java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call2_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 12:33:16,300 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 12:33:16,302 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 12:33:16,314 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 12:33:16,314 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 12:33:16,315 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 12:33:16,316 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 12:33:16,318 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 12:33:16,320 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 12:33:16,321 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 12:33:16,322 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 12:33:16,322 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 12:33:16,323 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 12:33:16,324 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 12:33:16,325 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 12:33:16,326 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 12:33:16,327 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 12:33:16,329 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 12:33:16,331 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 12:33:16,333 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 12:33:16,334 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 12:33:16,335 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 12:33:16,338 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 12:33:16,347 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-24 12:33:16,374 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 12:33:16,376 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 12:33:16,377 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 12:33:16,377 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 12:33:16,377 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 12:33:16,378 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 12:33:16,378 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 12:33:16,378 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 12:33:16,378 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 12:33:16,378 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 12:33:16,379 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 12:33:16,379 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 12:33:16,379 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 12:33:16,380 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 12:33:16,381 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 12:33:16,381 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 12:33:16,381 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 12:33:16,381 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 12:33:16,381 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 12:33:16,381 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 12:33:16,383 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 12:33:16,383 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 12:33:16,383 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 12:33:16,383 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 12:33:16,383 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 12:33:16,384 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 12:33:16,384 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 12:33:16,384 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 12:33:16,384 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 12:33:16,384 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 12:33:16,385 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 12:33:16,385 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 12:33:16,385 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 12:33:16,385 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 12:33:16,386 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 12:33:16,386 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 12:33:16,441 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 12:33:16,462 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 12:33:16,466 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 12:33:16,468 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 12:33:16,468 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 12:33:16,469 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call2_true-termination.i [2018-10-24 12:33:16,525 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5a910ee42/00118c098a81432b9cf25f8715c82274/FLAG2e5795365 [2018-10-24 12:33:16,943 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 12:33:16,944 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_true-unreach-call2_true-termination.i [2018-10-24 12:33:16,950 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5a910ee42/00118c098a81432b9cf25f8715c82274/FLAG2e5795365 [2018-10-24 12:33:16,966 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/5a910ee42/00118c098a81432b9cf25f8715c82274 [2018-10-24 12:33:16,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 12:33:16,981 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 12:33:16,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 12:33:16,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 12:33:16,988 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 12:33:16,989 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:33:16" (1/1) ... [2018-10-24 12:33:16,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48ab37dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:16, skipping insertion in model container [2018-10-24 12:33:16,992 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:33:16" (1/1) ... [2018-10-24 12:33:17,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 12:33:17,029 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 12:33:17,238 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:33:17,243 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 12:33:17,260 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:33:17,277 INFO L193 MainTranslator]: Completed translation [2018-10-24 12:33:17,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:17 WrapperNode [2018-10-24 12:33:17,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 12:33:17,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 12:33:17,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 12:33:17,279 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 12:33:17,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:17" (1/1) ... [2018-10-24 12:33:17,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:17" (1/1) ... [2018-10-24 12:33:17,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 12:33:17,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 12:33:17,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 12:33:17,305 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 12:33:17,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:17" (1/1) ... [2018-10-24 12:33:17,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:17" (1/1) ... [2018-10-24 12:33:17,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:17" (1/1) ... [2018-10-24 12:33:17,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:17" (1/1) ... [2018-10-24 12:33:17,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:17" (1/1) ... [2018-10-24 12:33:17,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:17" (1/1) ... [2018-10-24 12:33:17,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:17" (1/1) ... [2018-10-24 12:33:17,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 12:33:17,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 12:33:17,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 12:33:17,325 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 12:33:17,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 12:33:17,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 12:33:17,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 12:33:17,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 12:33:17,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 12:33:17,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 12:33:17,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 12:33:17,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-24 12:33:17,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-24 12:33:17,606 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 12:33:17,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:33:17 BoogieIcfgContainer [2018-10-24 12:33:17,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 12:33:17,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 12:33:17,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 12:33:17,611 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 12:33:17,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:33:16" (1/3) ... [2018-10-24 12:33:17,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17debbc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:33:17, skipping insertion in model container [2018-10-24 12:33:17,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:17" (2/3) ... [2018-10-24 12:33:17,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17debbc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:33:17, skipping insertion in model container [2018-10-24 