java -ea -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_oct.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f57a05f [2019-01-07 18:40:55,871 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-07 18:40:55,874 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-07 18:40:55,886 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-07 18:40:55,887 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-07 18:40:55,889 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-07 18:40:55,890 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-07 18:40:55,892 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-07 18:40:55,895 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-07 18:40:55,897 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-07 18:40:55,898 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-07 18:40:55,898 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-07 18:40:55,901 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-07 18:40:55,902 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-07 18:40:55,903 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-07 18:40:55,907 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-07 18:40:55,908 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-07 18:40:55,912 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-07 18:40:55,923 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-07 18:40:55,925 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-07 18:40:55,926 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-07 18:40:55,931 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-07 18:40:55,933 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-07 18:40:55,933 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-07 18:40:55,933 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-07 18:40:55,937 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-07 18:40:55,938 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-07 18:40:55,942 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-07 18:40:55,944 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-07 18:40:55,947 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-07 18:40:55,948 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-07 18:40:55,950 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-07 18:40:55,950 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-07 18:40:55,950 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-07 18:40:55,951 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-07 18:40:55,953 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-07 18:40:55,953 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf [2019-01-07 18:40:55,977 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-07 18:40:55,978 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-07 18:40:55,979 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-07 18:40:55,979 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-07 18:40:55,979 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-07 18:40:55,979 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-07 18:40:55,979 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-07 18:40:55,980 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-07 18:40:55,980 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-07 18:40:55,981 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-01-07 18:40:55,981 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-01-07 18:40:55,981 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-07 18:40:55,981 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-07 18:40:55,982 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-07 18:40:55,982 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-07 18:40:55,982 INFO L133 SettingsManager]: * Use SBE=true [2019-01-07 18:40:55,982 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-07 18:40:55,984 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-07 18:40:55,984 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-07 18:40:55,985 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-07 18:40:55,985 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-07 18:40:55,985 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-07 18:40:55,985 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-07 18:40:55,985 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-07 18:40:55,985 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-07 18:40:55,986 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-07 18:40:55,986 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-07 18:40:55,986 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-07 18:40:55,987 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-07 18:40:55,987 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-07 18:40:55,987 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-07 18:40:55,987 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-07 18:40:55,987 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-07 18:40:55,988 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-07 18:40:55,988 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-07 18:40:55,988 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-07 18:40:55,988 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-07 18:40:55,989 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-07 18:40:55,989 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-07 18:40:56,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-07 18:40:56,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-07 18:40:56,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-07 18:40:56,060 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-07 18:40:56,060 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-07 18:40:56,061 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit01.bpl [2019-01-07 18:40:56,062 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit01.bpl' [2019-01-07 18:40:56,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-07 