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-8-unlimited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-1ae3202 [2019-03-04 16:25:35,030 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-03-04 16:25:35,032 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-03-04 16:25:35,043 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-03-04 16:25:35,043 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-03-04 16:25:35,044 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-03-04 16:25:35,045 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-03-04 16:25:35,047 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-03-04 16:25:35,049 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-03-04 16:25:35,050 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-03-04 16:25:35,051 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-03-04 16:25:35,080 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 16:25:35,100 INFO L110 SettingsManager]: Loading preferences was successful [2019-03-04 16:25:35,100 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-03-04 16:25:35,102 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-03-04 16:25:35,102 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-03-04 16:25:35,102 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-03-04 16:25:35,102 INFO L133 SettingsManager]: * User list type=DISABLED [2019-03-04 16:25:35,103 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-03-04 16:25:35,103 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-03-04 16:25:35,103 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-03-04 16:25:35,104 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-03-04 16:25:35,104 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2019-03-04 16:25:35,104 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-03-04 16:25:35,104 INFO L133 SettingsManager]: * Interval Domain=false [2019-03-04 16:25:35,105 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-03-04 16:25:35,105 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-03-04 16:25:35,105 INFO L133 SettingsManager]: * Use SBE=true [2019-03-04 16:25:35,105 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-03-04 16:25:35,107 INFO L133 SettingsManager]: * sizeof long=4 [2019-03-04 16:25:35,107 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-03-04 16:25:35,108 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-03-04 16:25:35,108 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-03-04 16:25:35,108 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-03-04 16:25:35,108 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-03-04 16:25:35,108 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-03-04 16:25:35,109 INFO L133 SettingsManager]: * sizeof long double=12 [2019-03-04 16:25:35,109 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-03-04 16:25:35,109 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-03-04 16:25:35,109 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-03-04 16:25:35,110 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-03-04 16:25:35,110 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-03-04 16:25:35,110 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-03-04 16:25:35,110 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-03-04 16:25:35,110 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-03-04 16:25:35,111 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-03-04 16:25:35,111 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-03-04 16:25:35,111 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-03-04 16:25:35,111 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-03-04 16:25:35,111 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-03-04 16:25:35,112 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-03-04 16:25:35,157 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-03-04 16:25:35,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-03-04 16:25:35,177 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-03-04 16:25:35,178 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-03-04 16:25:35,179 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-03-04 16:25:35,180 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-8-unlimited.bpl [2019-03-04 16:25:35,180 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-8-unlimited.bpl' [2019-03-04 16:25:35,228 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-03-04 16:25:35,230 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-03-04 16:25:35,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-03-04 16:25:35,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-03-04 16:25:35,231 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-03-04 16:25:35,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:35" (1/1) ... [2019-03-04 16:25:35,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:35" (1/1) ... [2019-03-04 16:25:35,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-03-04 16:25:35,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-03-04 16:25:35,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-03-04 16:25:35,286 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-03-04 16:25:35,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:35" (1/1) ... [2019-03-04 16:25:35,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:35" (1/1) ... [2019-03-04 16:25:35,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:35" (1/1) ... [2019-03-04 16:25:35,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:35" (1/1) ... [2019-03-04 16:25:35,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:35" (1/1) ... [2019-03-04 16:25:35,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:35" (1/1) ... [2019-03-04 16:25:35,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:35" (1/1) ... [2019-03-04 16:25:35,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-03-04 16:25:35,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-03-04 16:25:35,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-03-04 16:25:35,311 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-03-04 16:25:35,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:35" (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 16:25:35,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-03-04 16:25:35,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-03-04 16:25:35,881 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-03-04 16:25:35,882 INFO L286 CfgBuilder]: Removed 19 assue(true) statements. [2019-03-04 16:25:35,884 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:25:35 BoogieIcfgContainer [2019-03-04 16:25:35,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-03-04 16:25:35,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-03-04 16:25:35,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-03-04 16:25:35,892 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-03-04 16:25:35,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:25:35" (1/2) ... [2019-03-04 16:25:35,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7266f28c and model type speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 04:25:35, skipping insertion in model container [2019-03-04 16:25:35,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-8-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:25:35" (2/2) ... [2019-03-04 16:25:35,896 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-8-unlimited.bpl [2019-03-04 16:25:35,904 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-03-04 16:25:35,916 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-03-04 16:25:35,932 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-03-04 16:25:35,963 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-03-04 16:25:35,963 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-03-04 16:25:35,963 INFO L383 AbstractCegarLoop]: Hoare is true [2019-03-04 16:25:35,964 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-03-04 16:25:35,964 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-03-04 16:25:35,964 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-03-04 16:25:35,964 INFO L387 AbstractCegarLoop]: Difference is false [2019-03-04 16:25:35,964 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-03-04 16:25:35,964 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-03-04 16:25:35,977 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-03-04 16:25:35,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-03-04 16:25:35,983 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:25:35,984 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2019-03-04 16:25:35,987 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:25:35,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:25:35,992 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-03-04 16:25:35,993 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:25:35,993 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:25:36,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:36,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:36,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:36,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:36,194 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 16:25:36,196 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-03-04 16:25:36,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-03-04 16:25:36,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-03-04 16:25:36,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-03-04 16:25:36,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-03-04 16:25:36,218 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2019-03-04 16:25:36,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:25:36,454 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2019-03-04 16:25:36,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-03-04 16:25:36,457 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-03-04 16:25:36,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:25:36,477 INFO L225 Difference]: With dead ends: 37 [2019-03-04 16:25:36,478 INFO L226 Difference]: Without dead ends: 32 [2019-03-04 16:25:36,481 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 16:25:36,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-03-04 16:25:36,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 18. [2019-03-04 16:25:36,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-03-04 16:25:36,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 33 transitions. [2019-03-04 16:25:36,515 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 33 transitions. Word has length 2 [2019-03-04 16:25:36,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:25:36,517 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 33 transitions. [2019-03-04 16:25:36,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-03-04 16:25:36,517 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 33 transitions. [2019-03-04 