java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_oct_cong.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005b.c.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 17:31:31,083 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 17:31:31,085 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 17:31:31,099 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-03 17:31:31,167 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_oct_cong.epf [2018-12-03 17:31:31,189 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 17:31:31,189 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 17:31:31,190 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 17:31:31,190 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 17:31:31,193 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 17:31:31,193 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 17:31:31,194 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 17:31:31,194 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 17:31:31,194 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 17:31:31,194 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 17:31:31,194 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 17:31:31,195 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 17:31:31,195 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 17:31:31,196 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 17:31:31,197 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 17:31:31,197 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 17:31:31,197 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 17:31:31,197 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 17:31:31,198 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 17:31:31,198 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 17:31:31,198 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 17:31:31,198 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 17:31:31,198 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 17:31:31,198 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 17:31:31,200 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 17:31:31,201 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 17:31:31,201 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 17:31:31,201 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 17:31:31,201 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 17:31:31,201 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 17:31:31,202 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 17:31:31,202 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 17:31:31,202 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 17:31:31,202 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 17:31:31,202 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 17:31:31,203 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 17:31:31,203 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 17:31:31,203 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 17:31:31,203 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 17:31:31,250 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 17:31:31,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 17:31:31,273 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 17:31:31,274 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 17:31:31,275 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 17:31:31,276 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005b.c.i_4.bpl [2018-12-03 17:31:31,276 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/cggmp2005b.c.i_4.bpl' [2018-12-03 17:31:31,325 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 17:31:31,327 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 17:31:31,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 17:31:31,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 17:31:31,329 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 17:31:31,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:31:31" (1/1) ... [2018-12-03 17:31:31,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:31:31" (1/1) ... [2018-12-03 17:31:31,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 17:31:31,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 17:31:31,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 17:31:31,369 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 17:31:31,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:31:31" (1/1) ... [2018-12-03 17:31:31,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:31:31" (1/1) ... [2018-12-03 17:31:31,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:31:31" (1/1) ... [2018-12-03 17:31:31,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:31:31" (1/1) ... [2018-12-03 17:31:31,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:31:31" (1/1) ... [2018-12-03 17:31:31,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:31:31" (1/1) ... [2018-12-03 17:31:31,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:31:31" (1/1) ... [2018-12-03 17:31:31,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 17:31:31,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 17:31:31,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 17:31:31,394 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 17:31:31,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:31:31" (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 [2018-12-03 17:31:31,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 17:31:31,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 17:31:31,691 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 17:31:31,691 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-03 17:31:31,692 INFO L202 PluginConnector]: Adding new model cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:31:31 BoogieIcfgContainer [2018-12-03 17:31:31,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 17:31:31,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 17:31:31,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 17:31:31,700 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 17:31:31,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:31:31" (1/2) ... [2018-12-03 17:31:31,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4caefb14 and model type cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:31:31, skipping insertion in model container [2018-12-03 17:31:31,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:31:31" (2/2) ... [2018-12-03 17:31:31,705 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005b.c.i_4.bpl [2018-12-03 17:31:31,716 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 17:31:31,724 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 17:31:31,744 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 17:31:31,782 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 17:31:31,783 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 17:31:31,783 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 17:31:31,783 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 17:31:31,784 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 17:31:31,784 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 17:31:31,784 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 17:31:31,784 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 17:31:31,802 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-12-03 17:31:31,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-03 17:31:31,809 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 17:31:31,810 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-03 17:31:31,814 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 17:31:31,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:31:31,826 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-12-03 17:31:31,829 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 