18:40:56,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-07 18:40:56,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-07 18:40:56,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-07 18:40:56,108 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-07 18:40:56,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:40:56" (1/1) ... [2019-01-07 18:40:56,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:40:56" (1/1) ... [2019-01-07 18:40:56,149 WARN L165 Inliner]: Program contained no entry procedure! [2019-01-07 18:40:56,149 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-01-07 18:40:56,149 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-01-07 18:40:56,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-07 18:40:56,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-07 18:40:56,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-07 18:40:56,153 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-07 18:40:56,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:40:56" (1/1) ... [2019-01-07 18:40:56,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:40:56" (1/1) ... [2019-01-07 18:40:56,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:40:56" (1/1) ... [2019-01-07 18:40:56,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:40:56" (1/1) ... [2019-01-07 18:40:56,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:40:56" (1/1) ... [2019-01-07 18:40:56,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:40:56" (1/1) ... [2019-01-07 18:40:56,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:40:56" (1/1) ... [2019-01-07 18:40:56,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-07 18:40:56,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-07 18:40:56,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-07 18:40:56,184 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-07 18:40:56,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:40:56" (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 [2019-01-07 18:40:56,264 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-01-07 18:40:56,264 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-01-07 18:40:56,264 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-01-07 18:40:56,504 INFO L278 CfgBuilder]: Using library mode [2019-01-07 18:40:56,504 INFO L286 CfgBuilder]: Removed 0 assue(true) statements. [2019-01-07 18:40:56,506 INFO L202 PluginConnector]: Adding new model ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 06:40:56 BoogieIcfgContainer [2019-01-07 18:40:56,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-07 18:40:56,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-07 18:40:56,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-07 18:40:56,511 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-07 18:40:56,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.01 06:40:56" (1/2) ... [2019-01-07 18:40:56,512 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717c94a4 and model type ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 06:40:56, skipping insertion in model container [2019-01-07 18:40:56,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 06:40:56" (2/2) ... [2019-01-07 18:40:56,514 INFO L112 eAbstractionObserver]: Analyzing ICFG ArrayInit01.bpl [2019-01-07 18:40:56,526 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-07 18:40:56,535 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-07 18:40:56,567 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-07 18:40:56,630 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-07 18:40:56,631 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-07 18:40:56,631 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-07 18:40:56,631 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-07 18:40:56,631 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-07 18:40:56,631 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-07 18:40:56,632 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-07 18:40:56,632 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-07 18:40:56,665 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-01-07 18:40:56,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-07 18:40:56,684 INFO L394 BasicCegarLoop]: Found error trace [2019-01-07 18:40:56,686 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-07 18:40:56,688 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-07 18:40:56,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-07 18:40:56,696 INFO L82 PathProgramCache]: Analyzing trace with hash 29984, now seen corresponding path program 1 times [2019-01-07 18:40:56,700 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-07 18:40:56,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 18:40:56,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-07 18:40:56,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 18:40:56,774 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-07 18:40:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 18:40:56,935 INFO L273 TraceCheckUtils]: 0: Hoare triple {9#true} i := 0;assume j == i; {11#(= i 0)} is VALID [2019-01-07 18:40:56,940 INFO L273 TraceCheckUtils]: 1: Hoare triple {11#(= i 0)} assume !(i < n);assume 0 <= r && r < n; {10#false} is VALID [2019-01-07 18:40:56,940 INFO L273 TraceCheckUtils]: 2: Hoare triple {10#false} assume !