16:25:36,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:25:36,518 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:25:36,518 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:25:36,523 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:25:36,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:25:36,524 INFO L82 PathProgramCache]: Analyzing trace with hash 30818, now seen corresponding path program 1 times [2019-03-04 16:25:36,524 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:25:36,524 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:25:36,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:36,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:36,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:36,824 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 16:25:36,824 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:25:36,824 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 16:25:36,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:36,853 WARN L254 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 20 conjunts are in the unsatisfiable core [2019-03-04 16:25:36,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:25:36,964 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 27 treesize of output 30 [2019-03-04 16:25:37,018 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,020 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 30 treesize of output 32 [2019-03-04 16:25:37,051 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,076 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,085 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,090 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 32 treesize of output 34 [2019-03-04 16:25:37,111 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,121 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,122 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,124 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,126 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,137 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,139 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 34 treesize of output 36 [2019-03-04 16:25:37,152 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,154 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,157 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,158 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,160 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,164 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,173 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,178 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,183 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,217 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,220 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 36 treesize of output 38 [2019-03-04 16:25:37,274 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,295 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,321 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,346 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,371 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,383 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,388 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,390 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,392 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,394 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,395 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,396 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,398 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,399 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,401 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,402 INFO L301 Elim1Store]: Index analysis took 144 ms [2019-03-04 16:25:37,408 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 38 treesize of output 40 [2019-03-04 16:25:37,434 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,435 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,436 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,438 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,440 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,442 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,444 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,446 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,449 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,451 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,459 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,461 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,462 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,464 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,466 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,467 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,469 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,471 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,490 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,512 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,538 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,538 INFO L301 Elim1Store]: Index analysis took 105 ms [2019-03-04 16:25:37,541 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 40 treesize of output 42 [2019-03-04 16:25:37,594 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,608 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,614 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,616 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,618 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,624 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,625 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,626 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,630 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,631 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,632 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,635 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,636 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,640 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,641 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,642 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,644 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,646 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,647 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,649 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,652 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,653 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,658 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,659 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,660 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,661 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,663 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,665 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:37,668 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 41 [2019-03-04 16:25:37,669 INFO L309 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:37,802 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:37,827 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:37,849 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:37,872 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:37,924 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:38,011 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:38,210 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:38,548 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 16:25:38,551 INFO L309 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:38,571 INFO L309 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:38,598 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:38,683 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:38,731 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:38,811 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:38,896 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:38,993 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:39,127 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-03-04 16:25:39,128 INFO L209 ElimStorePlain]: Needed 17 recursive calls to eliminate 8 variables, input treesize:147, output treesize:153 [2019-03-04 16:25:39,201 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 16:25:39,202 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:39,432 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 16:25:39,433 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:163, output treesize:127 [2019-03-04 16:25:39,475 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 16:25:39,497 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:25:39,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:25:39,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:25:39,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:25:39,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:25:39,499 INFO L87 Difference]: Start difference. First operand 18 states and 33 transitions. Second operand 6 states. [2019-03-04 16:25:50,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:25:50,687 INFO L93 Difference]: Finished difference Result 63 states and 92 transitions. [2019-03-04 16:25:50,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:25:50,688 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:25:50,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:25:50,690 INFO L225 Difference]: With dead ends: 63 [2019-03-04 16:25:50,690 INFO L226 Difference]: Without dead ends: 60 [2019-03-04 16:25:50,691 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-03-04 16:25:50,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-03-04 16:25:50,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 25. [2019-03-04 16:25:50,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-03-04 16:25:50,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 53 transitions. [2019-03-04 16:25:50,699 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 53 transitions. Word has length 3 [2019-03-04 16:25:50,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:25:50,700 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 53 transitions. [2019-03-04 16:25:50,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:25:50,700 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 53 transitions. [2019-03-04 16:25:50,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:25:50,701 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:25:50,701 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:25:50,701 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:25:50,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:25:50,702 INFO L82 PathProgramCache]: Analyzing trace with hash 30384, now seen corresponding path program 1 times [2019-03-04 