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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/vogal_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 21:03:39,264 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 21:03:39,266 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 21:03:39,279 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 21:03:39,279 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 21:03:39,280 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 21:03:39,281 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 21:03:39,283 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 21:03:39,285 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 21:03:39,286 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 21:03:39,287 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 21:03:39,287 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 21:03:39,288 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 21:03:39,289 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 21:03:39,290 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 21:03:39,291 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 21:03:39,292 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 21:03:39,294 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 21:03:39,296 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 21:03:39,298 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 21:03:39,299 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 21:03:39,300 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 21:03:39,303 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 21:03:39,303 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 21:03:39,303 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 21:03:39,304 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 21:03:39,305 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 21:03:39,306 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 21:03:39,307 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 21:03:39,308 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 21:03:39,308 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 21:03:39,309 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 21:03:39,309 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 21:03:39,310 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 21:03:39,311 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 21:03:39,311 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 21:03:39,312 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 21:03:39,343 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 21:03:39,343 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 21:03:39,344 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 21:03:39,345 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 21:03:39,345 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 21:03:39,345 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 21:03:39,347 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 21:03:39,347 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 21:03:39,347 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 21:03:39,348 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 21:03:39,348 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 21:03:39,349 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 21:03:39,349 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 21:03:39,350 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 21:03:39,350 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 21:03:39,350 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 21:03:39,350 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 21:03:39,352 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 21:03:39,352 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 21:03:39,352 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 21:03:39,353 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 21:03:39,353 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 21:03:39,353 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 21:03:39,353 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 21:03:39,353 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 21:03:39,354 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 21:03:39,354 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 21:03:39,354 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 21:03:39,354 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 21:03:39,354 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 21:03:39,355 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 21:03:39,355 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 21:03:39,355 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 21:03:39,405 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 21:03:39,418 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 21:03:39,421 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 21:03:39,423 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 21:03:39,423 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 21:03:39,424 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/vogal_true-unreach-call.i [2018-09-15 21:03:39,770 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1314f8b2d/dd77998036da452180741e5492dd646e/FLAG46acd58cd [2018-09-15 21:03:39,943 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 21:03:39,944 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/vogal_true-unreach-call.i [2018-09-15 21:03:39,949 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1314f8b2d/dd77998036da452180741e5492dd646e/FLAG46acd58cd [2018-09-15 21:03:39,966 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1314f8b2d/dd77998036da452180741e5492dd646e [2018-09-15 21:03:39,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 21:03:39,981 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 21:03:39,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:39,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 21:03:39,989 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 21:03:39,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:39" (1/1) ... [2018-09-15 21:03:39,993 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3749a452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:39, skipping insertion in model container [2018-09-15 21:03:39,993 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 09:03:39" (1/1) ... [2018-09-15 21:03:40,004 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 21:03:40,207 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:40,225 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 21:03:40,241 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 21:03:40,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40 WrapperNode [2018-09-15 21:03:40,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 21:03:40,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:40,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 21:03:40,258 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 21:03:40,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 21:03:40,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 21:03:40,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 21:03:40,285 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 21:03:40,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (1/1) ... [2018-09-15 21:03:40,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 21:03:40,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 21:03:40,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 21:03:40,316 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 21:03:40,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (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 [2018-09-15 21:03:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 21:03:40,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 21:03:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 21:03:40,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 21:03:40,384 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 21:03:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 21:03:40,385 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-15 21:03:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-15 21:03:40,945 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 21:03:40,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:40 BoogieIcfgContainer [2018-09-15 21:03:40,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 21:03:40,947 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 21:03:40,947 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 21:03:40,950 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 21:03:40,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 09:03:39" (1/3) ... [2018-09-15 21:03:40,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7faa26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:40, skipping insertion in model container [2018-09-15 21:03:40,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 09:03:40" (2/3) ... [2018-09-15 21:03:40,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7faa26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 09:03:40, skipping insertion in model container [2018-09-15 21:03:40,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 09:03:40" (3/3) ... [2018-09-15 21:03:40,954 INFO L112 eAbstractionObserver]: Analyzing ICFG vogal_true-unreach-call.i [2018-09-15 21:03:40,965 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 21:03:40,973 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 21:03:41,018 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 21:03:41,019 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 21:03:41,019 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 21:03:41,019 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 21:03:41,020 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 21:03:41,020 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 21:03:41,020 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 21:03:41,020 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 21:03:41,020 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 21:03:41,039 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-09-15 21:03:41,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-15 21:03:41,046 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:41,047 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:41,048 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:41,052 INFO L82 PathProgramCache]: Analyzing trace with hash 71711704, now seen corresponding path program 1 times [2018-09-15 21:03:41,054 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:41,055 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-15 21:03:41,057 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [22], [34], [36], [67], [69], [101], [106], [109], [111], [117], [118], [119], [121] [2018-09-15 21:03:41,096 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:41,096 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:41,163 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:41,165 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-09-15 21:03:41,201 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:41,249 