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/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/terminator_03_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 11:49:07,253 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 11:49:07,255 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 11:49:07,267 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 11:49:07,267 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 11:49:07,268 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 11:49:07,269 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 11:49:07,271 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 11:49:07,273 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 11:49:07,274 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 11:49:07,274 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 11:49:07,275 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 11:49:07,276 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 11:49:07,277 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 11:49:07,278 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 11:49:07,279 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 11:49:07,279 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 11:49:07,281 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 11:49:07,283 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 11:49:07,285 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 11:49:07,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 11:49:07,287 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 11:49:07,289 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 11:49:07,300 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 11:49:07,324 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 11:49:07,324 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 11:49:07,325 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 11:49:07,325 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 11:49:07,326 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 11:49:07,326 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 11:49:07,326 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 11:49:07,330 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 11:49:07,330 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 11:49:07,330 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 11:49:07,330 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 11:49:07,330 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 11:49:07,331 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 11:49:07,331 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 11:49:07,331 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 11:49:07,331 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 11:49:07,331 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 11:49:07,331 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 11:49:07,333 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 11:49:07,333 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 11:49:07,333 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 11:49:07,333 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 11:49:07,333 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 11:49:07,334 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 11:49:07,334 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 11:49:07,334 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 11:49:07,334 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 11:49:07,335 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 11:49:07,395 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 11:49:07,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 11:49:07,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 11:49:07,418 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 11:49:07,418 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 11:49:07,419 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/terminator_03_true-unreach-call_true-termination.i [2018-10-24 11:49:07,475 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cc475f00c/981c68b3a20742c183468bc44e126093/FLAGc211c77de [2018-10-24 11:49:07,887 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 11:49:07,890 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_03_true-unreach-call_true-termination.i [2018-10-24 11:49:07,897 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cc475f00c/981c68b3a20742c183468bc44e126093/FLAGc211c77de [2018-10-24 11:49:07,919 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/cc475f00c/981c68b3a20742c183468bc44e126093 [2018-10-24 11:49:07,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 11:49:07,933 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 11:49:07,934 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 11:49:07,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 11:49:07,939 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 11:49:07,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:49:07" (1/1) ... [2018-10-24 11:49:07,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3468986d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:07, skipping insertion in model container [2018-10-24 11:49:07,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:49:07" (1/1) ... [2018-10-24 11:49:07,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 11:49:07,980 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 11:49:08,148 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:49:08,152 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 11:49:08,169 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:49:08,187 INFO L193 MainTranslator]: Completed translation [2018-10-24 11:49:08,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:08 WrapperNode [2018-10-24 11:49:08,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 11:49:08,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 11:49:08,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 11:49:08,189 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 11:49:08,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:08" (1/1) ... [2018-10-24 11:49:08,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:08" (1/1) ... [2018-10-24 11:49:08,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 11:49:08,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 11:49:08,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 11:49:08,222 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 11:49:08,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:08" (1/1) ... [2018-10-24 11:49:08,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:08" (1/1) ... [2018-10-24 11:49:08,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:08" (1/1) ... [2018-10-24 11:49:08,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:08" (1/1) ... [2018-10-24 11:49:08,234 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:08" (1/1) ... [2018-10-24 11:49:08,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:08" (1/1) ... [2018-10-24 11:49:08,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:08" (1/1) ... [2018-10-24 11:49:08,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 11:49:08,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 11:49:08,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 11:49:08,243 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 11:49:08,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:08" (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 11:49:08,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 11:49:08,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 11:49:08,541 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 11:49:08,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:49:08 BoogieIcfgContainer [2018-10-24 11:49:08,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 11:49:08,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 11:49:08,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 11:49:08,546 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 11:49:08,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:49:07" (1/3) ... [2018-10-24 11:49:08,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3c0aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:49:08, skipping insertion in model container [2018-10-24 11:49:08,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:49:08" (2/3) ... [2018-10-24 11:49:08,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3c0aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:49:08, skipping insertion in model container [2018-10-24 11:49:08,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:49:08" (3/3) ... [2018-10-24 11:49:08,550 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_03_true-unreach-call_true-termination.i [2018-10-24 11:49:08,559 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 11:49:08,568 