12:33:17,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:33:17" (3/3) ... [2018-10-24 12:33:17,615 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_true-unreach-call2_true-termination.i [2018-10-24 12:33:17,625 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 12:33:17,634 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 12:33:17,648 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 12:33:17,677 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 12:33:17,677 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 12:33:17,678 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 12:33:17,678 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 12:33:17,678 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 12:33:17,678 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 12:33:17,678 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 12:33:17,678 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 12:33:17,695 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-10-24 12:33:17,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-24 12:33:17,701 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:33:17,702 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:33:17,705 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:33:17,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:33:17,711 INFO L82 PathProgramCache]: Analyzing trace with hash -10373566, now seen corresponding path program 1 times [2018-10-24 12:33:17,713 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:33:17,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:17,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:33:17,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:17,764 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:33:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:33:17,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:33:17,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:33:17,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 12:33:17,811 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:33:17,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-24 12:33:17,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-24 12:33:17,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 12:33:17,833 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2018-10-24 12:33:17,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:33:17,859 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-10-24 12:33:17,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 12:33:17,862 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-10-24 12:33:17,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:33:17,871 INFO L225 Difference]: With dead ends: 29 [2018-10-24 12:33:17,872 INFO L226 Difference]: Without dead ends: 12 [2018-10-24 12:33:17,876 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 12:33:17,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-24 12:33:17,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-24 12:33:17,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-24 12:33:17,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-10-24 12:33:17,912 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-10-24 12:33:17,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:33:17,913 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-10-24 12:33:17,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-24 12:33:17,913 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-10-24 12:33:17,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-24 12:33:17,914 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:33:17,914 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:33:17,914 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:33:17,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:33:17,915 INFO L82 PathProgramCache]: Analyzing trace with hash -571410792, now seen corresponding path program 1 times [2018-10-24 12:33:17,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:33:17,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:17,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:33:17,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:17,917 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:33:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:33:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:33:18,138 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:33:18,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 12:33:18,139 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:33:18,140 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 12:33:18,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 12:33:18,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 12:33:18,141 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-10-24 12:33:18,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:33:18,218 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-10-24 12:33:18,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 12:33:18,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-10-24 12:33:18,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:33:18,220 INFO L225 Difference]: With dead ends: 12 [2018-10-24 12:33:18,220 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 12:33:18,221 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 12:33:18,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 12:33:18,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 12:33:18,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 12:33:18,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 12:33:18,222 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-10-24 12:33:18,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:33:18,222 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 12:33:18,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 12:33:18,223 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 12:33:18,223 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 12:33:18,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 12:33:18,281 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-24 12:33:18,281 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:33:18,282 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:33:18,282 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-24 12:33:18,282 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-24 12:33:18,282 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 12:33:18,283 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 8 14) the Hoare annotation is: true [2018-10-24 12:33:18,283 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 8 14) no Hoare annotation was computed. [2018-10-24 12:33:18,284 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 8 14) no Hoare annotation was computed. [2018-10-24 12:33:18,284 INFO L425 ceAbstractionStarter]: For program point L10-1(lines 10 12) no Hoare annotation was computed. [2018-10-24 12:33:18,284 INFO L428 ceAbstractionStarter]: At program point L10-3(lines 10 12) the Hoare annotation is: true [2018-10-24 12:33:18,285 INFO L421 ceAbstractionStarter]: At program point L10-4(lines 10 12) the Hoare annotation is: (< (+ (* 4294967296 (div main_~x~0 4294967296)) 268435454) main_~x~0) [2018-10-24 12:33:18,285 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-10-24 12:33:18,285 INFO L425 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-10-24 12:33:18,285 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-10-24 12:33:18,285 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-10-24 12:33:18,285 INFO L425 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-10-24 12:33:18,286 INFO L425 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-10-24 12:33:18,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:33:18 BoogieIcfgContainer [2018-10-24 12:33:18,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 12:33:18,296 INFO L168 Benchmark]: Toolchain (without parser) took 1316.14 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -744.6 MB). Peak memory consumption was 926.2 kB. Max. memory is 7.1 GB. [2018-10-24 12:33:18,301 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. [2018-10-24 12:33:18,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.92 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. [2018-10-24 12:33:18,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.25 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. [2018-10-24 12:33:18,305 INFO L168 Benchmark]: Boogie Preprocessor took 19.71 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. [2018-10-24 12:33:18,306 INFO L168 Benchmark]: RCFGBuilder took 282.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-24 12:33:18,309 INFO L168 Benchmark]: TraceAbstraction took 687.58 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2018-10-24 12:33:18,317 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 295.92 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 25.25 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 19.71 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 282.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -788.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 687.58 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 1 SDslu, 23 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 15 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...