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_camel.epf -i ../../../trunk/examples/programs/heapseparator/speedup-poc-dd-9-unlimited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-1ae3202 [2019-03-04 16:25:58,598 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-03-04 16:25:58,600 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-03-04 16:25:58,612 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-03-04 16:25:58,612 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-03-04 16:25:58,613 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-03-04 16:25:58,615 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-03-04 16:25:58,616 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-03-04 16:25:58,618 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-03-04 16:25:58,619 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-03-04 16:25:58,620 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-03-04 16:25:58,647 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_camel.epf [2019-03-04 16:25:58,659 INFO L110 SettingsManager]: Loading preferences was successful [2019-03-04 16:25:58,659 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-03-04 16:25:58,660 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-03-04 16:25:58,660 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-03-04 16:25:58,661 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-03-04 16:25:58,661 INFO L133 SettingsManager]: * User list type=DISABLED [2019-03-04 16:25:58,661 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-03-04 16:25:58,661 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-03-04 16:25:58,661 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-03-04 16:25:58,662 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-03-04 16:25:58,662 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2019-03-04 16:25:58,662 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-03-04 16:25:58,662 INFO L133 SettingsManager]: * Interval Domain=false [2019-03-04 16:25:58,663 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-03-04 16:25:58,663 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-03-04 16:25:58,663 INFO L133 SettingsManager]: * Use SBE=true [2019-03-04 16:25:58,663 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-03-04 16:25:58,664 INFO L133 SettingsManager]: * sizeof long=4 [2019-03-04 16:25:58,664 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-03-04 16:25:58,664 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-03-04 16:25:58,664 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-03-04 16:25:58,665 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-03-04 16:25:58,665 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-03-04 16:25:58,665 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-03-04 16:25:58,665 INFO L133 SettingsManager]: * sizeof long double=12 [2019-03-04 16:25:58,665 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-03-04 16:25:58,665 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-03-04 16:25:58,666 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-03-04 16:25:58,666 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-03-04 16:25:58,666 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-03-04 16:25:58,666 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-03-04 16:25:58,666 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-03-04 16:25:58,667 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-03-04 16:25:58,667 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-03-04 16:25:58,667 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-03-04 16:25:58,667 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-03-04 16:25:58,667 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-03-04 16:25:58,668 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-03-04 16:25:58,668 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-03-04 16:25:58,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-03-04 16:25:58,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-03-04 16:25:58,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-03-04 16:25:58,718 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-03-04 16:25:58,719 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-03-04 16:25:58,720 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-9-unlimited.bpl [2019-03-04 16:25:58,721 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-9-unlimited.bpl' [2019-03-04 16:25:58,766 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-03-04 16:25:58,768 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-03-04 16:25:58,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-03-04 16:25:58,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-03-04 16:25:58,769 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-03-04 16:25:58,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:58" (1/1) ... [2019-03-04 16:25:58,801 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:58" (1/1) ... [2019-03-04 16:25:58,839 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-03-04 16:25:58,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-03-04 16:25:58,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-03-04 16:25:58,840 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-03-04 16:25:58,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:58" (1/1) ... [2019-03-04 16:25:58,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:58" (1/1) ... [2019-03-04 16:25:58,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:58" (1/1) ... [2019-03-04 16:25:58,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:58" (1/1) ... [2019-03-04 16:25:58,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:58" (1/1) ... [2019-03-04 16:25:58,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:58" (1/1) ... [2019-03-04 16:25:58,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:58" (1/1) ... [2019-03-04 16:25:58,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-03-04 16:25:58,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-03-04 16:25:58,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-03-04 16:25:58,875 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-03-04 16:25:58,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:58" (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 [2019-03-04 16:25:58,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-03-04 16:25:58,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-03-04 16:25:59,409 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-03-04 16:25:59,409 INFO L286 CfgBuilder]: Removed 21 assue(true) statements. [2019-03-04 16:25:59,410 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:25:59 BoogieIcfgContainer [2019-03-04 16:25:59,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-03-04 16:25:59,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-03-04 16:25:59,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-03-04 16:25:59,415 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-03-04 16:25:59,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:58" (1/2) ... [2019-03-04 16:25:59,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2794e191 and model type speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 04:25:59, skipping insertion in model container [2019-03-04 16:25:59,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-9-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:25:59" (2/2) ... [2019-03-04 16:25:59,419 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-9-unlimited.bpl [2019-03-04 16:25:59,428 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-03-04 16:25:59,437 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2019-03-04 16:25:59,454 INFO L257 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2019-03-04 16:25:59,490 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-03-04 16:25:59,491 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-03-04 16:25:59,491 INFO L383 AbstractCegarLoop]: Hoare is true [2019-03-04 16:25:59,491 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-03-04 16:25:59,492 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-03-04 16:25:59,492 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-03-04 16:25:59,492 INFO L387 AbstractCegarLoop]: Difference is false [2019-03-04 16:25:59,492 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-03-04 16:25:59,492 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-03-04 16:25:59,512 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-03-04 16:25:59,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-03-04 16:25:59,525 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:25:59,527 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2019-03-04 16:25:59,529 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:25:59,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:25:59,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2019-03-04 16:25:59,541 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:25:59,541 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:25:59,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:59,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:59,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:59,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:25:59,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-03-04 16:25:59,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-03-04 16:25:59,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-03-04 16:25:59,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-03-04 16:25:59,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-03-04 16:25:59,796 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2019-03-04 16:26:00,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:26:00,048 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions. [2019-03-04 16:26:00,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-03-04 16:26:00,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-03-04 16:26:00,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:26:00,064 INFO L225 Difference]: With dead ends: 41 [2019-03-04 16:26:00,065 INFO L226 Difference]: Without dead ends: 36 [2019-03-04 16:26:00,068 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-03-04 16:26:00,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-03-04 16:26:00,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 20. [2019-03-04 16:26:00,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-03-04 