java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_oct_cong.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_4.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 17:44:56,204 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 17:44:56,206 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 17:44:56,224 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-03 17:44:56,273 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_oct_cong.epf [2018-12-03 17:44:56,300 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 17:44:56,300 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 17:44:56,301 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 17:44:56,301 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 17:44:56,301 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 17:44:56,301 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 17:44:56,302 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 17:44:56,302 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 17:44:56,302 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 17:44:56,302 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 17:44:56,302 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 17:44:56,303 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 17:44:56,303 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 17:44:56,303 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 17:44:56,304 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 17:44:56,304 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 17:44:56,304 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 17:44:56,304 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 17:44:56,304 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 17:44:56,304 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 17:44:56,305 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 17:44:56,305 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 17:44:56,305 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 17:44:56,305 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 17:44:56,305 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 17:44:56,306 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 17:44:56,306 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 17:44:56,306 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 17:44:56,306 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 17:44:56,306 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 17:44:56,307 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 17:44:56,307 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 17:44:56,307 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 17:44:56,307 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 17:44:56,307 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 17:44:56,308 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 17:44:56,308 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 17:44:56,308 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 17:44:56,308 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 17:44:56,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 17:44:56,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 17:44:56,355 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 17:44:56,356 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 17:44:56,357 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 17:44:56,358 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_4.i_2.bpl [2018-12-03 17:44:56,358 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_4.i_2.bpl' [2018-12-03 17:44:56,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 17:44:56,400 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 17:44:56,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 17:44:56,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 17:44:56,401 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 17:44:56,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:44:56" (1/1) ... [2018-12-03 17:44:56,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:44:56" (1/1) ... [2018-12-03 17:44:56,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 17:44:56,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 17:44:56,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 17:44:56,440 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 17:44:56,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:44:56" (1/1) ... [2018-12-03 17:44:56,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:44:56" (1/1) ... [2018-12-03 17:44:56,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:44:56" (1/1) ... [2018-12-03 17:44:56,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:44:56" (1/1) ... [2018-12-03 17:44:56,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:44:56" (1/1) ... [2018-12-03 17:44:56,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:44:56" (1/1) ... [2018-12-03 17:44:56,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:44:56" (1/1) ... [2018-12-03 17:44:56,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 17:44:56,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 17:44:56,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 17:44:56,463 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 17:44:56,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:44:56" (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 [2018-12-03 17:44:56,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 17:44:56,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 17:44:56,738 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 17:44:56,738 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 17:44:56,739 INFO L202 PluginConnector]: Adding new model jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:44:56 BoogieIcfgContainer [2018-12-03 17:44:56,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 17:44:56,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 17:44:56,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 17:44:56,744 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 17:44:56,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:44:56" (1/2) ... [2018-12-03 17:44:56,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3416f815 and model type jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:44:56, skipping insertion in model container [2018-12-03 17:44:56,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:44:56" (2/2) ... [2018-12-03 17:44:56,747 INFO L112 eAbstractionObserver]: Analyzing ICFG jain_4.i_2.bpl [2018-12-03 17:44:56,758 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 17:44:56,766 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 17:44:56,785 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 17:44:56,825 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 17:44:56,825 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 17:44:56,825 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 17:44:56,825 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 17:44:56,825 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 17:44:56,826 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 17:44:56,826 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 17:44:56,826 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 17:44:56,841 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-12-03 17:44:56,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-03 17:44:56,849 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 17:44:56,850 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-03 17:44:56,853 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 17:44:56,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:44:56,861 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2018-12-03 17:44:56,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 17:44:56,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:44:56,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 17:44:56,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:44:56,913 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 17:44:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 17:44:57,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 17:44:57,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 17:44:57,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 17:44:57,158 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 17:44:57,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 17:44:57,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 17:44:57,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 17:44:57,199 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2018-12-03 