16:25:50,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:25:50,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:25:50,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:50,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:50,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:50,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:50,790 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 16:25:50,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:25:50,790 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 16:25:50,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:50,806 WARN L254 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 15 conjunts are in the unsatisfiable core [2019-03-04 16:25:50,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:25:50,816 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 27 treesize of output 30 [2019-03-04 16:25:50,822 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,824 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 30 treesize of output 32 [2019-03-04 16:25:50,848 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,850 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,853 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,855 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 32 treesize of output 34 [2019-03-04 16:25:50,872 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,874 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,876 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,878 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,880 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,882 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,883 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 34 treesize of output 36 [2019-03-04 16:25:50,894 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,896 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,899 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,901 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,903 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,906 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,907 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,907 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,908 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,909 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,910 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 36 treesize of output 38 [2019-03-04 16:25:50,957 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,958 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,962 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,966 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,967 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,968 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,969 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,969 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,971 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,972 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,973 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,975 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,976 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,985 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,986 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:50,987 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 38 treesize of output 40 [2019-03-04 16:25:51,023 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,036 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,037 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,039 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,041 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,043 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,044 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,045 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,047 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,048 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,049 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,051 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,052 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,053 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,055 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,056 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,057 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,058 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,060 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,061 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,062 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,064 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 40 treesize of output 42 [2019-03-04 16:25:51,072 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,073 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,074 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,075 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,075 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,077 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,078 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,079 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,081 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,082 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,083 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,085 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,086 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,087 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,089 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,090 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,091 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,093 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,094 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,095 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,096 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:51,191 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 42 treesize of output 62 [2019-03-04 16:25:51,193 INFO L309 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,240 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,261 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,279 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,295 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,315 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,333 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,352 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,467 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2019-03-04 16:25:51,468 INFO L309 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,515 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,562 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,579 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,605 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,638 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,721 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,797 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-03-04 16:25:51,797 INFO L209 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:121, output treesize:125 [2019-03-04 16:25:51,889 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 41 [2019-03-04 16:25:51,889 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:51,960 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-03-04 16:25:51,961 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:130, output treesize:98 [2019-03-04 16:25:52,087 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 16:25:52,118 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:25:52,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:25:52,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:25:52,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:25:52,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:25:52,119 INFO L87 Difference]: Start difference. First operand 25 states and 53 transitions. Second operand 6 states. [2019-03-04 16:25:52,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:25:52,949 INFO L93 Difference]: Finished difference Result 62 states and 99 transitions. [2019-03-04 16:25:52,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:25:52,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:25:52,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:25:52,952 INFO L225 Difference]: With dead ends: 62 [2019-03-04 16:25:52,952 INFO L226 Difference]: Without dead ends: 60 [2019-03-04 16:25:52,953 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-03-04 16:25:52,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-03-04 16:25:52,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 26. [2019-03-04 16:25:52,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-03-04 16:25:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 61 transitions. [2019-03-04 16:25:52,960 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 61 transitions. Word has length 3 [2019-03-04 16:25:52,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:25:52,960 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 61 transitions. [2019-03-04 16:25:52,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:25:52,960 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 61 transitions. [2019-03-04 16:25:52,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:25:52,961 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:25:52,961 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:25:52,961 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:25:52,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:25:52,962 INFO L82 PathProgramCache]: Analyzing trace with hash 30944, now seen corresponding path program 1 times [2019-03-04 16:25:52,962 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:25:52,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:25:52,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:52,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:52,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:53,034 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 16:25:53,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-03-04 16:25:53,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-03-04 16:25:53,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-03-04 16:25:53,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-03-04 16:25:53,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-03-04 16:25:53,036 INFO L87 Difference]: Start difference. First operand 26 states and 61 transitions. Second operand 3 states. [2019-03-04 16:25:53,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:25:53,387 INFO L93 Difference]: Finished difference Result 31 states and 61 transitions. [2019-03-04 16:25:53,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-03-04 16:25:53,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-03-04 16:25:53,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:25:53,388 