java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested9.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f [2018-10-04 12:26:16,035 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 12:26:16,037 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 12:26:16,055 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 12:26:16,055 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 12:26:16,056 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 12:26:16,058 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 12:26:16,060 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 12:26:16,062 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 12:26:16,064 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 12:26:16,065 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 12:26:16,065 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 12:26:16,068 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 12:26:16,069 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 12:26:16,070 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 12:26:16,072 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 12:26:16,073 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 12:26:16,084 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 12:26:16,089 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 12:26:16,091 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 12:26:16,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 12:26:16,095 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 12:26:16,097 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-04 12:26:16,112 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-04 12:26:16,135 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 12:26:16,135 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 12:26:16,138 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 12:26:16,138 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 12:26:16,139 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 12:26:16,140 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 12:26:16,140 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 12:26:16,140 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 12:26:16,140 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 12:26:16,140 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 12:26:16,141 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 12:26:16,141 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 12:26:16,141 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 12:26:16,141 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 12:26:16,141 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 12:26:16,141 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 12:26:16,143 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 12:26:16,143 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 12:26:16,143 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 12:26:16,143 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 12:26:16,144 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 12:26:16,144 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 12:26:16,144 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 12:26:16,144 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 12:26:16,145 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 12:26:16,145 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 12:26:16,145 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 12:26:16,145 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 12:26:16,145 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 12:26:16,145 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 12:26:16,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 12:26:16,210 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 12:26:16,214 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 12:26:16,215 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 12:26:16,216 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 12:26:16,217 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested9.i_3.bpl [2018-10-04 12:26:16,217 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested9.i_3.bpl' [2018-10-04 12:26:16,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 12:26:16,273 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 12:26:16,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 12:26:16,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 12:26:16,274 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 12:26:16,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:26:16" (1/1) ... [2018-10-04 12:26:16,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:26:16" (1/1) ... [2018-10-04 12:26:16,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 12:26:16,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 12:26:16,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 12:26:16,314 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 12:26:16,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:26:16" (1/1) ... [2018-10-04 12:26:16,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:26:16" (1/1) ... [2018-10-04 12:26:16,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:26:16" (1/1) ... [2018-10-04 12:26:16,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:26:16" (1/1) ... [2018-10-04 12:26:16,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:26:16" (1/1) ... [2018-10-04 12:26:16,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:26:16" (1/1) ... [2018-10-04 12:26:16,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:26:16" (1/1) ... [2018-10-04 12:26:16,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 12:26:16,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 12:26:16,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 12:26:16,335 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 12:26:16,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:26:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 12:26:16,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 12:26:16,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 12:26:16,690 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 12:26:16,691 INFO L202 PluginConnector]: Adding new model nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:26:16 BoogieIcfgContainer [2018-10-04 12:26:16,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 12:26:16,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 12:26:16,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 12:26:16,695 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 12:26:16,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:26:16" (1/2) ... [2018-10-04 12:26:16,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729d9df and model type nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 12:26:16, skipping insertion in model container [2018-10-04 12:26:16,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:26:16" (2/2) ... [2018-10-04 12:26:16,699 INFO L112 eAbstractionObserver]: Analyzing ICFG nested9.i_3.bpl [2018-10-04 12:26:16,708 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 12:26:16,716 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 12:26:16,766 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 12:26:16,767 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 12:26:16,767 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 12:26:16,767 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 12:26:16,768 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 12:26:16,768 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 12:26:16,768 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 12:26:16,768 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 12:26:16,768 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 