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 0.1.23-133090d [2018-10-04 09:20:29,639 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 09:20:29,641 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 09:20:29,653 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 09:20:29,654 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 09:20:29,655 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 09:20:29,656 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 09:20:29,658 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 09:20:29,660 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 09:20:29,661 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 09:20:29,662 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 09:20:29,662 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 09:20:29,663 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 09:20:29,664 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 09:20:29,665 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 09:20:29,666 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 09:20:29,667 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 09:20:29,669 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 09:20:29,671 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 09:20:29,672 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 09:20:29,673 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 09:20:29,675 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 09:20:29,677 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-04 09:20:29,685 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 09:20:29,719 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 09:20:29,719 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 09:20:29,720 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 09:20:29,720 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 09:20:29,721 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 09:20:29,721 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 09:20:29,721 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 09:20:29,722 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 09:20:29,723 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 09:20:29,723 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 09:20:29,723 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 09:20:29,723 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 09:20:29,723 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 09:20:29,724 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 09:20:29,724 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 09:20:29,724 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 09:20:29,724 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 09:20:29,724 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 09:20:29,725 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 09:20:29,725 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 09:20:29,725 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 09:20:29,725 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 09:20:29,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 09:20:29,726 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 09:20:29,726 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 09:20:29,726 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 09:20:29,726 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 09:20:29,726 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 09:20:29,728 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 09:20:29,728 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 09:20:29,792 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 09:20:29,807 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 09:20:29,813 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 09:20:29,814 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 09:20:29,815 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 09:20:29,816 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested9.i_3.bpl [2018-10-04 09:20:29,816 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/nested9.i_3.bpl' [2018-10-04 09:20:29,873 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 09:20:29,874 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 09:20:29,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 09:20:29,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 09:20:29,875 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 09:20:29,898 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 09:20:29" (1/1) ... [2018-10-04 09:20:29,911 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 09:20:29" (1/1) ... [2018-10-04 09:20:29,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 09:20:29,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 09:20:29,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 09:20:29,920 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 09:20:29,931 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 09:20:29" (1/1) ... [2018-10-04 09:20:29,932 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 09:20:29" (1/1) ... [2018-10-04 09:20:29,933 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 09:20:29" (1/1) ... [2018-10-04 09:20:29,933 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 09:20:29" (1/1) ... [2018-10-04 09:20:29,939 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 09:20:29" (1/1) ... [2018-10-04 09:20:29,942 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 09:20:29" (1/1) ... [2018-10-04 09:20:29,943 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 09:20:29" (1/1) ... [2018-10-04 09:20:29,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 09:20:29,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 09:20:29,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 09:20:29,950 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 09:20:29,951 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 09:20:29" (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 09:20:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 09:20:30,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 09:20:30,332 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 09:20:30,333 INFO L202 PluginConnector]: Adding new model nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:20:30 BoogieIcfgContainer [2018-10-04 09:20:30,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 09:20:30,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 09:20:30,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 09:20:30,339 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 09:20:30,339 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 09:20:29" (1/2) ... [2018-10-04 09:20:30,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ae430f and model type nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 09:20:30, skipping insertion in model container [2018-10-04 09:20:30,340 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 09:20:30" (2/2) ... [2018-10-04 09:20:30,344 INFO L112 eAbstractionObserver]: Analyzing ICFG nested9.i_3.bpl [2018-10-04 09:20:30,354 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 09:20:30,363 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 09:20:30,411 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 09:20:30,412 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 09:20:30,412 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 09:20:30,412 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 09:20:30,413 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 09:20:30,413 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 09:20:30,413 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 09:20:30,413 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 09:20:30,413 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 09:20:30,428 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2018-10-04 09:20:30,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 09:20:30,435 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:30,436 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-10-04 09:20:30,437 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:30,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:30,444 INFO L82 PathProgramCache]: Analyzing trace with hash 889599113, now seen corresponding path program 1 times [2018-10-04 09:20:30,446 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:30,447 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:30,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:30,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:30,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:30,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:30,688 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 09:20:30,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:20:30,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-04 09:20:30,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-04 09:20:30,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-04 09:20:30,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-04 09:20:30,718 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2018-10-04 09:20:30,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:30,884 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2018-10-04 09:20:30,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-04 09:20:30,886 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-10-04 09:20:30,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:30,896 INFO L225 Difference]: With dead ends: 15 [2018-10-04 09:20:30,896 INFO L226 Difference]: Without dead ends: 9 [2018-10-04 09:20:30,900 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 09:20:30,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-04 09:20:30,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-04 09:20:30,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-04 09:20:30,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-10-04 09:20:30,931 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2018-10-04 