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/nonlinear/NonlinearInvariant1-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 16:01:13,490 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 16:01:13,495 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 16:01:13,508 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 16:01:13,508 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 16:01:13,509 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 16:01:13,511 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 16:01:13,513 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 16:01:13,514 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 16:01:13,515 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 16:01:13,516 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 16:01:13,517 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 16:01:13,518 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 16:01:13,519 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 16:01:13,520 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 16:01:13,521 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 16:01:13,522 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 16:01:13,524 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 16:01:13,526 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 16:01:13,528 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 16:01:13,529 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 16:01:13,530 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 16:01:13,533 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 16:01:13,533 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 16:01:13,533 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 16:01:13,534 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 16:01:13,535 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 16:01:13,536 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 16:01:13,537 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 16:01:13,538 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 16:01:13,538 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 16:01:13,539 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-12-03 16:01:13,542 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 16:01:13,555 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 16:01:13,555 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 16:01:13,556 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 16:01:13,557 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 16:01:13,557 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 16:01:13,557 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 16:01:13,557 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 16:01:13,557 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 16:01:13,558 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 16:01:13,558 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 16:01:13,558 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 16:01:13,558 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 16:01:13,558 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 16:01:13,559 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 16:01:13,559 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 16:01:13,559 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 16:01:13,560 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 16:01:13,560 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 16:01:13,560 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 16:01:13,560 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 16:01:13,561 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 16:01:13,561 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 16:01:13,561 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 16:01:13,561 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 16:01:13,561 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 16:01:13,562 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 16:01:13,562 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 16:01:13,562 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 16:01:13,562 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 16:01:13,562 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 16:01:13,563 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 16:01:13,563 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 16:01:13,563 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 16:01:13,563 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 16:01:13,563 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 16:01:13,564 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 16:01:13,564 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 16:01:13,564 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 16:01:13,564 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 16:01:13,564 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 16:01:13,564 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 16:01:13,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 16:01:13,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 16:01:13,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 16:01:13,625 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 16:01:13,625 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 16:01:13,626 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/NonlinearInvariant1-Safe.bpl [2018-12-03 16:01:13,627 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/NonlinearInvariant1-Safe.bpl' [2018-12-03 16:01:13,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 16:01:13,670 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 16:01:13,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 16:01:13,671 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 16:01:13,671 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 16:01:13,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:01:13" (1/1) ... [2018-12-03 16:01:13,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:01:13" (1/1) ... [2018-12-03 16:01:13,705 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-03 16:01:13,705 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-03 16:01:13,705 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-03 16:01:13,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 16:01:13,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 16:01:13,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 16:01:13,709 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 16:01:13,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:01:13" (1/1) ... [2018-12-03 16:01:13,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:01:13" (1/1) ... [2018-12-03 16:01:13,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:01:13" (1/1) ... [2018-12-03 16:01:13,723 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:01:13" (1/1) ... [2018-12-03 16:01:13,725 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:01:13" (1/1) ... [2018-12-03 16:01:13,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:01:13" (1/1) ... [2018-12-03 16:01:13,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:01:13" (1/1) ... [2018-12-03 16:01:13,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 16:01:13,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 16:01:13,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 16:01:13,733 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 16:01:13,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:01:13" (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 16:01:13,808 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-12-03 16:01:13,808 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 16:01:13,808 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 16:01:13,885 WARN L615 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-12-03 16:01:14,045 INFO L272 CfgBuilder]: Using library mode [2018-12-03 16:01:14,046 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 16:01:14,046 INFO L202 