16:26:00,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 37 transitions. [2019-03-04 16:26:00,119 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 37 transitions. Word has length 2 [2019-03-04 16:26:00,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:26:00,120 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 37 transitions. [2019-03-04 16:26:00,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-03-04 16:26:00,121 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 37 transitions. [2019-03-04 16:26:00,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:26:00,121 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:26:00,121 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:26:00,122 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:26:00,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:26:00,122 INFO L82 PathProgramCache]: Analyzing trace with hash 30388, now seen corresponding path program 1 times [2019-03-04 16:26:00,123 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:26:00,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:26:00,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:00,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:00,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:00,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:00,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:26:00,271 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:26:00,271 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:26:00,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:00,320 WARN L254 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 17 conjunts are in the unsatisfiable core [2019-03-04 16:26:00,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:26:00,417 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2019-03-04 16:26:00,474 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,476 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2019-03-04 16:26:00,523 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,545 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,565 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,567 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2019-03-04 16:26:00,620 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,647 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,650 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,655 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,657 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,667 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,669 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2019-03-04 16:26:00,719 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,727 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,728 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,730 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,734 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,738 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,740 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,742 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,746 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,747 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,749 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 41 [2019-03-04 16:26:00,764 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,765 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,766 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,770 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,772 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,774 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,776 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,780 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,782 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,784 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,788 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,789 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,791 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,793 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,795 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,799 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2019-03-04 16:26:00,816 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,817 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,819 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,822 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,823 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,828 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,830 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,831 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,832 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,834 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,838 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,840 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,842 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,844 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,846 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,848 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,850 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,852 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,877 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,880 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,882 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,884 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2019-03-04 16:26:00,924 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,928 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,936 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,940 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,942 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,943 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,946 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,948 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,952 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,953 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,955 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,956 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,980 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,982 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,984 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,988 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,989 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,990 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,991 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,992 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,994 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,996 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:00,998 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,000 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,002 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,038 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,067 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,076 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,077 INFO L301 Elim1Store]: Index analysis took 155 ms [2019-03-04 16:26:01,080 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2019-03-04 16:26:01,107 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,109 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,111 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,113 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,115 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,117 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,120 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,122 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,123 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,124 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,125 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,127 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,128 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,130 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,132 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,134 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,135 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,137 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,139 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,140 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,142 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,144 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,146 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,147 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,149 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,151 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,153 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,155 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:01,530 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 47 treesize of output 70 [2019-03-04 16:26:01,536 INFO L309 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:01,640 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:01,707 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:01,740 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:01,770 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:01,797 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:01,840 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:01,904 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:01,934 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:02,391 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2019-03-04 16:26:02,392 INFO L309 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:02,402 INFO L309 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:02,430 INFO L309 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:02,477 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:02,566 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:02,622 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:02,710 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:02,806 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:02,958 INFO L309 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2019-03-04 16:26:02,959 INFO L209 ElimStorePlain]: Needed 18 recursive calls to eliminate 9 variables, input treesize:150, output treesize:158 [2019-03-04 16:26:03,270 WARN L181 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-03-04 