09-19 08:01:14,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-19 08:01:14,709 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 08:01:14,709 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 08:01:14,710 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 08:01:14,710 INFO L82 PathProgramCache]: Analyzing trace with hash -2106174859, now seen corresponding path program 1 times [2018-09-19 08:01:14,710 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 08:01:14,711 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-19 08:01:14,711 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [22], [26], [30], [36], [40], [43], [69], [73], [77], [106], [109], [111], [117], [118], [119], [121] [2018-09-19 08:01:14,714 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 08:01:14,714 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 08:01:14,753 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 08:01:14,789 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 08:01:14,789 INFO L272 AbstractInterpreter]: Visited 20 different actions 20 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-09-19 08:01:14,796 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 08:01:14,815 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 08:01:14,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 08:01:14 BoogieIcfgContainer [2018-09-19 08:01:14,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 08:01:14,817 INFO L168 Benchmark]: Toolchain (without parser) took 1708.56 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -736.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:14,819 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:01:14,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:14,821 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.36 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:01:14,822 INFO L168 Benchmark]: Boogie Preprocessor took 45.02 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 08:01:14,822 INFO L168 Benchmark]: RCFGBuilder took 830.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -774.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:14,823 INFO L168 Benchmark]: TraceAbstraction took 496.82 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2018-09-19 08:01:14,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 304.34 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 25.36 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.02 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 830.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -774.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 496.82 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L16] char input_string[5], vogal_array[]={'a','A','e','E','i','I','o','O','u','U','\0'}; [L16] char input_string[5], vogal_array[]={'a','A','e','E','i','I','o','O','u','U','\0'}; [L16] char input_string[5], vogal_array[]={'a','A','e','E','i','I','o','O','u','U','\0'}; [L16] char input_string[5], vogal_array[]={'a','A','e','E','i','I','o','O','u','U','\0'}; [L16] char input_string[5], vogal_array[]={'a','A','e','E','i','I','o','O','u','U','\0'}; [L16] char input_string[5], vogal_array[]={'a','A','e','E','i','I','o','O','u','U','\0'}; [L16] char input_string[5], vogal_array[]={'a','A','e','E','i','I','o','O','u','U','\0'}; [L16] char input_string[5], vogal_array[]={'a','A','e','E','i','I','o','O','u','U','\0'}; [L16] char input_string[5], vogal_array[]={'a','A','e','E','i','I','o','O','u','U','\0'}; [L16] char input_string[5], vogal_array[]={'a','A','e','E','i','I','o','O','u','U','\0'}; [L16] char input_string[5], vogal_array[]={'a','A','e','E','i','I','o','O','u','U','\0'}; [L16] char input_string[5], vogal_array[]={'a','A','e','E','i','I','o','O','u','U','\0'}; [L17] unsigned int i,j,cont, tam_string, n_caracter; [L19] i=0 [L19] COND FALSE !(i<5) [L21] COND FALSE !(!(input_string[5 -1]=='\0')) [L23] n_caracter = 0 [L24] COND FALSE !(input_string[n_caracter]!='\0') [L27] cont = 0 [L28] i=0 [L28] COND FALSE !(i