(a[r] == 0); {10#false} is VALID [2019-01-07 18:40:56,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 18:40:56,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-07 18:40:56,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-07 18:40:56,944 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-07 18:40:56,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-07 18:40:56,952 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-07 18:40:56,956 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2019-01-07 18:40:56,969 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-07 18:40:56,970 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-07 18:40:56,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-07 18:40:56,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-07 18:40:56,982 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-01-07 18:40:57,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 18:40:57,101 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-01-07 18:40:57,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-07 18:40:57,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-07 18:40:57,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-07 18:40:57,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-07 18:40:57,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-01-07 18:40:57,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-07 18:40:57,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-01-07 18:40:57,111 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 11 transitions. [2019-01-07 18:40:57,160 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-07 18:40:57,171 INFO L225 Difference]: With dead ends: 11 [2019-01-07 18:40:57,171 INFO L226 Difference]: Without dead ends: 5 [2019-01-07 18:40:57,174 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 [2019-01-07 18:40:57,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-01-07 18:40:57,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-01-07 18:40:57,254 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-07 18:40:57,255 INFO L82 GeneralOperation]: Start isEquivalent. First operand 5 states. Second operand 5 states. [2019-01-07 18:40:57,256 INFO L74 IsIncluded]: Start isIncluded. First operand 5 states. Second operand 5 states. [2019-01-07 18:40:57,256 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 5 states. [2019-01-07 18:40:57,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 18:40:57,259 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-01-07 18:40:57,259 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-01-07 18:40:57,259 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-07 18:40:57,259 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-07 18:40:57,260 INFO L74 IsIncluded]: Start isIncluded. First operand 5 states. Second operand 5 states. [2019-01-07 18:40:57,261 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 5 states. [2019-01-07 18:40:57,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 18:40:57,262 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-01-07 18:40:57,262 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-01-07 18:40:57,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-07 18:40:57,264 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-07 18:40:57,264 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-07 18:40:57,264 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-07 18:40:57,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-07 18:40:57,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-01-07 18:40:57,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-01-07 18:40:57,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-07 18:40:57,270 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-01-07 18:40:57,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-07 18:40:57,271 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-01-07 18:40:57,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-07 18:40:57,271 INFO L394 BasicCegarLoop]: Found error trace [2019-01-07 18:40:57,271 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-07 18:40:57,273 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-01-07 18:40:57,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-07 18:40:57,273 INFO L82 PathProgramCache]: Analyzing trace with hash 927558, now seen corresponding path program 1 times [2019-01-07 18:40:57,273 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-07 18:40:57,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 18:40:57,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-07 18:40:57,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-07 18:40:57,275 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-07 18:40:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-07 18:40:57,900 WARN L181 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 7 [2019-01-07 18:40:57,938 INFO L273 TraceCheckUtils]: 0: Hoare triple {44#true} i := 0;assume j == i; {46#(= i 0)} is VALID [2019-01-07 18:40:57,940 INFO L273 TraceCheckUtils]: 1: Hoare triple {46#(= i 0)} assume i < n;a := a[i := 0];i := i + 1; {47#(and (<= i 1) (= 0 (select a 0)))} is VALID [2019-01-07 18:40:57,941 INFO L273 TraceCheckUtils]: 2: Hoare triple {47#(and (<= i 1) (= 0 (select a 0)))} assume !(i < n);assume 0 <= r && r < n; {48#(and (= r 0) (= 0 (select a r)))} is VALID [2019-01-07 18:40:57,943 INFO L273 TraceCheckUtils]: 3: Hoare triple {48#(and (= r 0) (= 0 (select a r)))} assume !(a[r] == 0); {45#false} is VALID [2019-01-07 18:40:57,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-07 18:40:57,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-07 18:40:57,944 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-07 18:40:57,945 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2019-01-07 18:40:57,947 INFO L207 CegarAbsIntRunner]: [0], [4], [6], [7] [2019-01-07 18:40:58,006 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2019-01-07 18:40:58,006 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-07 18:41:23,473 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-01-07 18:41:23,474 INFO L272 AbstractInterpreter]: Visited 4 different actions 15 times. Merged at 2 different actions 7 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-01-07 18:41:23,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-07 18:41:23,480 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-01-07 18:41:25,492 INFO L227 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 42.22% of their original sizes. [2019-01-07 18:41:25,597 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-01-07 18:41:27,923 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_idx_259 Int) (v_idx_261 