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/loop-new/count_by_1_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 15:50:40,995 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 15:50:40,997 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 15:50:41,009 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 15:50:41,009 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 15:50:41,010 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 15:50:41,011 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 15:50:41,013 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 15:50:41,015 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 15:50:41,016 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 15:50:41,016 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 15:50:41,017 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 15:50:41,018 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 15:50:41,019 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 15:50:41,020 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 15:50:41,021 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 15:50:41,021 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 15:50:41,023 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 15:50:41,025 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 15:50:41,026 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 15:50:41,027 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 15:50:41,029 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 15:50:41,031 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-22 15:50:41,040 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 [2018-10-22 15:50:41,058 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 15:50:41,058 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 15:50:41,061 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 15:50:41,061 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-22 15:50:41,062 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-22 15:50:41,063 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-22 15:50:41,063 INFO L133 SettingsManager]: * Use SBE=true [2018-10-22 15:50:41,063 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 15:50:41,063 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 15:50:41,063 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 15:50:41,063 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 15:50:41,065 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 15:50:41,065 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 15:50:41,065 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 15:50:41,065 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 15:50:41,065 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 15:50:41,066 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 15:50:41,066 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 15:50:41,066 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 15:50:41,066 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 15:50:41,066 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 15:50:41,067 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 15:50:41,068 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 15:50:41,068 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-22 15:50:41,068 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 15:50:41,068 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 15:50:41,069 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 15:50:41,069 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 15:50:41,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 15:50:41,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 15:50:41,138 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 15:50:41,140 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 15:50:41,140 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 15:50:41,141 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i [2018-10-22 15:50:41,202 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/441392d25/81e7e07075ea44289c9277f1afb91680/FLAGf9657abc5 [2018-10-22 15:50:41,615 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 15:50:41,616 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i [2018-10-22 15:50:41,623 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/441392d25/81e7e07075ea44289c9277f1afb91680/FLAGf9657abc5 [2018-10-22 15:50:41,637 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/441392d25/81e7e07075ea44289c9277f1afb91680 [2018-10-22 15:50:41,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 15:50:41,647 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 15:50:41,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 15:50:41,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 15:50:41,653 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 15:50:41,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:50:41" (1/1) ... [2018-10-22 15:50:41,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2254028d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41, skipping insertion in model container [2018-10-22 15:50:41,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 03:50:41" (1/1) ... [2018-10-22 15:50:41,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 15:50:41,692 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 15:50:41,889 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:50:41,893 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 15:50:41,911 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 15:50:41,927 INFO L193 MainTranslator]: Completed translation [2018-10-22 15:50:41,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41 WrapperNode [2018-10-22 15:50:41,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 15:50:41,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 15:50:41,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 15:50:41,929 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 15:50:41,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41" (1/1) ... [2018-10-22 15:50:41,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41" (1/1) ... [2018-10-22 15:50:41,969 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 15:50:41,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 15:50:41,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 15:50:41,970 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 15:50:41,977 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41" (1/1) ... [2018-10-22 15:50:41,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41" (1/1) ... [2018-10-22 15:50:41,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41" (1/1) ... [2018-10-22 15:50:41,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41" (1/1) ... [2018-10-22 15:50:41,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41" (1/1) ... [2018-10-22 15:50:41,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41" (1/1) ... [2018-10-22 15:50:41,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41" (1/1) ... [2018-10-22 15:50:41,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 15:50:41,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 15:50:41,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 15:50:41,987 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 15:50:41,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41" (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 [2018-10-22 15:50:42,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 15:50:42,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 15:50:42,266 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 15:50:42,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:50:42 BoogieIcfgContainer [2018-10-22 15:50:42,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 15:50:42,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 15:50:42,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 15:50:42,277 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 15:50:42,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 03:50:41" (1/3) ... [2018-10-22 15:50:42,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5e34cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:50:42, skipping insertion in model container [2018-10-22 15:50:42,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 03:50:41" (2/3) ... [2018-10-22 15:50:42,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5e34cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 03:50:42, skipping insertion in model container [2018-10-22 15:50:42,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 03:50:42" (3/3) ... [2018-10-22 15:50:42,283 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_true-unreach-call_true-termination.i [2018-10-22 15:50:42,295 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 15:50:42,302 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 