PluginConnector]: Adding new model NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:01:14 BoogieIcfgContainer [2018-12-03 16:01:14,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 16:01:14,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 16:01:14,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 16:01:14,051 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 16:01:14,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:01:13" (1/2) ... [2018-12-03 16:01:14,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2715ae4a and model type NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:01:14, skipping insertion in model container [2018-12-03 16:01:14,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:01:14" (2/2) ... [2018-12-03 16:01:14,055 INFO L112 eAbstractionObserver]: Analyzing ICFG NonlinearInvariant1-Safe.bpl [2018-12-03 16:01:14,065 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 16:01:14,073 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 16:01:14,091 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 16:01:14,127 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 16:01:14,127 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 16:01:14,127 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 16:01:14,127 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 16:01:14,128 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 16:01:14,128 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 16:01:14,128 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 16:01:14,128 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 16:01:14,144 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-12-03 16:01:14,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-03 16:01:14,150 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 16:01:14,151 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-03 16:01:14,154 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2018-12-03 16:01:14,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:01:14,161 INFO L82 PathProgramCache]: Analyzing trace with hash 925060, now seen corresponding path program 1 times [2018-12-03 16:01:14,163 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 16:01:14,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:01:14,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:01:14,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:01:14,215 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 16:01:14,234 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-03 16:01:14,234 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-03 16:01:14,234 INFO L169 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-03 16:01:14,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:01:14,250 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-12-03 16:01:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:01:14,282 INFO L193 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-12-03 16:01:14,284 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-03 16:01:14,284 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 16:01:14,284 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 16:01:14,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:01:14,295 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 16:01:14,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:01:14,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 16:01:14,506 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 16:01:14,507 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 16:01:14,525 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 16:01:14,545 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-12-03 16:01:14,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2018-12-03 16:01:14,545 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 16:01:14,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 16:01:14,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 16:01:14,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 16:01:14,564 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 5 states. [2018-12-03 16:01:14,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 16:01:14,764 INFO L93 Difference]: Finished difference Result 7 states and 9 transitions. [2018-12-03 16:01:14,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 16:01:14,765 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-12-03 16:01:14,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 16:01:14,774 INFO L225 Difference]: With dead ends: 7 [2018-12-03 16:01:14,775 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 16:01:14,778 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-03 16:01:14,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 16:01:14,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 16:01:14,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 16:01:14,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 16:01:14,807 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2018-12-03 16:01:14,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 16:01:14,808 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 16:01:14,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 16:01:14,808 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 16:01:14,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 16:01:14,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 16:01:14,856 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 15 37) no Hoare annotation was computed. [2018-12-03 16:01:14,857 INFO L444 ceAbstractionStarter]: At program point L29-1(lines 23 34) the Hoare annotation is: (and (> (* main_in2 main_in1) 0) (> (* main_tmp2 main_tmp1) 0)) [2018-12-03 16:01:14,857 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 15 37) no Hoare annotation was computed. [2018-12-03 16:01:14,858 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 33) no Hoare annotation was computed. [2018-12-03 16:01:14,858 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 15 37) no Hoare annotation was computed. [2018-12-03 16:01:14,858 INFO L448 ceAbstractionStarter]: For program point $Ultimate##0(lines 15 37) no Hoare annotation was computed. [2018-12-03 16:01:14,858 INFO L448 ceAbstractionStarter]: For program point mainErr0ENSURES_VIOLATIONPOST_CONDITION(lines 15 17) no Hoare annotation was computed. [2018-12-03 16:01:14,869 INFO L202 PluginConnector]: Adding new model NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 04:01:14 BoogieIcfgContainer [2018-12-03 16:01:14,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 16:01:14,870 INFO L168 Benchmark]: Toolchain (without parser) took 1201.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2018-12-03 16:01:14,872 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 16:01:14,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.48 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 16:01:14,874 INFO L168 Benchmark]: Boogie Preprocessor took 23.91 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 16:01:14,875 INFO L168 Benchmark]: RCFGBuilder took 313.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 16:01:14,875 INFO L168 Benchmark]: TraceAbstraction took 821.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. [2018-12-03 16:01:14,880 INFO L336 ainManager$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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.48 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 23.91 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 313.97 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 821.51 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: 44.9 MB). Peak memory consumption was 44.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: in2 * in1 > 0 && tmp2 * tmp1 > 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1 SDtfs, 6 SDslu, 2 SDs, 0 SdLazy, 12 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 11 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 4 NumberOfNonLiveVariables, 12 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...