INFO L225 Difference]: With dead ends: 31 [2019-03-04 16:25:53,389 INFO L226 Difference]: Without dead ends: 30 [2019-03-04 16:25:53,389 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 16:25:53,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-03-04 16:25:53,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 26. [2019-03-04 16:25:53,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-03-04 16:25:53,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 60 transitions. [2019-03-04 16:25:53,396 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 60 transitions. Word has length 3 [2019-03-04 16:25:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:25:53,396 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 60 transitions. [2019-03-04 16:25:53,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-03-04 16:25:53,397 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 60 transitions. [2019-03-04 16:25:53,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:25:53,397 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:25:53,397 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:25:53,398 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:25:53,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:25:53,398 INFO L82 PathProgramCache]: Analyzing trace with hash 30012, now seen corresponding path program 1 times [2019-03-04 16:25:53,398 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:25:53,398 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:25:53,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:53,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:53,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:53,454 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 16:25:53,455 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:25:53,455 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 16:25:53,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:53,486 WARN L254 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 15 conjunts are in the unsatisfiable core [2019-03-04 16:25:53,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:25:53,521 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 27 treesize of output 30 [2019-03-04 16:25:53,544 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,545 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 30 treesize of output 32 [2019-03-04 16:25:53,559 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,561 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,563 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,564 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 32 treesize of output 34 [2019-03-04 16:25:53,571 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,573 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,576 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,578 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,580 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,582 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,583 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 34 treesize of output 36 [2019-03-04 16:25:53,588 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,590 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,591 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,592 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,594 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,595 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,597 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,598 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,600 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,601 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,604 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 36 treesize of output 38 [2019-03-04 16:25:53,618 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,619 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,620 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,624 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,625 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,625 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,626 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,627 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,628 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,629 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,630 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,632 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,633 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,634 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,636 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,638 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 38 treesize of output 40 [2019-03-04 16:25:53,648 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,649 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,650 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,651 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,651 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,653 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,654 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,655 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,657 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,658 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,659 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,661 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,662 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,663 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,665 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,666 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,667 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,669 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,670 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,671 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,673 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,675 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 40 treesize of output 42 [2019-03-04 16:25:53,686 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,688 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,689 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,690 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,692 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,693 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,694 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,696 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,697 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,698 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,700 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,701 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,702 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,704 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,705 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,706 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,708 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,709 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,710 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,712 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,713 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,766 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 42 treesize of output 62 [2019-03-04 16:25:53,768 INFO L309 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:53,786 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:53,806 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:53,829 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:53,848 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:53,868 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:53,887 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:53,906 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,027 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2019-03-04 16:25:54,028 INFO L309 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,088 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,097 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,109 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,127 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,159 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,201 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,282 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 16:25:54,283 INFO L209 ElimStorePlain]: Needed 16 recursive calls to eliminate 9 variables, input treesize:121, output treesize:125 [2019-03-04 16:25:54,331 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 41 [2019-03-04 16:25:54,332 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,397 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-03-04 16:25:54,398 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:130, output treesize:96 [2019-03-04 16:25:54,411 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 16:25:54,430 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:25:54,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:25:54,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:25:54,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:25:54,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:25:54,431 INFO L87 Difference]: Start difference. First operand 26 states and 60 transitions. Second operand 6 states. [2019-03-04 16:25:54,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:25:54,644 INFO L93 Difference]: Finished difference Result 47 states and 93 transitions. [2019-03-04 16:25:54,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:25:54,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:25:54,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:25:54,646 INFO L225 Difference]: With dead ends: 47 [2019-03-04 16:25:54,647 INFO L226 Difference]: Without dead ends: 46 [2019-03-04 16:25:54,647 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:25:54,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-03-04 16:25:54,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 28. [2019-03-04 16:25:54,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-03-04 16:25:54,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 78 transitions. [2019-03-04 16:25:54,655 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 78 transitions. Word has length 3 [2019-03-04 16:25:54,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:25:54,655 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 78 transitions. [2019-03-04 16:25:54,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:25:54,655 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 78 transitions. [2019-03-04 16:25:54,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:25:54,656 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:25:54,656 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:25:54,657 