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 11:49:08,584 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 11:49:08,617 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 11:49:08,617 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 11:49:08,618 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 11:49:08,618 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 11:49:08,618 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 11:49:08,618 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 11:49:08,618 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 11:49:08,618 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 11:49:08,619 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 11:49:08,632 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-10-24 11:49:08,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-24 11:49:08,639 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:49:08,639 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:49:08,642 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:49:08,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:49:08,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1807304968, now seen corresponding path program 1 times [2018-10-24 11:49:08,650 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:49:08,651 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:49:08,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:49:08,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:49:08,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:49:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:49:08,925 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 11:49:08,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:49:08,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 11:49:08,932 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 11:49:08,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 11:49:08,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-24 11:49:08,946 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2018-10-24 11:49:09,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:49:09,049 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2018-10-24 11:49:09,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 11:49:09,051 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-10-24 11:49:09,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:49:09,062 INFO L225 Difference]: With dead ends: 28 [2018-10-24 11:49:09,063 INFO L226 Difference]: Without dead ends: 10 [2018-10-24 11:49:09,066 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 11:49:09,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-10-24 11:49:09,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-10-24 11:49:09,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-24 11:49:09,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-10-24 11:49:09,100 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2018-10-24 11:49:09,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:49:09,101 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-10-24 11:49:09,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 11:49:09,101 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-10-24 11:49:09,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-24 11:49:09,101 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:49:09,102 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:49:09,102 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:49:09,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:49:09,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1211482291, now seen corresponding path program 1 times [2018-10-24 11:49:09,103 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:49:09,103 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:49:09,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:49:09,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:49:09,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:49:09,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:49:09,181 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 11:49:09,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:49:09,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 11:49:09,183 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 11:49:09,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 11:49:09,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 11:49:09,184 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 5 states. [2018-10-24 11:49:09,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:49:09,244 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-10-24 11:49:09,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 11:49:09,245 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-10-24 11:49:09,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:49:09,245 INFO L225 Difference]: With dead ends: 10 [2018-10-24 11:49:09,245 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 11:49:09,248 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 11:49:09,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 11:49:09,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 11:49:09,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 11:49:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 11:49:09,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-10-24 11:49:09,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:49:09,251 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 11:49:09,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 11:49:09,251 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 11:49:09,251 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 11:49:09,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 11:49:09,291 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 11:49:09,291 INFO L428 ceAbstractionStarter]: At program point L21(lines 11 22) the Hoare annotation is: true [2018-10-24 11:49:09,291 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 19) no Hoare annotation was computed. [2018-10-24 11:49:09,291 INFO L425 ceAbstractionStarter]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2018-10-24 11:49:09,292 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-24 11:49:09,292 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-24 11:49:09,292 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-24 11:49:09,292 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 11:49:09,292 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 18) no Hoare annotation was computed. [2018-10-24 11:49:09,292 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-24 11:49:09,292 INFO L425 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2018-10-24 11:49:09,293 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 18) the Hoare annotation is: (< 0 ULTIMATE.start_main_~y~0) [2018-10-24 11:49:09,293 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-24 11:49:09,293 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-10-24 11:49:09,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:49:09 BoogieIcfgContainer [2018-10-24 11:49:09,304 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 11:49:09,305 INFO L168 Benchmark]: Toolchain (without parser) took 1373.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -749.7 MB). Peak memory consumption was 32.9 kB. Max. memory is 7.1 GB. [2018-10-24 11:49:09,307 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 11:49:09,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.91 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 11:49:09,309 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.94 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 11:49:09,309 INFO L168 Benchmark]: Boogie Preprocessor took 21.00 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 11:49:09,310 INFO L168 Benchmark]: RCFGBuilder took 299.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -790.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2018-10-24 11:49:09,311 INFO L168 Benchmark]: TraceAbstraction took 761.33 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: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2018-10-24 11:49:09,316 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 253.91 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 32.94 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 21.00 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 299.16 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -790.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 761.33 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: 29.9 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 < y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 13 SDslu, 30 SDs, 0 SdLazy, 18 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 5 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 220 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...