Int) (v_idx_260 Int)) (exists ((v_v_374_1 Int) (v_v_376_1 Int) (v_b_28_1 Int)) (and (<= 0 (* 2 c_r)) (<= 1 v_b_28_1) (<= 0 c_r) (or (= (select c_a v_idx_259) v_v_374_1) (<= 0 v_idx_259)) (<= 1 (+ v_b_28_1 c_r)) (or (= (select c_a v_idx_260) 0) (<= v_b_28_1 v_idx_260) (< v_idx_260 0)) (<= 2 (* 2 v_b_28_1)) (or (< v_idx_261 v_b_28_1) (= (select c_a v_idx_261) v_v_376_1)) (<= (+ c_r 1) v_b_28_1)))) is different from false [2019-01-07 18:41:28,102 INFO L420 sIntCurrentIteration]: We unified 3 AI predicates to 3 [2019-01-07 18:41:28,358 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-01-07 18:41:28,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-07 18:41:28,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2019-01-07 18:41:28,360 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-07 18:41:28,363 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-07 18:41:28,363 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-07 18:41:28,363 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2019-01-07 18:41:28,422 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-07 18:41:28,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-07 18:41:28,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-07 18:41:28,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2019-01-07 18:41:28,423 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2019-01-07 18:41:32,766 WARN L214 ngHoareTripleChecker]: Soundness check failed for the following hoare triple [2019-01-07 18:41:32,767 WARN L217 ngHoareTripleChecker]: Expected: UNKNOWN Actual: INVALID [2019-01-07 18:41:32,768 WARN L219 ngHoareTripleChecker]: Solver was "Z3" in version "4.8.3" [2019-01-07 18:41:32,768 WARN L223 ngHoareTripleChecker]: -- [2019-01-07 18:41:32,769 WARN L224 ngHoareTripleChecker]: Pre: {91#(forall ((v_idx_311 Int) (v_idx_308 Int) (v_idx_309 Int) (v_idx_310 Int)) (exists ((v_v_746_1 Int) (v_v_374_1 Int) (v_v_376_1 Int)) (and (or (= v_v_376_1 (select c_a v_idx_310)) (< v_idx_310 c_i)) (or (= (select c_a v_idx_309) 0) (<= c_i v_idx_309) (< v_idx_309 0)) (<= 0 c_i) (= v_v_746_1 (select |c_old(a)| v_idx_311)) (<= 0 (* 2 c_i)) (<= (- (- c_i) c_i) 0) (or (<= 0 v_idx_308) (= v_v_374_1 (select c_a v_idx_308))))))} [2019-01-07 18:41:32,769 WARN L228 ngHoareTripleChecker]: Action: assume !(i < n);assume 0 <= r && r < n; [2019-01-07 18:41:32,770 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (< c_r c_n) (not (< c_i c_n)) (<= 0 c_r)) [2019-01-07 18:41:32,770 WARN L230 ngHoareTripleChecker]: Post: {92#false} [2019-01-07 18:41:32,770 WARN L263 ngHoareTripleChecker]: unsat core / model generation is disabled, enable it to get more details [2019-01-07 18:41:32,773 WARN L268 ngHoareTripleChecker]: -- [2019-01-07 18:41:32,773 WARN L269 ngHoareTripleChecker]: Simplified triple [2019-01-07 18:41:32,939 WARN L270 ngHoareTripleChecker]: Pre: {91#(and (<= 0 i) (forall ((v_idx_309 Int)) (or (= (select a v_idx_309) 0) (<= i v_idx_309) (< v_idx_309 0))) (<= 0 (* 2 i)) (<= (- (- i) i) 0))} [2019-01-07 18:41:32,939 WARN L274 ngHoareTripleChecker]: Action: assume !(i < n);assume 0 <= r && r < n; [2019-01-07 18:41:32,940 WARN L184 hOps$ForEachOp$OfRef]: ActionStr: (and (< c_r c_n) (not (< c_i c_n)) (<= 0 c_r)) [2019-01-07 18:41:32,945 WARN L276 ngHoareTripleChecker]: Post: {92#false} [2019-01-07 18:41:32,946 WARN L620 ntHoareTripleChecker]: -- [2019-01-07 18:41:32,946 WARN L621 ntHoareTripleChecker]: Abstract states [2019-01-07 18:41:32,946 WARN L623 ntHoareTripleChecker]: PreS: {#1{Arrays: {[a] -> [-inf_0] v_374 [b_27] v_375 [b_28] v_376 [inf_0], [old(a)] -> [-inf_0] v_746 [inf_0], }, Substate: {ints: {v_375 = [0; 0]; b_27 = [0; 0]; b_28 = [0; inf]; i = [0; inf]}, 10 vars top, relations: {b_27 + v_375 = [0; 0]; b_27 - v_375 = [0; 0]; b_28 + v_375 = [0; inf]; b_28 - v_375 = [0; inf]; i + v_375 = [0; inf]; i - v_375 = [0; inf]; b_27 + b_28 = [0; inf]; b_27 - b_28 = [-inf; 0]; b_27 + i = [0; inf]; b_27 - i = [-inf; 0]; b_28 + i = [0; inf]; b_28 - i = [0; 0]}, }}} [2019-01-07 18:41:32,946 WARN L628 ntHoareTripleChecker]: (and (< c_r c_n) (not (< c_i c_n)) (<= 0 c_r)) (assume !(i < n);assume 0 <= r && r < n;) [2019-01-07 18:41:32,947 WARN L629 ntHoareTripleChecker]: Post: {#1{Arrays: {}, Substate: false}} [2019-01-07 18:41:32,947 WARN L630 ntHoareTripleChecker]: -- [2019-01-07 18:41:34,999 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_idx_259 Int) (v_idx_261 Int) (v_idx_260 Int)) (exists ((v_v_374_1 Int) (v_v_376_1 Int) (v_b_28_1 Int)) (and (<= 0 (* 2 c_r)) (<= 1 v_b_28_1) (<= 0 c_r) (or (= (select c_a v_idx_259) v_v_374_1) (<= 0 v_idx_259)) (<= 1 (+ v_b_28_1 c_r)) (or (= (select c_a v_idx_260) 0) (<= v_b_28_1 v_idx_260) (< v_idx_260 0)) (<= 2 (* 2 v_b_28_1)) (or (< v_idx_261 v_b_28_1) (= (select c_a v_idx_261) v_v_376_1)) (<= (+ c_r 1) v_b_28_1)))) (forall ((v_idx_250 Int) (v_idx_251 Int) (v_idx_252 Int)) (exists ((v_v_374_1 Int) (v_v_376_1 Int)) (and (or (<= 0 v_idx_250) (= (select c_a v_idx_250) v_v_374_1)) (<= 0 c_i) (<= 0 (* 2 c_i)) (or (= (select c_a v_idx_252) v_v_376_1) (< v_idx_252 c_i)) (or (< v_idx_251 0) (<= c_i v_idx_251) (= (select c_a v_idx_251) 0)))))) is different from false [2019-01-07 18:41:37,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 18:41:37,106 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-01-07 18:41:37,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-07 18:41:37,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-07 18:41:37,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-07 18:41:37,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-07 18:41:37,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2019-01-07 18:41:37,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-07 18:41:37,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2019-01-07 18:41:37,108 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 4 transitions. [2019-01-07 18:41:37,140 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-07 18:41:37,140 INFO L225 Difference]: With dead ends: 5 [2019-01-07 