16:26:03,303 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 46 [2019-03-04 16:26:03,305 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:03,442 INFO L309 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2019-03-04 16:26:03,442 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:163, output treesize:127 [2019-03-04 16:26:03,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:26:03,496 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:26:03,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:26:03,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:26:03,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:26:03,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:26:03,498 INFO L87 Difference]: Start difference. First operand 20 states and 37 transitions. Second operand 6 states. [2019-03-04 16:26:15,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:26:15,409 INFO L93 Difference]: Finished difference Result 71 states and 104 transitions. [2019-03-04 16:26:15,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:26:15,410 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:26:15,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:26:15,412 INFO L225 Difference]: With dead ends: 71 [2019-03-04 16:26:15,412 INFO L226 Difference]: Without dead ends: 69 [2019-03-04 16:26:15,413 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-03-04 16:26:15,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2019-03-04 16:26:15,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 24. [2019-03-04 16:26:15,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-03-04 16:26:15,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 52 transitions. [2019-03-04 16:26:15,420 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 52 transitions. Word has length 3 [2019-03-04 16:26:15,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:26:15,420 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 52 transitions. [2019-03-04 16:26:15,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:26:15,420 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 52 transitions. [2019-03-04 16:26:15,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:26:15,421 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:26:15,421 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:26:15,421 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:26:15,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:26:15,422 INFO L82 PathProgramCache]: Analyzing trace with hash 30884, now seen corresponding path program 1 times [2019-03-04 16:26:15,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:26:15,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:26:15,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:15,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:15,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:15,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:26:15,538 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:26:15,538 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-03-04 16:26:15,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:15,553 WARN L254 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 17 conjunts are in the unsatisfiable core [2019-03-04 16:26:15,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:26:15,708 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2019-03-04 16:26:15,709 INFO L309 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:15,779 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:15,791 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:15,805 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:15,834 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:15,951 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:16,007 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:16,093 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:16,172 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2019-03-04 16:26:16,179 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 13 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2019-03-04 16:26:16,188 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 18 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2019-03-04 16:26:16,225 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 22 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2019-03-04 16:26:16,254 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 25 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 41 [2019-03-04 16:26:16,284 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 27 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2019-03-04 16:26:16,316 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2019-03-04 16:26:16,343 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2019-03-04 16:26:16,702 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 47 treesize of output 70 [2019-03-04 16:26:16,704 INFO L309 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:16,722 INFO L309 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:16,741 INFO L309 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:16,758 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:16,779 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:16,799 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:16,819 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:16,857 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:16,879 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:16,997 INFO L309 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2019-03-04 16:26:16,998 INFO L209 ElimStorePlain]: Needed 18 recursive calls to eliminate 9 variables, input treesize:150, output treesize:158 [2019-03-04 16:26:17,121 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 46 [2019-03-04 16:26:17,122 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:17,245 INFO L309 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2019-03-04 16:26:17,246 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:163, output treesize:127 [2019-03-04 16:26:17,302 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:26:17,322 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:26:17,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:26:17,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:26:17,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:26:17,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:26:17,323 INFO L87 Difference]: Start difference. First operand 24 states and 52 transitions. Second operand 6 states. [2019-03-04 16:26:28,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:26:28,465 INFO L93 Difference]: Finished difference Result 54 states and 87 transitions. [2019-03-04 16:26:28,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-03-04 16:26:28,466 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:26:28,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:26:28,468 INFO L225 Difference]: With dead ends: 54 [2019-03-04 16:26:28,468 INFO L226 Difference]: Without dead ends: 52 [2019-03-04 16:26:28,469 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:26:28,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-03-04 16:26:28,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 29. [2019-03-04 16:26:28,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-03-04 16:26:28,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 69 transitions. [2019-03-04 16:26:28,475 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 69 transitions. Word has length 3 [2019-03-04 16:26:28,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:26:28,475 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 69 transitions. [2019-03-04 16:26:28,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:26:28,476 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 69 transitions. [2019-03-04 16:26:28,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:26:28,476 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:26:28,476 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:26:28,477 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:26:28,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:26:28,477 INFO L82 PathProgramCache]: Analyzing trace with hash 30946, now seen corresponding path program 1 times [2019-03-04 16:26:28,477 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:26:28,477 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:26:28,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:28,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:28,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:28,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:26:28,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:26:28,649 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:26:28,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:28,663 WARN L254 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 17 conjunts are in the unsatisfiable core [2019-03-04 16:26:28,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:26:28,674 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 33 [2019-03-04 16:26:28,698 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,699 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2019-03-04 16:26:28,713 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,715 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,718 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,719 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2019-03-04 16:26:28,724 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,725 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,726 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,728 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,729 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,731 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,733 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2019-03-04 16:26:28,746 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,747 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,749 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,750 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,751 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,753 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,754 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,756 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,757 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,759 