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-09-15 21:03:41,249 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:41,252 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:41,253 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:41,254 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-15 21:03:41,254 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:41,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-15 21:03:41,265 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-15 21:03:41,265 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-15 21:03:41,268 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-09-15 21:03:41,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:41,295 INFO L93 Difference]: Finished difference Result 70 states and 99 transitions. [2018-09-15 21:03:41,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-15 21:03:41,296 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-09-15 21:03:41,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:41,308 INFO L225 Difference]: With dead ends: 70 [2018-09-15 21:03:41,309 INFO L226 Difference]: Without dead ends: 32 [2018-09-15 21:03:41,313 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 [2018-09-15 21:03:41,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-09-15 21:03:41,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-09-15 21:03:41,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-09-15 21:03:41,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2018-09-15 21:03:41,352 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 16 [2018-09-15 21:03:41,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:41,352 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2018-09-15 21:03:41,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-15 21:03:41,353 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2018-09-15 21:03:41,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-15 21:03:41,354 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:41,355 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] [2018-09-15 21:03:41,355 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:41,356 INFO L82 PathProgramCache]: Analyzing trace with hash -2106174859, now seen corresponding path program 1 times [2018-09-15 21:03:41,356 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:41,356 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-15 21:03:41,357 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [22], [26], [30], [36], [40], [43], [69], [73], [77], [106], [109], [111], [117], [118], [119], [121] [2018-09-15 21:03:41,359 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:41,359 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:41,370 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:41,371 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-09-15 21:03:41,409 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:41,425 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-15 21:03:41,426 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:41,456 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:41,457 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:41,457 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-15 21:03:41,457 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:41,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-15 21:03:41,460 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-15 21:03:41,460 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:41,460 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 3 states. [2018-09-15 21:03:41,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:41,603 INFO L93 Difference]: Finished difference Result 75 states and 95 transitions. [2018-09-15 21:03:41,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-15 21:03:41,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-09-15 21:03:41,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:41,607 INFO L225 Difference]: With dead ends: 75 [2018-09-15 21:03:41,607 INFO L226 Difference]: Without dead ends: 51 [2018-09-15 21:03:41,608 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-15 21:03:41,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-15 21:03:41,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2018-09-15 21:03:41,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-09-15 21:03:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-09-15 21:03:41,616 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 20 [2018-09-15 21:03:41,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:41,617 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-09-15 21:03:41,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-15 21:03:41,617 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-09-15 21:03:41,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-15 21:03:41,618 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:41,618 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:41,618 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:41,619 INFO L82 PathProgramCache]: Analyzing trace with hash 53986969, now seen corresponding path program 1 times [2018-09-15 21:03:41,619 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:41,619 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-09-15 21:03:41,619 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [13], [15], [22], [26], [30], [36], [40], [43], [69], [73], [77], [106], [109], [111], [117], [118], [119], [121] [2018-09-15 21:03:41,622 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:41,622 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:41,631 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 21:03:41,735 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 21:03:41,735 INFO L272 AbstractInterpreter]: Visited 21 different actions 152 times. Merged at 7 different actions 111 times. Widened at 2 different actions 23 times. Found 19 fixpoints after 3 different actions. Largest state had 10 variables. [2018-09-15 21:03:41,775 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 21:03:41,804 INFO L232 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 51.85% of their original sizes. [2018-09-15 21:03:41,805 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 21:03:42,190 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 21:03:42,190 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 21:03:42,190 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 21:03:42,190 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 21:03:42,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 21:03:42,191 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 21:03:42,191 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-09-15 21:03:42,191 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 10 states. [2018-09-15 21:03:42,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 21:03:42,836 INFO L93 Difference]: Finished difference Result 123 states and 160 transitions. [2018-09-15 21:03:42,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 21:03:42,838 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-09-15 21:03:42,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 21:03:42,841 INFO L225 Difference]: With dead ends: 123 [2018-09-15 21:03:42,842 INFO L226 Difference]: Without dead ends: 97 [2018-09-15 21:03:42,844 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2018-09-15 21:03:42,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-09-15 21:03:42,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 54. [2018-09-15 21:03:42,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-09-15 21:03:42,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2018-09-15 21:03:42,869 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 23 [2018-09-15 21:03:42,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 21:03:42,874 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 67 transitions. [2018-09-15 21:03:42,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 21:03:42,875 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2018-09-15 21:03:42,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-15 21:03:42,877 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 21:03:42,877 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 21:03:42,877 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 21:03:42,878 INFO L82 PathProgramCache]: Analyzing trace with hash 2064669542, now seen corresponding path program 1 times [2018-09-15 21:03:42,878 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 21:03:42,878 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 33 with the following transitions: [2018-09-15 21:03:42,879 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [13], [15], [22], [26], [30], [36], [40], [43], [69], [73], [77], [79], [83], [86], [88], [91], [95], [99], [106], [109], [111], [117], [118], [119], [121] [2018-09-15 21:03:42,881 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 21:03:42,881 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 21:03:42,888 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 21:03:43,190 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-15 21:03:43,190 INFO L272 AbstractInterpreter]: Visited 29 different actions 568 times. Merged at 16 different actions 375 times. Widened at 5 different actions 78 times. Found 56 fixpoints after 6 different actions. Largest state had 13 variables. [2018-09-15 21:03:43,228 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-15 21:03:43,251 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-15 21:03:43,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 09:03:43 BoogieIcfgContainer [2018-09-15 21:03:43,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 21:03:43,254 INFO L168 Benchmark]: Toolchain (without parser) took 3274.33 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -648.2 MB). Peak memory consumption was 86.3 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:43,256 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. [2018-09-15 21:03:43,257 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.87 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. [2018-09-15 21:03:43,258 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.25 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. [2018-09-15 21:03:43,259 INFO L168 Benchmark]: Boogie Preprocessor took 30.16 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. [2018-09-15 21:03:43,260 INFO L168 Benchmark]: RCFGBuilder took 630.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:43,262 INFO L168 Benchmark]: TraceAbstraction took 2304.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 7.1 GB. [2018-09-15 21:03:43,270 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 274.87 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 27.25 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 30.16 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 630.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 734.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -782.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2304.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 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 TRUE i<5 [L20] input_string[i] = __VERIFIER_nondet_char() [L19] i++ [L19] i++ [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