18:41:37,141 INFO L226 Difference]: Without dead ends: 0 [2019-01-07 18:41:37,142 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=2, NotChecked=6, Total=20 [2019-01-07 18:41:37,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-07 18:41:37,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-07 18:41:37,143 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-07 18:41:37,143 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2019-01-07 18:41:37,143 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2019-01-07 18:41:37,143 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2019-01-07 18:41:37,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 18:41:37,144 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-01-07 18:41:37,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-07 18:41:37,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-07 18:41:37,144 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-07 18:41:37,144 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2019-01-07 18:41:37,144 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2019-01-07 18:41:37,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-07 18:41:37,144 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-01-07 18:41:37,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-07 18:41:37,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-07 18:41:37,145 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-07 18:41:37,145 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-07 18:41:37,145 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-07 18:41:37,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-07 18:41:37,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-07 18:41:37,145 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-01-07 18:41:37,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-07 18:41:37,146 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-07 18:41:37,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-07 18:41:37,146 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-07 18:41:37,146 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-07 18:41:37,150 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-07 18:41:37,185 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 23 35) no Hoare annotation was computed. [2019-01-07 18:41:37,185 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 23 35) no Hoare annotation was computed. [2019-01-07 18:41:37,185 INFO L444 ceAbstractionStarter]: At program point L29-1(lines 29 32) the Hoare annotation is: (forall ((v_idx_250 Int) (v_idx_251 Int) (v_idx_252 Int)) (exists ((v_v_374_1 Int) (v_v_376_1 Int)) (and (or (<= 0 v_idx_250) (= (select a v_idx_250) v_v_374_1)) (<= 0 i) (<= 0 (* 2 i)) (or (= (select a v_idx_252) v_v_376_1) (< v_idx_252 i)) (or (< v_idx_251 0) (<= i v_idx_251) (= (select a v_idx_251) 0))))) [2019-01-07 18:41:37,185 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 23 35) no Hoare annotation was computed. [2019-01-07 18:41:37,186 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 34) no Hoare annotation was computed. [2019-01-07 18:41:37,186 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-01-07 18:41:37,187 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2019-01-07 18:41:37,197 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2019-01-07 18:41:37,197 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2019-01-07 18:41:37,197 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2019-01-07 18:41:37,197 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2019-01-07 18:41:37,197 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2019-01-07 18:41:37,205 INFO L202 PluginConnector]: Adding new model ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 06:41:37 BoogieIcfgContainer [2019-01-07 18:41:37,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-07 18:41:37,206 INFO L168 Benchmark]: Toolchain (without parser) took 41100.78 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.2 GB). Free memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. [2019-01-07 18:41:37,208 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 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. [2019-01-07 18:41:37,209 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.11 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. [2019-01-07 18:41:37,209 INFO L168 Benchmark]: Boogie Preprocessor took 29.88 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. [2019-01-07 18:41:37,210 INFO L168 Benchmark]: RCFGBuilder took 323.06 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. [2019-01-07 18:41:37,211 INFO L168 Benchmark]: TraceAbstraction took 40697.98 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. [2019-01-07 18:41:37,215 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.23 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 45.11 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 29.88 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 323.06 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 40697.98 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 49.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 34]: 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: 29]: Loop Invariant Derived loop invariant: (forall v_idx_250 : int, v_idx_251 : int, v_idx_252 : int :: (exists v_v_374_1 : int, v_v_376_1 : int :: ((((0 <= v_idx_250 || a[v_idx_250] == v_v_374_1) && 0 <= i) && 0 <= 2 * i) && (a[v_idx_252] == v_v_376_1 || v_idx_252 < i)) && ((v_idx_251 < 0 || i <= v_idx_251) || a[v_idx_251] == 0))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 40.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 8.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 1 SDslu, 4 SDs, 0 SdLazy, 3 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 25.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.0 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 41 HoareAnnotationTreeSize, 1 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...