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,761 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 41 [2019-03-04 16:26:28,772 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,773 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,774 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,775 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,777 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,778 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,779 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,781 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,807 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,820 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,821 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,822 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,823 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,823 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,824 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,827 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 43 [2019-03-04 16:26:28,880 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,900 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,902 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,903 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,903 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,905 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,906 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,907 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,909 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,910 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,912 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,913 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,915 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,916 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,922 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,923 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,924 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,925 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,926 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,930 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,931 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,933 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2019-03-04 16:26:28,940 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,941 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,942 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,943 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,945 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,946 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,948 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,949 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,951 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,952 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,953 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,955 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,956 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,958 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,959 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,964 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,965 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,966 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,967 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,968 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,969 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,971 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,972 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,974 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,975 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,976 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,978 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,979 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,981 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 47 [2019-03-04 16:26:28,987 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,989 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,990 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,992 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,993 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,995 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,996 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,998 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:28,999 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,001 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,002 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,004 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,005 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,006 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,008 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,009 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,011 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,012 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,014 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,015 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,016 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,018 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,019 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,021 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,022 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,024 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,025 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,026 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:29,091 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 47 treesize of output 70 [2019-03-04 16:26:29,093 INFO L309 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,112 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,131 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,155 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,174 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,194 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,217 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,239 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,259 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,404 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2019-03-04 16:26:29,404 INFO L309 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,414 INFO L309 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,425 INFO L309 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,447 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,483 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,538 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,602 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,667 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:29,773 INFO L309 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 2 dim-1 vars, End of recursive call: 7 dim-0 vars, and 1 xjuncts. [2019-03-04 16:26:29,774 INFO L209 ElimStorePlain]: Needed 18 recursive calls to eliminate 9 variables, input treesize:150, output treesize:158 [2019-03-04 16:26:29,972 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 24 case distinctions, treesize of input 56 treesize of output 107 [2019-03-04 16:26:29,973 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2019-03-04 16:26:30,068 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 256 xjuncts. [2019-03-04 16:26:32,900 INFO L309 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 1 dim-1 vars, End of recursive call: 64 dim-0 vars, and 9 xjuncts. [2019-03-04 16:26:32,901 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 9 variables, input treesize:168, output treesize:1383 [2019-03-04 16:26:45,436 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-03-04 16:26:45,637 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:26:45,639 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:152) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:581) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 45 more [2019-03-04 16:26:45,645 INFO L168 Benchmark]: Toolchain (without parser) took 46878.18 ms. Allocated memory was 136.8 MB in the beginning and 331.4 MB in the end (delta: 194.5 MB). Free memory was 107.6 MB in the beginning and 73.8 MB in the end (delta: 33.8 MB). Peak memory consumption was 228.3 MB. Max. memory is 7.1 GB. [2019-03-04 16:26:45,647 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.93 ms. Allocated memory is still 136.8 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-03-04 16:26:45,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.03 ms. Allocated memory is still 136.8 MB. Free memory was 107.4 MB in the beginning and 105.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2019-03-04 16:26:45,648 INFO L168 Benchmark]: Boogie Preprocessor took 34.20 ms. Allocated memory is still 136.8 MB. Free memory was 105.0 MB in the beginning and 103.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-03-04 16:26:45,649 INFO L168 Benchmark]: RCFGBuilder took 535.94 ms. Allocated memory is still 136.8 MB. Free memory was 103.7 MB in the beginning and 90.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2019-03-04 16:26:45,649 INFO L168 Benchmark]: TraceAbstraction took 46231.56 ms. Allocated memory was 136.8 MB in the beginning and 331.4 MB in the end (delta: 194.5 MB). Free memory was 89.8 MB in the beginning and 73.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 210.5 MB. Max. memory is 7.1 GB. [2019-03-04 16:26:45,654 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 0.93 ms. Allocated memory is still 136.8 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.03 ms. Allocated memory is still 136.8 MB. Free memory was 107.4 MB in the beginning and 105.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.20 ms. Allocated memory is still 136.8 MB. Free memory was 105.0 MB in the beginning and 103.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 535.94 ms. Allocated memory is still 136.8 MB. Free memory was 103.7 MB in the beginning and 90.0 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 46231.56 ms. Allocated memory was 136.8 MB in the beginning and 331.4 MB in the end (delta: 194.5 MB). Free memory was 89.8 MB in the beginning and 73.8 MB in the end (delta: 16.0 MB). Peak memory consumption was 210.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...