09:20:30,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:30,931 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-10-04 09:20:30,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-04 09:20:30,932 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2018-10-04 09:20:30,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 09:20:30,932 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:30,932 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-10-04 09:20:30,933 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:30,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:30,933 INFO L82 PathProgramCache]: Analyzing trace with hash 141423237, now seen corresponding path program 1 times [2018-10-04 09:20:30,933 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:30,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:30,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:30,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:30,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:31,082 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 09:20:31,083 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:20:31,083 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 09:20:31,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:31,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:31,123 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:20:31,299 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 09:20:31,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-04 09:20:31,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2018-10-04 09:20:31,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-04 09:20:31,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-04 09:20:31,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-04 09:20:31,322 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 9 states. [2018-10-04 09:20:31,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:31,761 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-10-04 09:20:31,762 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-04 09:20:31,762 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2018-10-04 09:20:31,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:31,763 INFO L225 Difference]: With dead ends: 15 [2018-10-04 09:20:31,763 INFO L226 Difference]: Without dead ends: 13 [2018-10-04 09:20:31,766 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2018-10-04 09:20:31,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-10-04 09:20:31,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2018-10-04 09:20:31,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-10-04 09:20:31,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2018-10-04 09:20:31,775 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2018-10-04 09:20:31,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:31,776 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2018-10-04 09:20:31,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-04 09:20:31,777 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-10-04 09:20:31,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 09:20:31,778 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:31,778 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-10-04 09:20:31,779 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:31,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:31,779 INFO L82 PathProgramCache]: Analyzing trace with hash -1531170369, now seen corresponding path program 1 times [2018-10-04 09:20:31,779 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:31,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:31,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:31,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:31,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:31,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:31,932 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 09:20:31,932 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:20:31,933 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 09:20:31,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:31,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:20:32,177 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 09:20:32,198 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:20:32,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-10-04 09:20:32,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-04 09:20:32,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-04 09:20:32,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-10-04 09:20:32,204 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 10 states. [2018-10-04 09:20:32,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:32,391 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-10-04 09:20:32,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-04 09:20:32,392 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2018-10-04 09:20:32,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:32,394 INFO L225 Difference]: With dead ends: 12 [2018-10-04 09:20:32,394 INFO L226 Difference]: Without dead ends: 0 [2018-10-04 09:20:32,395 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-10-04 09:20:32,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-04 09:20:32,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-04 09:20:32,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-04 09:20:32,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-04 09:20:32,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-10-04 09:20:32,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:32,399 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-04 09:20:32,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-04 09:20:32,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-04 09:20:32,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-04 09:20:32,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-04 09:20:32,677 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-04 09:20:32,871 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 18 [2018-10-04 09:20:32,995 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 15 [2018-10-04 09:20:32,998 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 81) no Hoare annotation was computed. [2018-10-04 09:20:32,998 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 81) no Hoare annotation was computed. [2018-10-04 09:20:32,998 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 81) no Hoare annotation was computed. [2018-10-04 09:20:32,999 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 09:20:32,999 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 09:20:32,999 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 09:20:32,999 INFO L421 ceAbstractionStarter]: At program point L72(lines 72 79) the Hoare annotation is: false [2018-10-04 09:20:33,000 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 80) no Hoare annotation was computed. [2018-10-04 09:20:33,000 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 09:20:33,011 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,012 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,012 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,014 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,015 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,015 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,016 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,017 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,017 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,018 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,018 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,018 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,020 INFO L202 PluginConnector]: Adding new model nested9.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 09:20:33 BoogieIcfgContainer [2018-10-04 09:20:33,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 09:20:33,022 INFO L168 Benchmark]: Toolchain (without parser) took 3148.32 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 09:20:33,023 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 09:20:33,023 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.04 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 09:20:33,024 INFO L168 Benchmark]: Boogie Preprocessor took 25.60 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 09:20:33,025 INFO L168 Benchmark]: RCFGBuilder took 388.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-04 09:20:33,026 INFO L168 Benchmark]: TraceAbstraction took 2686.40 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: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-10-04 09:20:33,030 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 44.04 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 25.60 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 388.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2686.40 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: 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 09:20:33,040 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,040 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,040 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,042 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,042 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,042 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 09:20:33,043 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,044 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,044 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,045 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,045 WARN L390 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~5,QUANTIFIED] [2018-10-04 09:20:33,045 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, 0.9s 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, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s 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_09-20-33-051.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_09-20-33-051.csv Received shutdown request...