12:26:16,784 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2018-10-04 12:26:16,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 12:26:16,790 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:26:16,791 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-10-04 12:26:16,792 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:26:16,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:26:16,799 INFO L82 PathProgramCache]: Analyzing trace with hash 889599113, now seen corresponding path program 1 times [2018-10-04 12:26:16,801 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:26:16,802 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:26:16,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:26:16,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:26:16,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:26:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:26:17,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:26:17,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 12:26:17,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-04 12:26:17,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-04 12:26:17,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-04 12:26:17,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-04 12:26:17,114 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2018-10-04 12:26:17,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:26:17,278 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2018-10-04 12:26:17,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-04 12:26:17,279 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-10-04 12:26:17,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:26:17,289 INFO L225 Difference]: With dead ends: 15 [2018-10-04 12:26:17,289 INFO L226 Difference]: Without dead ends: 9 [2018-10-04 12:26:17,294 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-04 12:26:17,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-04 12:26:17,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-04 12:26:17,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-04 12:26:17,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-10-04 12:26:17,329 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2018-10-04 12:26:17,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:26:17,330 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-10-04 12:26:17,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-04 12:26:17,330 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2018-10-04 12:26:17,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 12:26:17,331 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:26:17,331 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-10-04 12:26:17,331 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:26:17,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:26:17,332 INFO L82 PathProgramCache]: Analyzing trace with hash 141423237, now seen corresponding path program 1 times [2018-10-04 12:26:17,332 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:26:17,332 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:26:17,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:26:17,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:26:17,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:26:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:26:17,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:26:17,480 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:26:17,480 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-10-04 12:26:17,488 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:26:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:26:17,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:26:17,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:26:17,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:26:17,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2018-10-04 12:26:17,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-04 12:26:17,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-04 12:26:17,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-04 12:26:17,768 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 9 states. [2018-10-04 12:26:18,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:26:18,203 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-10-04 12:26:18,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-04 12:26:18,204 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2018-10-04 12:26:18,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:26:18,205 INFO L225 Difference]: With dead ends: 15 [2018-10-04 12:26:18,205 INFO L226 Difference]: Without dead ends: 13 [2018-10-04 12:26:18,207 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2018-10-04 12:26:18,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-10-04 12:26:18,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2018-10-04 12:26:18,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-10-04 12:26:18,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2018-10-04 12:26:18,212 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2018-10-04 12:26:18,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:26:18,213 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2018-10-04 12:26:18,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-04 12:26:18,213 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-10-04 12:26:18,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 12:26:18,214 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:26:18,214 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-10-04 12:26:18,216 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:26:18,216 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:26:18,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1531170369, now seen corresponding path program 1 times [2018-10-04 12:26:18,217 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:26:18,217 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:26:18,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:26:18,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:26:18,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:26:18,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:26:18,400 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:26:18,400 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:26:18,401 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-10-04 12:26:18,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:26:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:26:18,442 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:26:18,625 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:26:18,646 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:26:18,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-10-04 12:26:18,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-04 12:26:18,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-04 12:26:18,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-10-04 12:26:18,648 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 10 states. [2018-10-04 12:26:18,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:26:18,843 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-10-04 12:26:18,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-04 12:26:18,843 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2018-10-04 12:26:18,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:26:18,843 INFO L225 Difference]: With dead ends: 12 [2018-10-04 12:26:18,844 INFO L226 Difference]: Without dead ends: 0 [2018-10-04 12:26:18,845 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-10-04 12:26:18,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-04 12:26:18,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-04 