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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/vogal_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 07:14:24,247 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 07:14:24,249 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 07:14:24,261 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 07:14:24,261 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 07:14:24,262 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 07:14:24,264 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 07:14:24,265 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 07:14:24,267 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 07:14:24,268 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 07:14:24,269 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 07:14:24,270 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 07:14:24,270 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 07:14:24,271 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 07:14:24,273 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 07:14:24,273 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 07:14:24,274 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 07:14:24,276 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 07:14:24,279 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 07:14:24,280 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 07:14:24,287 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 07:14:24,288 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 07:14:24,295 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 07:14:24,295 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 07:14:24,295 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 07:14:24,296 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 07:14:24,299 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 07:14:24,300 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 07:14:24,303 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 07:14:24,304 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 07:14:24,304 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 07:14:24,305 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-08-08 07:14:24,312 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-08-08 07:14:24,345 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 07:14:24,346 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 07:14:24,347 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 07:14:24,347 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 07:14:24,347 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 07:14:24,349 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 07:14:24,350 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 07:14:24,350 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 07:14:24,350 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 07:14:24,350 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-08-08 07:14:24,350 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 07:14:24,351 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 07:14:24,352 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 07:14:24,352 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 07:14:24,352 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 07:14:24,352 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 07:14:24,352 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 07:14:24,353 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 07:14:24,353 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 07:14:24,353 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 07:14:24,353 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 07:14:24,355 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 07:14:24,355 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 07:14:24,355 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 07:14:24,355 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 07:14:24,355 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 07:14:24,356 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 07:14:24,356 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 07:14:24,356 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 07:14:24,356 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 07:14:24,356 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 07:14:24,356 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 07:14:24,357 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 07:14:24,357 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 07:14:24,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 07:14:24,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 07:14:24,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 07:14:24,449 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 07:14:24,449 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 07:14:24,450 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/vogal_true-unreach-call.i [2018-08-08 07:14:24,809 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a579bf197/02c1652265d54534825e6408a626b017/FLAGa286ccb70 [2018-08-08 07:14:24,932 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 07:14:24,933 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/vogal_true-unreach-call.i [2018-08-08 07:14:24,940 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a579bf197/02c1652265d54534825e6408a626b017/FLAGa286ccb70 [2018-08-08 07:14:24,956 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a579bf197/02c1652265d54534825e6408a626b017 [2018-08-08 07:14:24,968 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 07:14:24,970 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 07:14:24,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 07:14:24,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 07:14:24,977 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 07:14:24,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 07:14:24" (1/1) ... [2018-08-08 07:14:24,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de78e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:24, skipping insertion in model container [2018-08-08 07:14:24,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 07:14:24" (1/1) ... [2018-08-08 07:14:25,206 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 07:14:25,276 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 07:14:25,292 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 07:14:25,304 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 07:14:25,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25 WrapperNode [2018-08-08 07:14:25,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 07:14:25,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 07:14:25,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 07:14:25,320 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 07:14:25,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 07:14:25,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 07:14:25,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 07:14:25,340 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 07:14:25,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 07:14:25,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 07:14:25,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 07:14:25,368 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 07:14:25,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (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 [2018-08-08 07:14:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 07:14:25,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 07:14:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 07:14:25,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 07:14:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 07:14:25,496 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 07:14:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_vogal_true_unreach_call_i____VERIFIER_assert [2018-08-08 07:14:25,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_vogal_true_unreach_call_i____VERIFIER_assert [2018-08-08 07:14:25,947 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 07:14:25,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 07:14:25 BoogieIcfgContainer [2018-08-08 07:14:25,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 07:14:25,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 07:14:25,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 07:14:25,953 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 07:14:25,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 07:14:24" (1/3) ... [2018-08-08 07:14:25,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7546443e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 07:14:25, skipping insertion in model container [2018-08-08 07:14:25,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (2/3) ... [2018-08-08 07:14:25,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7546443e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 07:14:25, skipping insertion in model container [2018-08-08 07:14:25,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 07:14:25" (3/3) ... [2018-08-08 07:14:25,958 INFO L112 eAbstractionObserver]: Analyzing ICFG vogal_true-unreach-call.i [2018-08-08 07:14:25,968 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 07:14:25,977 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 07:14:26,033 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 07:14:26,033 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 07:14:26,034 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 07:14:26,034 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 07:14:26,034 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 07:14:26,034 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 07:14:26,034 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 07:14:26,034 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 07:14:26,034 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 07:14:26,052 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-08-08 07:14:26,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-08-08 07:14:26,060 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:26,061 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 07:14:26,062 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_vogal_true_unreach_call_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:26,068 INFO L82 PathProgramCache]: Analyzing trace with hash 71711704, now seen corresponding path program 1 times [2018-08-08 07:14:26,071 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:26,072 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-08-08 07:14:26,075 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [22], [34], [36], [67], [69], [101], [106], [109], [111], [117], [118], [119], [121] [2018-08-08 07:14:26,109 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:26,110 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:26,166 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:26,167 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-08-08 07:14:26,186 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:26,229 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-08-08 07:14:26,229 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:26,231 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:26,233 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:26,233 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-08-08 07:14:26,234 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:26,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-08-08 07:14:26,245 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-08-08 07:14:26,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-08-08 07:14:26,248 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-08-08 07:14:26,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:26,275 INFO L93 Difference]: Finished difference Result 70 states and 99 transitions. [2018-08-08 07:14:26,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-08-08 07:14:26,276 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-08-08 07:14:26,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:26,283 INFO L225 Difference]: With dead ends: 70 [2018-08-08 07:14:26,283 INFO L226 Difference]: Without dead ends: 32 [2018-08-08 07:14:26,287 INFO L603 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 [2018-08-08 07:14:26,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-08-08 07:14:26,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-08-08 07:14:26,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-08-08 07:14:26,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2018-08-08 07:14:26,329 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 16 [2018-08-08 07:14:26,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:26,329 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2018-08-08 07:14:26,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-08-08 07:14:26,330 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2018-08-08 07:14:26,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-08-08 07:14:26,331 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:26,332 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] [2018-08-08 07:14:26,332 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_vogal_true_unreach_call_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:26,332 INFO L82 PathProgramCache]: Analyzing trace with hash -2106174859, now seen corresponding path program 1 times [2018-08-08 07:14:26,333 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:26,333 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-08-08 07:14:26,333 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [22], [26], [30], [36], [40], [43], [69], [73], [77], [106], [109], [111], [117], [118], [119], [121] [2018-08-08 07:14:26,335 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:26,336 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:26,348 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 07:14:26,373 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-08-08 07:14:26,373 INFO L272 AbstractInterpreter]: Visited 20 different actions 20 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-08-08 07:14:26,405 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-08-08 07:14:26,422 WARN L205 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-08-08 07:14:26,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 07:14:26 BoogieIcfgContainer [2018-08-08 07:14:26,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 07:14:26,424 INFO L168 Benchmark]: Toolchain (without parser) took 1455.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 07:14:26,426 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-08-08 07:14:26,426 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.56 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. [2018-08-08 07:14:26,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.05 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. [2018-08-08 07:14:26,428 INFO L168 Benchmark]: Boogie Preprocessor took 27.49 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. [2018-08-08 07:14:26,429 INFO L168 Benchmark]: RCFGBuilder took 580.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-08-08 07:14:26,430 INFO L168 Benchmark]: TraceAbstraction took 473.65 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: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2018-08-08 07:14:26,435 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 348.56 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 20.05 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 27.49 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 580.88 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 755.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 473.65 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: 30.0 MB). Peak memory consumption was 30.0 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