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_compound_exp_cong.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Modulo-Ihringen.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 15:55:48,566 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 15:55:48,568 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 15:55:48,580 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 15:55:48,580 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 15:55:48,581 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 15:55:48,582 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 15:55:48,584 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 15:55:48,586 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 15:55:48,587 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 15:55:48,588 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 15:55:48,588 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 15:55:48,589 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 15:55:48,590 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 15:55:48,591 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 15:55:48,592 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 15:55:48,593 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 15:55:48,595 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 15:55:48,597 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 15:55:48,599 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 15:55:48,600 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 15:55:48,602 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 15:55:48,604 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 15:55:48,605 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 15:55:48,605 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 15:55:48,606 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 15:55:48,607 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 15:55:48,608 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 15:55:48,609 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 15:55:48,610 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 15:55:48,610 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 15:55:48,611 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-12-03 15:55:48,614 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2018-12-03 15:55:48,627 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 15:55:48,628 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 15:55:48,628 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 15:55:48,629 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 15:55:48,629 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 15:55:48,629 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 15:55:48,629 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 15:55:48,629 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 15:55:48,630 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 15:55:48,630 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 15:55:48,630 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 15:55:48,630 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 15:55:48,630 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 15:55:48,631 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 15:55:48,631 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 15:55:48,632 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 15:55:48,632 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 15:55:48,632 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 15:55:48,632 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 15:55:48,632 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 15:55:48,633 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 15:55:48,633 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 15:55:48,633 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 15:55:48,633 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 15:55:48,633 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 15:55:48,634 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 15:55:48,634 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 15:55:48,634 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 15:55:48,634 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 15:55:48,634 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 15:55:48,635 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 15:55:48,635 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 15:55:48,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 15:55:48,635 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 15:55:48,636 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 15:55:48,636 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 15:55:48,636 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 15:55:48,636 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 15:55:48,636 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 15:55:48,637 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 15:55:48,637 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 15:55:48,669 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 15:55:48,682 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 15:55:48,686 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 15:55:48,687 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 15:55:48,688 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 15:55:48,689 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Modulo-Ihringen.bpl [2018-12-03 15:55:48,689 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Modulo-Ihringen.bpl' [2018-12-03 15:55:48,724 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 15:55:48,726 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 15:55:48,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 15:55:48,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 15:55:48,730 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 15:55:48,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:55:48" (1/1) ... [2018-12-03 15:55:48,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:55:48" (1/1) ... [2018-12-03 15:55:48,766 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-03 15:55:48,766 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-03 15:55:48,766 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-03 15:55:48,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 15:55:48,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 15:55:48,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 15:55:48,770 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 15:55:48,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:55:48" (1/1) ... [2018-12-03 15:55:48,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:55:48" (1/1) ... [2018-12-03 15:55:48,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:55:48" (1/1) ... [2018-12-03 15:55:48,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:55:48" (1/1) ... [2018-12-03 15:55:48,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:55:48" (1/1) ... [2018-12-03 15:55:48,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:55:48" (1/1) ... [2018-12-03 15:55:48,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:55:48" (1/1) ... [2018-12-03 15:55:48,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 15:55:48,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 15:55:48,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 15:55:48,798 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 15:55:48,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:55:48" (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 15:55:48,858 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-12-03 15:55:48,858 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 15:55:48,858 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 15:55:49,027 INFO L272 CfgBuilder]: Using library mode [2018-12-03 15:55:49,027 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-03 15:55:49,028 INFO L202 PluginConnector]: Adding new model Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:55:49 BoogieIcfgContainer [2018-12-03 15:55:49,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 15:55:49,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 15:55:49,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 15:55:49,033 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 15:55:49,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:55:48" (1/2) ... [2018-12-03 15:55:49,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5354fca9 and model type Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:55:49, skipping insertion in model container [2018-12-03 15:55:49,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:55:49" (2/2) ... [2018-12-03 15:55:49,036 INFO L112 eAbstractionObserver]: Analyzing ICFG Modulo-Ihringen.bpl [2018-12-03 15:55:49,047 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 15:55:49,055 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 15:55:49,075 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 15:55:49,112 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 15:55:49,113 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 15:55:49,113 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 15:55:49,113 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 15:55:49,113 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 15:55:49,113 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 15:55:49,114 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 15:55:49,114 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 15:55:49,130 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-12-03 15:55:49,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-03 15:55:49,137 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:55:49,139 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-03 15:55:49,147 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 15:55:49,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:55:49,156 INFO L82 PathProgramCache]: Analyzing trace with hash 29956, now seen corresponding path program 1 times [2018-12-03 15:55:49,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:55:49,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:55:49,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:55:49,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:55:49,221 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:55:49,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:55:49,535 WARN L180 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2018-12-03 15:55:49,580 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 15:55:49,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 15:55:49,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 15:55:49,583 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 15:55:49,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 15:55:49,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 15:55:49,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 15:55:49,601 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-12-03 15:55:49,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:55:49,657 INFO L93 Difference]: Finished difference Result 6 states and 7 transitions. [2018-12-03 15:55:49,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 15:55:49,659 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-12-03 15:55:49,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:55:49,668 INFO L225 Difference]: With dead ends: 6 [2018-12-03 15:55:49,669 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 15:55:49,672 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 15:55:49,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 15:55:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 15:55:49,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 15:55:49,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 15:55:49,698 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2018-12-03 15:55:49,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:55:49,698 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 15:55:49,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 15:55:49,699 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 15:55:49,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 15:55:49,704 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 15:55:49,736 INFO L444 ceAbstractionStarter]: At program point L17loopEntry(lines 17 19) the Hoare annotation is: (and (<= main_x 8) (< 0 (div main_x 7))) [2018-12-03 15:55:49,737 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 27) no Hoare annotation was computed. [2018-12-03 15:55:49,737 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 11 29) no Hoare annotation was computed. [2018-12-03 15:55:49,737 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2018-12-03 15:55:49,737 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2018-12-03 15:55:49,737 INFO L444 ceAbstractionStarter]: At program point L23loopEntry(lines 23 25) the Hoare annotation is: (<= main_x 1) [2018-12-03 15:55:49,747 INFO L202 PluginConnector]: Adding new model Modulo-Ihringen.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:55:49 BoogieIcfgContainer [2018-12-03 15:55:49,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 15:55:49,748 INFO L168 Benchmark]: Toolchain (without parser) took 1023.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-12-03 15:55:49,749 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 15:55:49,750 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.58 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 15:55:49,751 INFO L168 Benchmark]: Boogie Preprocessor took 27.05 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 15:55:49,752 INFO L168 Benchmark]: RCFGBuilder took 230.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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 15:55:49,753 INFO L168 Benchmark]: TraceAbstraction took 717.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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 15:55:49,758 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 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.58 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.05 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 230.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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 717.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: 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: 17]: Loop Invariant Derived loop invariant: x <= 8 && 0 < x / 7 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: x <= 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 12 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...