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:25:54,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:25:54,657 INFO L82 PathProgramCache]: Analyzing trace with hash 30136, now seen corresponding path program 1 times [2019-03-04 16:25:54,657 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:25:54,657 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:25:54,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:54,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:54,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:54,733 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 16:25:54,734 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:25:54,734 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:25:54,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:54,749 WARN L254 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 15 conjunts are in the unsatisfiable core [2019-03-04 16:25:54,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:25:54,826 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2019-03-04 16:25:54,826 INFO L309 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,834 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,847 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,882 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,925 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:54,982 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:55,031 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:55,104 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2019-03-04 16:25:55,110 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2019-03-04 16:25:55,115 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 15 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2019-03-04 16:25:55,122 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2019-03-04 16:25:55,144 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 20 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2019-03-04 16:25:55,157 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2019-03-04 16:25:55,168 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 40 treesize of output 42 [2019-03-04 16:25:55,244 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 42 treesize of output 62 [2019-03-04 16:25:55,246 INFO L309 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:55,271 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:55,287 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:55,304 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:55,321 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:55,338 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:55,354 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:55,373 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:55,451 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-03-04 16:25:55,451 INFO L209 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:121, output treesize:125 [2019-03-04 16:25:55,503 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 41 [2019-03-04 16:25:55,504 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:55,576 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-03-04 16:25:55,577 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:130, output treesize:98 [2019-03-04 16:25:55,603 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 16:25:55,631 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:25:55,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:25:55,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:25:55,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:25:55,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:25:55,632 INFO L87 Difference]: Start difference. First operand 28 states and 78 transitions. Second operand 6 states. [2019-03-04 16:25:56,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:25:56,493 INFO L93 Difference]: Finished difference Result 63 states and 124 transitions. [2019-03-04 16:25:56,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:25:56,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:25:56,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:25:56,495 INFO L225 Difference]: With dead ends: 63 [2019-03-04 16:25:56,495 INFO L226 Difference]: Without dead ends: 62 [2019-03-04 16:25:56,496 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-03-04 16:25:56,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-03-04 16:25:56,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 29. [2019-03-04 16:25:56,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-03-04 16:25:56,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 87 transitions. [2019-03-04 16:25:56,503 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 87 transitions. Word has length 3 [2019-03-04 16:25:56,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:25:56,504 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 87 transitions. [2019-03-04 16:25:56,504 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:25:56,504 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 87 transitions. [2019-03-04 16:25:56,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:25:56,504 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:25:56,504 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:25:56,505 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:25:56,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:25:56,505 INFO L82 PathProgramCache]: Analyzing trace with hash 30632, now seen corresponding path program 1 times [2019-03-04 16:25:56,505 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:25:56,505 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:25:56,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:56,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:56,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:56,584 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 16:25:56,585 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:25:56,585 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:25:56,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:56,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:56,601 WARN L254 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 15 conjunts are in the unsatisfiable core [2019-03-04 16:25:56,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:25:56,664 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2019-03-04 16:25:56,665 INFO L309 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:56,672 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:56,688 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:56,709 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:56,732 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:56,870 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:56,916 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:56,982 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 30 [2019-03-04 16:25:56,986 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2019-03-04 16:25:56,990 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 15 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2019-03-04 16:25:56,997 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2019-03-04 16:25:57,003 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 20 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2019-03-04 16:25:57,009 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 21 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2019-03-04 16:25:57,016 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 40 treesize of output 42 [2019-03-04 16:25:57,072 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 42 treesize of output 62 [2019-03-04 16:25:57,073 INFO L309 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:57,087 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:57,103 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:57,120 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:57,136 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:57,153 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:57,170 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:57,191 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:57,262 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-03-04 16:25:57,262 INFO L209 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:121, output treesize:125 [2019-03-04 16:25:57,389 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 41 [2019-03-04 16:25:57,391 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:57,472 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-03-04 16:25:57,472 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:130, output treesize:98 [2019-03-04 16:25:57,508 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 16:25:57,528 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:25:57,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:25:57,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:25:57,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:25:57,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:25:57,529 INFO L87 Difference]: Start difference. First operand 29 states and 87 transitions. Second operand 6 states. [2019-03-04 16:25:58,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:25:58,391 INFO L93 Difference]: Finished difference Result 64 states and 133 transitions. [2019-03-04 16:25:58,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:25:58,392 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:25:58,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:25:58,393 INFO L225 Difference]: With dead ends: 64 [2019-03-04 16:25:58,393 INFO L226 Difference]: Without dead ends: 62 [2019-03-04 16:25:58,394 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-03-04 16:25:58,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2019-03-04 16:25:58,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 30. [2019-03-04 16:25:58,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-03-04 16:25:58,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 95 transitions. [2019-03-04 16:25:58,412 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 95 transitions. Word has length 3 [2019-03-04 16:25:58,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:25:58,413 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 95 transitions. [2019-03-04 16:25:58,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:25:58,413 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 95 transitions. [2019-03-04 16:25:58,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-03-04 16:25:58,413 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:25:58,414 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-03-04 16:25:58,414 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:25:58,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:25:58,414 INFO L82 PathProgramCache]: Analyzing trace with hash 954866, now