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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/vogal_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 01:29:06,021 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 01:29:06,023 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 01:29:06,035 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 01:29:06,035 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 01:29:06,036 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 01:29:06,038 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 01:29:06,040 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 01:29:06,041 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 01:29:06,042 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 01:29:06,043 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 01:29:06,044 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 01:29:06,045 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 01:29:06,046 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 01:29:06,047 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 01:29:06,047 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 01:29:06,048 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 01:29:06,050 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 01:29:06,053 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 01:29:06,054 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 01:29:06,056 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 01:29:06,057 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 01:29:06,060 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 01:29:06,060 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 01:29:06,061 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 01:29:06,062 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 01:29:06,063 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 01:29:06,064 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 01:29:06,064 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 01:29:06,066 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 01:29:06,066 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 01:29:06,067 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 01:29:06,070 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 01:29:06,085 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 01:29:06,086 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 01:29:06,086 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 01:29:06,087 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 01:29:06,087 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 01:29:06,087 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 01:29:06,087 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 01:29:06,087 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 01:29:06,088 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 01:29:06,088 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 01:29:06,088 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 01:29:06,088 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 01:29:06,089 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 01:29:06,089 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 01:29:06,089 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 01:29:06,090 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 01:29:06,090 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 01:29:06,090 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 01:29:06,090 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 01:29:06,090 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 01:29:06,091 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 01:29:06,091 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 01:29:06,091 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 01:29:06,091 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 01:29:06,091 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 01:29:06,091 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 01:29:06,092 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 01:29:06,092 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 01:29:06,092 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 01:29:06,092 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 01:29:06,092 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 01:29:06,093 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 01:29:06,093 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 01:29:06,093 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 01:29:06,138 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 01:29:06,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 01:29:06,160 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 01:29:06,161 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 01:29:06,162 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 01:29:06,163 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/vogal_true-unreach-call.i [2018-09-19 01:29:06,523 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f38f25465/f302e4b7d8ce415892dad1060ca31dd5/FLAG6f7e9c632 [2018-09-19 01:29:06,659 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 01:29:06,659 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/vogal_true-unreach-call.i [2018-09-19 01:29:06,666 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f38f25465/f302e4b7d8ce415892dad1060ca31dd5/FLAG6f7e9c632 [2018-09-19 01:29:06,682 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f38f25465/f302e4b7d8ce415892dad1060ca31dd5 [2018-09-19 01:29:06,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 01:29:06,699 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 01:29:06,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:06,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 01:29:06,709 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 01:29:06,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@317af0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:06, skipping insertion in model container [2018-09-19 01:29:06,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 01:29:06" (1/1) ... [2018-09-19 01:29:06,725 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 01:29:06,959 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:06,976 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 01:29:06,989 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 01:29:07,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:07 WrapperNode [2018-09-19 01:29:07,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 01:29:07,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:07,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 01:29:07,006 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 01:29:07,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:07" (1/1) ... [2018-09-19 01:29:07,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:07" (1/1) ... [2018-09-19 01:29:07,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 01:29:07,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 01:29:07,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 01:29:07,032 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 01:29:07,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:07" (1/1) ... [2018-09-19 01:29:07,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:07" (1/1) ... [2018-09-19 01:29:07,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:07" (1/1) ... [2018-09-19 01:29:07,046 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:07" (1/1) ... [2018-09-19 01:29:07,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:07" (1/1) ... [2018-09-19 01:29:07,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:07" (1/1) ... [2018-09-19 01:29:07,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:07" (1/1) ... [2018-09-19 01:29:07,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 01:29:07,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 01:29:07,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 01:29:07,067 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 01:29:07,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:07" (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 01:29:07,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 01:29:07,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 01:29:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 01:29:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 01:29:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 01:29:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 01:29:07,209 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 01:29:07,209 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 01:29:07,705 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 01:29:07,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:07 BoogieIcfgContainer [2018-09-19 01:29:07,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 01:29:07,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 01:29:07,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 01:29:07,711 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 01:29:07,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 01:29:06" (1/3) ... [2018-09-19 01:29:07,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3f3474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:07, skipping insertion in model container [2018-09-19 01:29:07,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 01:29:07" (2/3) ... [2018-09-19 01:29:07,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f3f3474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 01:29:07, skipping insertion in model container [2018-09-19 01:29:07,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 01:29:07" (3/3) ... [2018-09-19 01:29:07,715 INFO L112 eAbstractionObserver]: Analyzing ICFG vogal_true-unreach-call.i [2018-09-19 01:29:07,726 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 01:29:07,734 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 01:29:07,786 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 01:29:07,787 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 01:29:07,787 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 01:29:07,787 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 01:29:07,787 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 01:29:07,787 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 01:29:07,788 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 01:29:07,788 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 01:29:07,788 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 01:29:07,817 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-09-19 01:29:07,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-19 01:29:07,824 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:07,825 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 01:29:07,827 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:07,832 INFO L82 PathProgramCache]: Analyzing trace with hash 71711704, now seen corresponding path program 1 times [2018-09-19 01:29:07,835 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:07,836 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-09-19 01:29:07,839 INFO L202 CegarAbsIntRunner]: [0], [4], [17], [22], [34], [36], [67], [69], [101], [106], [109], [111], [117], [118], [119], [121] [2018-09-19 