15:50:42,318 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 15:50:42,349 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 15:50:42,350 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 15:50:42,350 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 15:50:42,351 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 15:50:42,351 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 15:50:42,351 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 15:50:42,351 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 15:50:42,351 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 15:50:42,351 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 15:50:42,366 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-10-22 15:50:42,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-22 15:50:42,372 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:50:42,373 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-10-22 15:50:42,376 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:50:42,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:50:42,382 INFO L82 PathProgramCache]: Analyzing trace with hash 889814567, now seen corresponding path program 1 times [2018-10-22 15:50:42,384 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:50:42,385 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:50:42,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:42,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:42,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:42,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:50:42,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:50:42,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 15:50:42,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 15:50:42,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 15:50:42,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 15:50:42,504 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2018-10-22 15:50:42,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:50:42,519 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-10-22 15:50:42,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 15:50:42,521 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-10-22 15:50:42,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:50:42,530 INFO L225 Difference]: With dead ends: 21 [2018-10-22 15:50:42,530 INFO L226 Difference]: Without dead ends: 9 [2018-10-22 15:50:42,534 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 [2018-10-22 15:50:42,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-22 15:50:42,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-22 15:50:42,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-22 15:50:42,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-22 15:50:42,564 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-10-22 15:50:42,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:50:42,565 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-10-22 15:50:42,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 15:50:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-22 15:50:42,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-22 15:50:42,566 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:50:42,566 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:50:42,566 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:50:42,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:50:42,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1805894861, now seen corresponding path program 1 times [2018-10-22 15:50:42,567 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:50:42,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:50:42,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:42,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:42,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:42,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:50:42,619 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 15:50:42,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 15:50:42,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 15:50:42,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 15:50:42,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:50:42,623 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2018-10-22 15:50:42,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:50:42,712 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-10-22 15:50:42,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 15:50:42,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-10-22 15:50:42,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:50:42,714 INFO L225 Difference]: With dead ends: 16 [2018-10-22 15:50:42,714 INFO L226 Difference]: Without dead ends: 12 [2018-10-22 15:50:42,716 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 15:50:42,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-10-22 15:50:42,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2018-10-22 15:50:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-10-22 15:50:42,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-10-22 15:50:42,719 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2018-10-22 15:50:42,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:50:42,720 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-10-22 15:50:42,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 15:50:42,720 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-10-22 15:50:42,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-22 15:50:42,721 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:50:42,721 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 15:50:42,722 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:50:42,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:50:42,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1994321781, now seen corresponding path program 1 times [2018-10-22 15:50:42,722 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:50:42,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:50:42,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:42,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:42,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:42,853 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:50:42,854 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:50:42,854 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:50:42,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:42,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:50:42,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:50:42,949 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:50:42,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-10-22 15:50:42,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-22 15:50:42,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-22 15:50:42,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-22 15:50:42,951 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 4 states. [2018-10-22 15:50:43,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:50:43,134 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-10-22 15:50:43,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-22 15:50:43,135 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-10-22 15:50:43,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:50:43,136 INFO L225 Difference]: With dead ends: 19 [2018-10-22 15:50:43,136 INFO L226 Difference]: Without dead ends: 15 [2018-10-22 15:50:43,138 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-22 15:50:43,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-10-22 15:50:43,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2018-10-22 15:50:43,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-10-22 15:50:43,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-10-22 15:50:43,143 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2018-10-22 15:50:43,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:50:43,143 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-10-22 15:50:43,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-22 15:50:43,143 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-10-22 15:50:43,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 15:50:43,144 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:50:43,144 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-10-22 15:50:43,145 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:50:43,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:50:43,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1089618957, now seen corresponding path program 2 times [2018-10-22 15:50:43,146 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:50:43,146 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:50:43,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:43,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 