seen corresponding path program 1 times [2019-03-04 16:25:58,414 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:25:58,415 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:25:58,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:58,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:58,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:58,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:58,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:25:58,561 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:25:58,561 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:25:58,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:58,577 WARN L254 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 21 conjunts are in the unsatisfiable core [2019-03-04 16:25:58,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:25:58,587 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 27 treesize of output 30 [2019-03-04 16:25:58,593 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,593 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 30 treesize of output 32 [2019-03-04 16:25:58,598 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,600 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,601 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,603 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 32 treesize of output 34 [2019-03-04 16:25:58,612 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,615 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,618 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,621 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,624 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,627 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,628 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 34 treesize of output 36 [2019-03-04 16:25:58,636 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,638 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,640 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,642 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,644 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,645 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,646 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,647 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,648 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,650 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,651 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 36 treesize of output 38 [2019-03-04 16:25:58,664 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,665 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,666 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,667 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,668 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,669 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,671 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,672 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,674 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,675 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,677 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,678 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,680 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,681 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,683 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,685 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 38 treesize of output 40 [2019-03-04 16:25:58,695 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,697 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,698 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,700 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,701 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,703 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,705 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,706 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,707 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,709 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,710 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,712 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,713 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,715 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,716 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,718 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,754 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,759 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,762 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,763 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,764 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,766 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 40 treesize of output 42 [2019-03-04 16:25:58,773 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,775 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,783 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,784 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,785 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,786 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,787 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,788 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,789 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,790 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,792 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,793 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,794 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,796 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,797 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,798 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,800 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,801 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,802 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,804 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,805 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,807 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,808 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,809 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,811 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,812 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,814 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,815 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:58,816 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 41 [2019-03-04 16:25:58,817 INFO L309 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:58,881 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:58,902 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:58,921 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:58,941 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:58,961 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:58,982 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:59,002 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:59,117 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 16:25:59,117 INFO L309 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:59,122 INFO L309 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:59,139 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:59,159 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:59,192 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:59,226 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:59,271 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:59,336 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:59,431 INFO L309 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 2 dim-1 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-03-04 16:25:59,432 INFO L209 ElimStorePlain]: Needed 17 recursive calls to eliminate 7 variables, input treesize:147, output treesize:153 [2019-03-04 16:25:59,479 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 16:25:59,480 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:59,572 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-03-04 16:25:59,572 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:163, output treesize:127 [2019-03-04 16:25:59,683 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 2 new quantified variables, introduced 9 case distinctions, treesize of input 53 treesize of output 55 [2019-03-04 16:25:59,684 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:59,841 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 16:25:59,842 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:137, output treesize:109 [2019-03-04 16:25:59,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:25:59,934 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:25:59,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2019-03-04 16:25:59,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-03-04 16:25:59,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-03-04 16:25:59,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-03-04 16:25:59,935 INFO L87 Difference]: Start difference. First operand 30 states and 95 transitions. Second operand 8 states. [2019-03-04 16:26:03,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:26:03,251 INFO L93 Difference]: Finished difference Result 79 states and 163 transitions. [2019-03-04 16:26:03,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-03-04 16:26:03,252 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 4 [2019-03-04 16:26:03,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:26:03,253 INFO L225 Difference]: With dead ends: 79 [2019-03-04 16:26:03,253 INFO L226 Difference]: Without dead ends: 77 [2019-03-04 16:26:03,254 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-03-04 16:26:03,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2019-03-04 16:26:03,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 33. [2019-03-04 16:26:03,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-03-04 16:26:03,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 100 transitions. [2019-03-04 16:26:03,270 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 100 transitions. Word has length 4 [2019-03-04 16:26:03,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:26:03,270 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 100 transitions. [2019-03-04 16:26:03,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-03-04 16:26:03,270 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 100 transitions. [2019-03-04 16:26:03,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-03-04 16:26:03,271 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:26:03,271 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-03-04 16:26:03,271 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:26:03,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:26:03,272 INFO L82 PathProgramCache]: Analyzing trace with hash 955426, now seen corresponding path