17:44:57,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 17:44:57,271 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-12-03 17:44:57,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 17:44:57,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-12-03 17:44:57,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 17:44:57,290 INFO L225 Difference]: With dead ends: 12 [2018-12-03 17:44:57,290 INFO L226 Difference]: Without dead ends: 8 [2018-12-03 17:44:57,294 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 17:44:57,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-12-03 17:44:57,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-12-03 17:44:57,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-03 17:44:57,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-12-03 17:44:57,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-12-03 17:44:57,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 17:44:57,335 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-12-03 17:44:57,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 17:44:57,335 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-12-03 17:44:57,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-03 17:44:57,336 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 17:44:57,336 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-12-03 17:44:57,336 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 17:44:57,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:44:57,337 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times [2018-12-03 17:44:57,337 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 17:44:57,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:44:57,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 17:44:57,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:44:57,339 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 17:44:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 17:44:57,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 17:44:57,558 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 17:44:57,558 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 17:44:57,559 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 7 with the following transitions: [2018-12-03 17:44:57,561 INFO L205 CegarAbsIntRunner]: [0], [2], [6], [8], [10] [2018-12-03 17:44:57,626 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-03 17:44:57,626 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 17:44:57,742 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-12-03 17:44:57,804 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 17:44:57,807 INFO L272 AbstractInterpreter]: Visited 4 different actions 5 times. Merged at 1 different actions 1 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-03 17:44:57,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:44:57,821 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 17:44:57,907 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 45% of their original sizes. [2018-12-03 17:44:57,908 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 17:44:58,004 INFO L418 sIntCurrentIteration]: We unified 5 AI predicates to 5 [2018-12-03 17:44:58,005 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 17:44:58,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 17:44:58,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2018-12-03 17:44:58,006 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 17:44:58,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 17:44:58,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 17:44:58,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 17:44:58,008 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2018-12-03 17:44:58,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 17:44:58,074 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-12-03 17:44:58,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 17:44:58,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2018-12-03 17:44:58,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 17:44:58,075 INFO L225 Difference]: With dead ends: 7 [2018-12-03 17:44:58,075 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 17:44:58,076 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 17:44:58,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 17:44:58,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 17:44:58,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 17:44:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 17:44:58,077 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-12-03 17:44:58,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 17:44:58,078 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 17:44:58,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 17:44:58,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 17:44:58,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 17:44:58,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 17:44:58,416 WARN L180 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2018-12-03 17:44:58,539 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 16 [2018-12-03 17:44:58,542 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 46) no Hoare annotation was computed. [2018-12-03 17:44:58,542 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 46) no Hoare annotation was computed. [2018-12-03 17:44:58,543 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 45) no Hoare annotation was computed. [2018-12-03 17:44:58,543 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 46) no Hoare annotation was computed. [2018-12-03 17:44:58,543 INFO L444 ceAbstractionStarter]: At program point L43(lines 43 44) the Hoare annotation is: false [2018-12-03 17:44:58,544 INFO L444 ceAbstractionStarter]: At program point L39(lines 21 39) the Hoare annotation is: (let ((.cse0 (= (mod ULTIMATE.start_main_~z~5 8) 0)) (.cse1 (= (mod ULTIMATE.start_main_~y~5 4) 0))) (or (and (= (mod ULTIMATE.start_main_~x~5 4) 0) .cse0 (= ULTIMATE.start___VERIFIER_assert_~cond 1) .cse1) (let ((.cse2 (+ ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~z~5 ULTIMATE.start_main_~x~5))) (and (<= 0 .cse2) .cse0 .cse1 (<= .cse2 0))))) [2018-12-03 17:44:58,544 INFO L444 ceAbstractionStarter]: At program point L34(lines 34 40) the Hoare annotation is: (and (= (mod ULTIMATE.start_main_~x~5 4) 0) (= (mod ULTIMATE.start_main_~z~5 8) 0) (= ULTIMATE.start___VERIFIER_assert_~cond 1) (= (mod ULTIMATE.start_main_~y~5 4) 0)) [2018-12-03 17:44:58,552 INFO L202 PluginConnector]: Adding new model jain_4.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 05:44:58 BoogieIcfgContainer [2018-12-03 17:44:58,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 17:44:58,553 INFO L168 Benchmark]: Toolchain (without parser) took 2154.39 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-12-03 17:44:58,554 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 17:44:58,555 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.61 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 17:44:58,556 INFO L168 Benchmark]: Boogie Preprocessor took 23.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 17:44:58,556 INFO L168 Benchmark]: RCFGBuilder took 276.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 17:44:58,557 INFO L168 Benchmark]: TraceAbstraction took 1811.98 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-12-03 17:44:58,562 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 38.61 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 23.19 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 276.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1811.98 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 45]: 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: 43]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (((main_~x~5 % 4 == 0 && main_~z~5 % 8 == 0) && __VERIFIER_assert_~cond == 1) && main_~y~5 % 4 == 0) || (((0 <= main_~y~5 + main_~z~5 + main_~x~5 && main_~z~5 % 8 == 0) && main_~y~5 % 4 == 0) && main_~y~5 + main_~z~5 + main_~x~5 <= 0) - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((main_~x~5 % 4 == 0 && main_~z~5 % 8 == 0) && __VERIFIER_assert_~cond == 1) && main_~y~5 % 4 == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 3 SDslu, 5 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 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, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9111111111111111 AbsIntWeakeningRatio, 0.8 AbsIntAvgWeakeningVarsNumRemoved, 3.4 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 4 NumberOfFragments, 63 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 321 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...