15:50:43,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:43,229 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:50:43,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:50:43,230 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:50:43,240 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-22 15:50:43,262 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-22 15:50:43,262 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:50:43,264 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:50:43,269 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:50:43,290 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-22 15:50:43,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-10-22 15:50:43,291 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 15:50:43,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 15:50:43,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:50:43,292 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 5 states. [2018-10-22 15:50:43,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:50:43,375 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2018-10-22 15:50:43,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 15:50:43,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-10-22 15:50:43,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:50:43,376 INFO L225 Difference]: With dead ends: 22 [2018-10-22 15:50:43,376 INFO L226 Difference]: Without dead ends: 18 [2018-10-22 15:50:43,377 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-22 15:50:43,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-10-22 15:50:43,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-10-22 15:50:43,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-22 15:50:43,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-10-22 15:50:43,381 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 13 [2018-10-22 15:50:43,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:50:43,382 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-10-22 15:50:43,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 15:50:43,382 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-10-22 15:50:43,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-22 15:50:43,383 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 15:50:43,383 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1] [2018-10-22 15:50:43,383 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 15:50:43,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 15:50:43,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1122715979, now seen corresponding path program 3 times [2018-10-22 15:50:43,384 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-22 15:50:43,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-22 15:50:43,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:43,385 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-22 15:50:43,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 15:50:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 15:50:43,531 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 15:50:43,531 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 15:50:43,532 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-22 15:50:43,542 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-22 15:50:43,552 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-10-22 15:50:43,552 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-22 15:50:43,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 15:50:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-22 15:50:43,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 15:50:43,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-22 15:50:43,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-22 15:50:43,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-22 15:50:43,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-10-22 15:50:43,911 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 10 states. [2018-10-22 15:50:44,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 15:50:44,006 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2018-10-22 15:50:44,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-22 15:50:44,006 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2018-10-22 15:50:44,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 15:50:44,007 INFO L225 Difference]: With dead ends: 25 [2018-10-22 15:50:44,007 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 15:50:44,008 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-10-22 15:50:44,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 15:50:44,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 15:50:44,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 15:50:44,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 15:50:44,009 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-10-22 15:50:44,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 15:50:44,009 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 15:50:44,009 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-22 15:50:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 15:50:44,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 15:50:44,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 15:50:44,049 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 15:50:44,049 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 15:50:44,050 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 15:50:44,050 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-22 15:50:44,050 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-22 15:50:44,050 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 15:50:44,051 INFO L428 ceAbstractionStarter]: At program point L14(lines 10 15) the Hoare annotation is: true [2018-10-22 15:50:44,051 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-10-22 15:50:44,051 INFO L425 ceAbstractionStarter]: For program point L12-3(line 12) no Hoare annotation was computed. [2018-10-22 15:50:44,051 INFO L421 ceAbstractionStarter]: At program point L12-4(line 12) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 1000000) [2018-10-22 15:50:44,051 INFO L425 ceAbstractionStarter]: For program point L12-5(line 12) no Hoare annotation was computed. [2018-10-22 15:50:44,051 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 15:50:44,052 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-10-22 15:50:44,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 03:50:44 BoogieIcfgContainer [2018-10-22 15:50:44,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 15:50:44,063 INFO L168 Benchmark]: Toolchain (without parser) took 2416.70 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -708.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB. [2018-10-22 15:50:44,065 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:50:44,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.00 ms. Allocated memory is still 1.6 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. [2018-10-22 15:50:44,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:50:44,067 INFO L168 Benchmark]: Boogie Preprocessor took 16.64 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 15:50:44,068 INFO L168 Benchmark]: RCFGBuilder took 283.68 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -816.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-10-22 15:50:44,069 INFO L168 Benchmark]: TraceAbstraction took 1791.67 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 97.5 MB). Peak memory consumption was 97.5 MB. Max. memory is 7.1 GB. [2018-10-22 15:50:44,074 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 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 280.00 ms. Allocated memory is still 1.6 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 40.22 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 16.64 ms. Allocated memory is still 1.6 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 283.68 ms. Allocated memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -816.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1791.67 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 97.5 MB). Peak memory consumption was 97.5 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: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: i <= 1000000 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 19 SDslu, 38 SDs, 0 SdLazy, 55 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=4, 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, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 5 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 91 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 2089 SizeOfPredicates, 5 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 15/48 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...