12:26:18,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-04 12:26:18,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-04 12:26:18,846 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-10-04 12:26:18,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:26:18,846 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-04 12:26:18,846 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-04 12:26:18,846 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-04 12:26:18,846 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-04 12:26:18,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-04 12:26:19,131 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-04 12:26:19,323 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 18 [2018-10-04 12:26:19,401 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 81) no Hoare annotation was computed. [2018-10-04 12:26:19,401 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 81) no Hoare annotation was computed. [2018-10-04 12:26:19,401 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 81) no Hoare annotation was computed. [2018-10-04 12:26:19,402 INFO L421 ceAbstractionStarter]: At program point L55(lines 41 55) the Hoare annotation is: (or (and (<= 0 ULTIMATE.start_main_~i~5) (<= ULTIMATE.start_main_~i~5 0)) (and (<= ULTIMATE.start_main_~j~5 (* 2 ULTIMATE.start_main_~i~5)) (<= ULTIMATE.start_main_~i~5 1) (<= 1 ULTIMATE.start_main_~i~5))) [2018-10-04 12:26:19,402 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 80) no Hoare annotation was computed. [2018-10-04 12:26:19,402 INFO L421 ceAbstractionStarter]: At program point L47(lines 47 56) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~j~5 (* 2 ULTIMATE.start_main_~i~5)))) (or (and .cse0 (<= ULTIMATE.start_main_~i~5 1) (< ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~n~5) (<= 1 ULTIMATE.start_main_~i~5)) (and .cse0 (<= (* 3 ULTIMATE.start_main_~i~5) ULTIMATE.start_main_~j~5) (<= 0 ULTIMATE.start_main_~i~5)))) [2018-10-04 12:26:19,403 INFO L421 ceAbstractionStarter]: At program point L78(lines 59 78) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~i~5 Int)) (and (<= ULTIMATE.start_main_~j~5 (* 2 ULTIMATE.start_main_~i~5)) (<= ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~k~5) (<= ULTIMATE.start_main_~i~5 1))) (<= ULTIMATE.start_main_~i~5 1) (< ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~n~5) (<= 1 ULTIMATE.start_main_~i~5)) [2018-10-04 12:26:19,403 INFO L421 ceAbstractionStarter]: At program point L72(lines 72 79) the Hoare annotation is: false [2018-10-04 12:26:19,403 INFO L421 ceAbstractionStarter]: At program point L66(lines 66 73) the Hoare annotation is: (and (= ULTIMATE.start___VERIFIER_assert_~cond 1) (exists ((ULTIMATE.start_main_~i~5 Int)) (and (<= ULTIMATE.start_main_~j~5 (* 2 ULTIMATE.start_main_~i~5)) (<= ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~k~5) (<= ULTIMATE.start_main_~i~5 1))) (<= ULTIMATE.start_main_~k~5 ULTIMATE.start_main_~i~5) (<= ULTIMATE.start_main_~i~5 1) (< ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~n~5) (<= 1 ULTIMATE.start_main_~i~5)) [2018-10-04 12:26:19,415 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,416 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,416 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,418 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,419 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,419 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,420 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,421 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,421 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,422 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,422 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,423 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,425 INFO L202 PluginConnector]: Adding new model nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 12:26:19 BoogieIcfgContainer [2018-10-04 12:26:19,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 12:26:19,426 INFO L168 Benchmark]: Toolchain (without parser) took 3154.02 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 129.5 MB). Peak memory consumption was 129.5 MB. Max. memory is 7.1 GB. [2018-10-04 12:26:19,427 INFO L168 Benchmark]: Boogie PL CUP Parser 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. [2018-10-04 12:26:19,428 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.21 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. [2018-10-04 12:26:19,429 INFO L168 Benchmark]: Boogie Preprocessor took 20.37 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. [2018-10-04 12:26:19,429 INFO L168 Benchmark]: RCFGBuilder took 356.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-04 12:26:19,430 INFO L168 Benchmark]: TraceAbstraction took 2732.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-10-04 12:26:19,435 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser 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. * Boogie Procedure Inliner took 40.21 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. * Boogie Preprocessor took 20.37 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. * RCFGBuilder took 356.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2732.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: (((main_~j~5 <= 2 * main_~i~5 && main_~i~5 <= 1) && main_~i~5 < main_~n~5) && 1 <= main_~i~5) || ((main_~j~5 <= 2 * main_~i~5 && 3 * main_~i~5 <= main_~j~5) && 0 <= main_~i~5) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: (0 <= main_~i~5 && main_~i~5 <= 0) || ((main_~j~5 <= 2 * main_~i~5 && main_~i~5 <= 1) && 1 <= main_~i~5) - InvariantResult [Line: 66]: Loop Invariant [2018-10-04 12:26:19,445 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,445 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,445 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,447 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,447 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,447 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] Derived loop invariant: ((((__VERIFIER_assert_~cond == 1 && (exists ULTIMATE.start_main_~i~5 : int :: (main_~j~5 <= 2 * ULTIMATE.start_main_~i~5 && ULTIMATE.start_main_~i~5 <= main_~k~5) && ULTIMATE.start_main_~i~5 <= 1)) && main_~k~5 <= main_~i~5) && main_~i~5 <= 1) && main_~i~5 < main_~n~5) && 1 <= main_~i~5 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 59]: Loop Invariant [2018-10-04 12:26:19,448 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,449 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,449 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,450 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,450 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 12:26:19,450 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] Derived loop invariant: (((exists ULTIMATE.start_main_~i~5 : int :: (main_~j~5 <= 2 * ULTIMATE.start_main_~i~5 && ULTIMATE.start_main_~i~5 <= main_~k~5) && ULTIMATE.start_main_~i~5 <= 1) && main_~i~5 <= 1) && main_~i~5 < main_~n~5) && 1 <= main_~i~5 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 24 SDslu, 10 SDs, 0 SdLazy, 63 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 103 HoareAnnotationTreeSize, 5 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 47 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 3 QuantifiedInterpolants, 1250 SizeOfPredicates, 8 NumberOfNonLiveVariables, 82 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 7/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nested9.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_12-26-19-456.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/nested9.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-04_12-26-19-456.csv Received shutdown request...