program 1 times [2019-03-04 16:26:03,272 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:26:03,272 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:26:03,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:03,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:03,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:03,434 WARN L181 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-03-04 16:26:03,448 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 16:26:03,449 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:26:03,449 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:26:03,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:03,473 WARN L254 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2019-03-04 16:26:03,474 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:26:03,504 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 27 treesize of output 30 [2019-03-04 16:26:03,517 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 35 [2019-03-04 16:26:03,524 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,525 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,526 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 34 [2019-03-04 16:26:03,535 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,539 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,541 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,544 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,546 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,548 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2019-03-04 16:26:03,555 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,556 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,559 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,560 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,561 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,563 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,564 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,565 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,566 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,569 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2019-03-04 16:26:03,575 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,576 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,577 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,580 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,581 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,582 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,584 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,585 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,586 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,587 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,589 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,590 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,591 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,592 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,595 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 40 [2019-03-04 16:26:03,651 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,675 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,698 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,723 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,765 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,782 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,803 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,828 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,851 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,876 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,894 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,915 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,940 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,965 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:03,992 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,017 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,038 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,061 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,066 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,068 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,068 INFO L301 Elim1Store]: Index analysis took 438 ms [2019-03-04 16:26:04,074 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 20 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 42 [2019-03-04 16:26:04,079 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,080 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,081 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,082 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,084 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,086 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,087 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,089 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,090 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,092 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,093 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,094 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,095 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,097 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,098 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,099 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,101 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,102 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,103 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,105 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:04,156 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 42 treesize of output 62 [2019-03-04 16:26:04,157 INFO L309 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,174 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,193 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,263 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,281 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,298 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,316 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,335 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,407 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 20 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2019-03-04 16:26:04,407 INFO L309 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,414 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,429 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,448 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,479 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,520 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:04,587 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-03-04 16:26:04,588 INFO L209 ElimStorePlain]: Needed 15 recursive calls to eliminate 8 variables, input treesize:113, output treesize:121 [2019-03-04 16:26:04,783 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 20 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 22 case distinctions, treesize of input 51 treesize of output 95 [2019-03-04 16:26:04,784 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-03-04 16:26:04,813 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 128 xjuncts. [2019-03-04 16:26:05,831 INFO L309 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 54 dim-0 vars, and 9 xjuncts. [2019-03-04 16:26:05,832 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:131, output treesize:1043 [2019-03-04 16:26:18,791 WARN L181 SmtUtils]: Spent 10.64 s on a formula simplification. DAG size of input: 556 DAG size of output: 119 [2019-03-04 16:26:18,797 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 16:26:18,816 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:26:18,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:26:18,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:26:18,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:26:18,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2019-03-04 16:26:18,817 INFO L87 Difference]: Start difference. First operand 33 states and 100 transitions. Second operand 6 states. [2019-03-04 16:26:36,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:26:36,413 INFO L93 Difference]: Finished difference Result 54 states and 134 transitions. [2019-03-04 16:26:36,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:26:36,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-03-04 16:26:36,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:26:36,414 INFO L225 Difference]: With dead ends: 54 [2019-03-04 16:26:36,414 INFO L226 Difference]: Without dead ends: 53 [2019-03-04 16:26:36,415 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2019-03-04 16:26:36,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-03-04 16:26:36,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 35. [2019-03-04 16:26:36,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-03-04 16:26:36,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 110 transitions. [2019-03-04 16:26:36,430 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 110 transitions. Word has length 4 [2019-03-04 16:26:36,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:26:36,430 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 110 transitions. [2019-03-04 16:26:36,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:26:36,431 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 110 transitions. [2019-03-04 16:26:36,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-03-04 16:26:36,431 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:26:36,431 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-03-04 16:26:36,432 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:26:36,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:26:36,432 INFO L82 PathProgramCache]: Analyzing trace with hash 954494, now seen corresponding path program 1 times [2019-03-04 16:26:36,432 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:26:36,432 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:26:36,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:36,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:36,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:36,524 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:26:36,524 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:26:36,524 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:26:36,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:36,542 WARN L254 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 16 conjunts are in the unsatisfiable core [2019-03-04 16:26:36,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:26:36,579 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 27 treesize of output 30 [2019-03-04 16:26:36,587 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,587 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 30 treesize of output 32 [2019-03-04 16:26:36,593 