17:31:31,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:31:31,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 17:31:31,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:31:31,887 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 17:31:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 17:31:31,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 17:31:31,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 17:31:31,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 17:31:31,991 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 17:31:31,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 17:31:32,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 17:31:32,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 17:31:32,011 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-12-03 17:31:32,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 17:31:32,063 INFO L93 Difference]: Finished difference Result 10 states and 15 transitions. [2018-12-03 17:31:32,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 17:31:32,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-03 17:31:32,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 17:31:32,086 INFO L225 Difference]: With dead ends: 10 [2018-12-03 17:31:32,086 INFO L226 Difference]: Without dead ends: 6 [2018-12-03 17:31:32,092 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 17:31:32,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-12-03 17:31:32,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-12-03 17:31:32,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-03 17:31:32,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-12-03 17:31:32,158 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 7 transitions. Word has length 3 [2018-12-03 17:31:32,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 17:31:32,159 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-12-03 17:31:32,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 17:31:32,162 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-12-03 17:31:32,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-03 17:31:32,162 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 17:31:32,163 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-03 17:31:32,163 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 17:31:32,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:31:32,164 INFO L82 PathProgramCache]: Analyzing trace with hash 28852267, now seen corresponding path program 1 times [2018-12-03 17:31:32,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 17:31:32,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:31:32,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 17:31:32,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:31:32,166 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 17:31:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 17:31:32,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 17:31:32,225 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 17:31:32,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 17:31:32,225 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 17:31:32,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 17:31:32,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 17:31:32,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 17:31:32,229 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. Second operand 3 states. [2018-12-03 17:31:32,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 17:31:32,269 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2018-12-03 17:31:32,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 17:31:32,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2018-12-03 17:31:32,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 17:31:32,271 INFO L225 Difference]: With dead ends: 11 [2018-12-03 17:31:32,271 INFO L226 Difference]: Without dead ends: 7 [2018-12-03 17:31:32,272 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 17:31:32,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-12-03 17:31:32,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-12-03 17:31:32,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-03 17:31:32,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-12-03 17:31:32,275 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2018-12-03 17:31:32,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 17:31:32,276 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-12-03 17:31:32,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 17:31:32,276 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2018-12-03 17:31:32,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-03 17:31:32,276 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 17:31:32,277 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-03 17:31:32,277 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 17:31:32,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:31:32,277 INFO L82 PathProgramCache]: Analyzing trace with hash 894489354, now seen corresponding path program 1 times [2018-12-03 17:31:32,278 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 17:31:32,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:31:32,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 17:31:32,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:31:32,279 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 17:31:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 17:31:32,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-03 17:31:32,363 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 17:31:32,364 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 17:31:32,365 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 7 with the following transitions: [2018-12-03 17:31:32,366 INFO L205 CegarAbsIntRunner]: [0], [5], [7], [9], [15], [17] [2018-12-03 17:31:32,428 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-03 17:31:32,429 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 17:31:33,354 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 17:31:33,356 INFO L272 AbstractInterpreter]: Visited 6 different actions 182 times. Merged at 3 different actions 88 times. Widened at 3 different actions 79 times. Found 22 fixpoints after 3 different actions. Largest state had 0 variables. [2018-12-03 17:31:33,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:31:33,408 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 17:31:33,408 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 17:31:33,408 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-12-03 17:31:33,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 17:31:33,427 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 17:31:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 17:31:33,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 17:31:33,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-03 17:31:33,575 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 17:31:33,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-03 17:31:33,721 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 17:31:33,722 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2018-12-03 17:31:33,722 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 17:31:33,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 17:31:33,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 17:31:33,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-03 17:31:33,724 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. Second operand 4 states. [2018-12-03 17:31:33,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 17:31:33,799 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2018-12-03 17:31:33,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 17:31:33,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-12-03 17:31:33,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 17:31:33,801 INFO L225 Difference]: With dead ends: 11 [2018-12-03 17:31:33,801 INFO L226 Difference]: Without dead ends: 9 [2018-12-03 17:31:33,802 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-03 17:31:33,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-12-03 17:31:33,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-12-03 17:31:33,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-12-03 17:31:33,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-12-03 17:31:33,805 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 6 [2018-12-03 17:31:33,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 17:31:33,805 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-12-03 17:31:33,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 17:31:33,806 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-12-03 17:31:33,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-03 17:31:33,806 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 17:31:33,807 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2018-12-03 17:31:33,807 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 17:31:33,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:31:33,808 INFO L82 PathProgramCache]: Analyzing trace with hash 610875506, now seen corresponding path program 2 times [2018-12-03 17:31:33,808 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 17:31:33,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:31:33,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 17:31:33,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:31:33,809 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 17:31:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 17:31:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 17:31:33,921 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 17:31:33,922 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 17:31:33,922 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-03 17:31:33,922 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-03 17:31:33,922 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 17:31:33,922 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-12-03 17:31:33,939 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-03 17:31:33,940 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-03 17:31:33,954 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-03 17:31:33,955 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 17:31:33,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 17:31:34,003 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-03 17:31:34,004 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 17:31:34,007 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-03 17:31:34,025 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-03 17:31:34,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 6 [2018-12-03 17:31:34,026 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 17:31:34,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 17:31:34,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 17:31:34,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 17:31:34,027 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 3 states. [2018-12-03 17:31:34,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 17:31:34,040 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2018-12-03 17:31:34,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 17:31:34,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-03 17:31:34,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 17:31:34,041 INFO L225 Difference]: With dead ends: 9 [2018-12-03 17:31:34,041 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 17:31:34,042 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 17:31:34,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 17:31:34,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 17:31:34,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 17:31:34,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 17:31:34,043 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-12-03 17:31:34,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 17:31:34,043 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 17:31:34,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 17:31:34,044 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 17:31:34,044 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 17:31:34,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 17:31:34,182 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 53) no Hoare annotation was computed. [2018-12-03 17:31:34,183 INFO L444 ceAbstractionStarter]: At program point L31(lines 31 36) the Hoare annotation is: false [2018-12-03 17:31:34,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 53) no Hoare annotation was computed. [2018-12-03 17:31:34,183 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 53) no Hoare annotation was computed. [2018-12-03 17:31:34,183 INFO L444 ceAbstractionStarter]: At program point L52(lines 35 52) the Hoare annotation is: (or (= ULTIMATE.start_main_~k~4 4) (<= ULTIMATE.start_main_~i~4 1)) [2018-12-03 17:31:34,184 INFO L444 ceAbstractionStarter]: At program point L48(lines 18 48) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~i~4 0) (<= (+ ULTIMATE.start_main_~j~4 100) 0)) (= ULTIMATE.start_main_~k~4 4)) [2018-12-03 17:31:34,184 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 37) no Hoare annotation was computed. [2018-12-03 17:31:34,192 INFO L202 PluginConnector]: Adding new model cggmp2005b.c.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 05:31:34 BoogieIcfgContainer [2018-12-03 17:31:34,193 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 17:31:34,193 INFO L168 Benchmark]: Toolchain (without parser) took 2867.42 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 694.7 MB). Free memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: -667.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2018-12-03 17:31:34,195 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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. [2018-12-03 17:31:34,196 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.03 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. [2018-12-03 17:31:34,196 INFO L168 Benchmark]: Boogie Preprocessor took 23.83 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. [2018-12-03 17:31:34,197 INFO L168 Benchmark]: RCFGBuilder took 299.20 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. [2018-12-03 17:31:34,198 INFO L168 Benchmark]: TraceAbstraction took 2496.44 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 694.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -688.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. [2018-12-03 17:31:34,202 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 0.22 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 40.03 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 23.83 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 299.20 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 2496.44 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 694.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -688.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 37]: 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: 31]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (main_~i~4 <= 0 && main_~j~4 + 100 <= 0) || main_~k~4 == 4 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: main_~k~4 == 4 || main_~i~4 <= 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 2 SDslu, 11 SDs, 0 SdLazy, 16 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.0s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 21 HoareAnnotationTreeSize, 3 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 36 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 524 SizeOfPredicates, 4 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 20/25 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...