01:29:07,897 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:07,898 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:07,973 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:07,974 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 01:29:07,991 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:08,046 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 100% of their original sizes. [2018-09-19 01:29:08,046 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:08,049 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:08,050 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:08,051 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 01:29:08,051 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:08,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 01:29:08,064 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 01:29:08,064 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 01:29:08,067 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-09-19 01:29:08,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:08,090 INFO L93 Difference]: Finished difference Result 70 states and 99 transitions. [2018-09-19 01:29:08,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 01:29:08,092 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-09-19 01:29:08,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:08,100 INFO L225 Difference]: With dead ends: 70 [2018-09-19 01:29:08,100 INFO L226 Difference]: Without dead ends: 32 [2018-09-19 01:29:08,104 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 01:29:08,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-09-19 01:29:08,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-09-19 01:29:08,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-09-19 01:29:08,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2018-09-19 01:29:08,144 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 16 [2018-09-19 01:29:08,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:08,145 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2018-09-19 01:29:08,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 01:29:08,145 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2018-09-19 01:29:08,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-19 01:29:08,147 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:08,147 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 01:29:08,147 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:08,148 INFO L82 PathProgramCache]: Analyzing trace with hash -2106174859, now seen corresponding path program 1 times [2018-09-19 01:29:08,148 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:08,148 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-09-19 01:29:08,149 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 01:29:08,152 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:08,152 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:08,170 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:08,171 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 8 variables. [2018-09-19 01:29:08,192 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:08,215 INFO L224 lantSequenceWeakener]: Could never weaken! [2018-09-19 01:29:08,215 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:08,250 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:08,250 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:08,251 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-19 01:29:08,251 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:08,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-19 01:29:08,252 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-19 01:29:08,252 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-19 01:29:08,252 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 3 states. [2018-09-19 01:29:08,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:08,442 INFO L93 Difference]: Finished difference Result 75 states and 95 transitions. [2018-09-19 01:29:08,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-19 01:29:08,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-09-19 01:29:08,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:08,447 INFO L225 Difference]: With dead ends: 75 [2018-09-19 01:29:08,447 INFO L226 Difference]: Without dead ends: 51 [2018-09-19 01:29:08,448 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 [2018-09-19 01:29:08,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-19 01:29:08,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 34. [2018-09-19 01:29:08,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-09-19 01:29:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-09-19 01:29:08,457 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 20 [2018-09-19 01:29:08,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:08,458 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-09-19 01:29:08,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-19 01:29:08,458 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-09-19 01:29:08,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-19 01:29:08,459 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:08,459 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] [2018-09-19 01:29:08,459 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:08,460 INFO L82 PathProgramCache]: Analyzing trace with hash 53986969, now seen corresponding path program 1 times [2018-09-19 01:29:08,460 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:08,460 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-09-19 01:29:08,460 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] [2018-09-19 01:29:08,463 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:08,463 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:08,480 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 01:29:08,777 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 01:29:08,777 INFO L272 AbstractInterpreter]: Visited 21 different actions 313 times. Merged at 7 different actions 255 times. Widened at 2 different actions 65 times. Found 37 fixpoints after 2 different actions. Largest state had 10 variables. [2018-09-19 01:29:08,817 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 01:29:08,881 INFO L232 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 51.85% of their original sizes. [2018-09-19 01:29:08,881 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 01:29:09,511 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 01:29:09,512 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 01:29:09,512 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 01:29:09,512 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 01:29:09,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 01:29:09,513 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 01:29:09,513 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-09-19 01:29:09,514 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 10 states. [2018-09-19 01:29:10,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 01:29:10,420 INFO L93 Difference]: Finished difference Result 123 states and 160 transitions. [2018-09-19 01:29:10,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 01:29:10,421 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-09-19 01:29:10,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 01:29:10,424 INFO L225 Difference]: With dead ends: 123 [2018-09-19 01:29:10,424 INFO L226 Difference]: Without dead ends: 97 [2018-09-19 01:29:10,425 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2018-09-19 01:29:10,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-09-19 01:29:10,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 54. [2018-09-19 01:29:10,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-09-19 01:29:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2018-09-19 01:29:10,446 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 23 [2018-09-19 01:29:10,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 01:29:10,450 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 67 transitions. [2018-09-19 01:29:10,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 01:29:10,450 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2018-09-19 01:29:10,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-19 01:29:10,452 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 01:29:10,452 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] [2018-09-19 01:29:10,452 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 01:29:10,457 INFO L82 PathProgramCache]: Analyzing trace with hash 2064669542, now seen corresponding path program 1 times [2018-09-19 01:29:10,457 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 01:29:10,457 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 33 with the following transitions: [2018-09-19 01:29:10,458 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] [2018-09-19 01:29:10,459 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 01:29:10,460 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 01:29:10,464 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 01:29:11,723 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-19 01:29:11,724 INFO L272 AbstractInterpreter]: Visited 29 different actions 2193 times. Merged at 16 different actions 1470 times. Widened at 5 different actions 348 times. Found 208 fixpoints after 5 different actions. Largest state had 13 variables. [2018-09-19 01:29:11,768 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 01:29:11,794 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-19 01:29:11,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 01:29:11 BoogieIcfgContainer [2018-09-19 01:29:11,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 01:29:11,796 INFO L168 Benchmark]: Toolchain (without parser) took 5099.12 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.6 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -390.7 MB). Peak memory consumption was 366.9 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:11,798 INFO L168 Benchmark]: CDTParser took 0.19 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 01:29:11,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.03 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 01:29:11,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.79 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 01:29:11,801 INFO L168 Benchmark]: Boogie Preprocessor took 34.38 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 01:29:11,803 INFO L168 Benchmark]: RCFGBuilder took 639.54 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:11,804 INFO L168 Benchmark]: TraceAbstraction took 4087.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 405.6 MB). Peak memory consumption was 405.6 MB. Max. memory is 7.1 GB. [2018-09-19 01:29:11,812 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 305.03 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 25.79 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 34.38 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 639.54 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 757.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -806.8 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4087.30 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 405.6 MB). Peak memory consumption was 405.6 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