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,595 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,597 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,598 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 32 treesize of output 34 [2019-03-04 16:26:36,614 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,615 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,615 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,616 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,617 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,618 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,619 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 34 treesize of output 36 [2019-03-04 16:26:36,625 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,627 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,628 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,629 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,630 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,632 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,633 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,634 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,635 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,637 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,638 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 36 treesize of output 38 [2019-03-04 16:26:36,643 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,644 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,645 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,646 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,647 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,648 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,649 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,650 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,651 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,655 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,656 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,657 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,657 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,658 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,659 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,661 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 38 treesize of output 40 [2019-03-04 16:26:36,684 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,685 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,687 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,689 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,690 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,691 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,692 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,693 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,694 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,696 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,697 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,698 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,699 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,701 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,702 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,703 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,705 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,706 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,707 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,708 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,710 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,711 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 40 treesize of output 42 [2019-03-04 16:26:36,744 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,745 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,746 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,746 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,747 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,748 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,749 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,751 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,752 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,753 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,755 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,756 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,757 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,758 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,760 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,761 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,762 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,764 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,765 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,766 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,767 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:36,819 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 42 treesize of output 62 [2019-03-04 16:26:36,820 INFO L309 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:36,839 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:36,857 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:36,876 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:36,894 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:36,912 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:36,930 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:36,949 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:37,119 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2019-03-04 16:26:37,120 INFO L309 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:37,132 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:37,147 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:37,164 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:37,190 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:37,223 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:37,265 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:37,334 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 2 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-03-04 16:26:37,335 INFO L209 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:121, output treesize:125 [2019-03-04 16:26:38,033 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 51 treesize of output 95 [2019-03-04 16:26:38,033 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-03-04 16:26:38,055 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 128 xjuncts. [2019-03-04 16:26:39,093 INFO L309 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 49 dim-0 vars, and 8 xjuncts. [2019-03-04 16:26:39,093 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:135, output treesize:982 [2019-03-04 16:26:44,882 WARN L181 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 524 DAG size of output: 136 [2019-03-04 16:26:44,927 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 127 [2019-03-04 16:26:44,928 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:45,195 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 108 treesize of output 145 [2019-03-04 16:26:45,197 INFO L309 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:45,312 INFO L309 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 2 dim-1 vars, End of recursive call: 12 dim-0 vars, and 2 xjuncts. [2019-03-04 16:26:45,313 INFO L209 ElimStorePlain]: Needed 3 recursive calls to eliminate 14 variables, input treesize:265, output treesize:199 [2019-03-04 16:26:46,369 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:26:46,388 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:26:46,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2019-03-04 16:26:46,389 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-03-04 16:26:46,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-03-04 16:26:46,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-03-04 16:26:46,389 INFO L87 Difference]: Start difference. First operand 35 states and 110 transitions. Second operand 8 states. [2019-03-04 16:26:53,823 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-03-04 16:26:53,824 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) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:652) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:256) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:715) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:628) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2019-03-04 16:26:53,828 INFO L168 Benchmark]: Toolchain (without parser) took 78599.08 ms. Allocated memory was 133.7 MB in the beginning and 392.2 MB in the end (delta: 258.5 MB). Free memory was 108.9 MB in the beginning and 191.8 MB in the end (delta: -82.9 MB). Peak memory consumption was 175.6 MB. Max. memory is 7.1 GB. [2019-03-04 16:26:53,829 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 133.7 MB. Free memory is still 110.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-03-04 16:26:53,829 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.32 ms. Allocated memory is still 133.7 MB. Free memory was 108.7 MB in the beginning and 106.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-03-04 16:26:53,829 INFO L168 Benchmark]: Boogie Preprocessor took 25.57 ms. Allocated memory is still 133.7 MB. Free memory was 106.3 MB in the beginning and 105.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-03-04 16:26:53,830 INFO L168 Benchmark]: RCFGBuilder took 572.90 ms. Allocated memory is still 133.7 MB. Free memory was 105.0 MB in the beginning and 92.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-03-04 16:26:53,830 INFO L168 Benchmark]: TraceAbstraction took 77941.79 ms. Allocated memory was 133.7 MB in the beginning and 392.2 MB in the end (delta: 258.5 MB). Free memory was 91.9 MB in the beginning and 191.8 MB in the end (delta: -99.9 MB). Peak memory consumption was 158.6 MB. Max. memory is 7.1 GB. [2019-03-04 16:26:53,833 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 0.20 ms. Allocated memory is still 133.7 MB. Free memory is still 110.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.32 ms. Allocated memory is still 133.7 MB. Free memory was 108.7 MB in the beginning and 106.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.57 ms. Allocated memory is still 133.7 MB. Free memory was 106.3 MB in the beginning and 105.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 572.90 ms. Allocated memory is still 133.7 MB. Free memory was 105.0 MB in the beginning and 92.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 77941.79 ms. Allocated memory was 133.7 MB in the beginning and 392.2 MB in the end (delta: 258.5 MB). Free memory was 91.9 MB in the beginning and 191.8 MB in the end (delta: -99.9 MB). Peak memory consumption was 158.6 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) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...