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-7-limited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-1ae3202 [2019-03-04 16:24:29,933 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-03-04 16:24:29,935 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-03-04 16:24:29,947 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-03-04 16:24:29,947 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-03-04 16:24:29,948 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-03-04 16:24:29,949 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-03-04 16:24:29,951 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-03-04 16:24:29,953 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-03-04 16:24:29,954 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-03-04 16:24:29,955 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-03-04 16:24:29,979 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 16:24:29,991 INFO L110 SettingsManager]: Loading preferences was successful [2019-03-04 16:24:29,991 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-03-04 16:24:29,992 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-03-04 16:24:29,992 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-03-04 16:24:29,993 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-03-04 16:24:29,993 INFO L133 SettingsManager]: * User list type=DISABLED [2019-03-04 16:24:29,993 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-03-04 16:24:29,993 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-03-04 16:24:29,993 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-03-04 16:24:29,993 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-03-04 16:24:29,994 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2019-03-04 16:24:29,994 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-03-04 16:24:29,994 INFO L133 SettingsManager]: * Interval Domain=false [2019-03-04 16:24:29,995 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-03-04 16:24:29,995 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-03-04 16:24:29,995 INFO L133 SettingsManager]: * Use SBE=true [2019-03-04 16:24:29,995 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-03-04 16:24:29,995 INFO L133 SettingsManager]: * sizeof long=4 [2019-03-04 16:24:29,996 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-03-04 16:24:29,996 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-03-04 16:24:29,996 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-03-04 16:24:29,996 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-03-04 16:24:29,996 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-03-04 16:24:29,997 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-03-04 16:24:29,997 INFO L133 SettingsManager]: * sizeof long double=12 [2019-03-04 16:24:29,997 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-03-04 16:24:29,997 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-03-04 16:24:29,997 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-03-04 16:24:29,998 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-03-04 16:24:29,998 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-03-04 16:24:29,998 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-03-04 16:24:29,998 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-03-04 16:24:29,998 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-03-04 16:24:29,998 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-03-04 16:24:29,999 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-03-04 16:24:29,999 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-03-04 16:24:29,999 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-03-04 16:24:29,999 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-03-04 16:24:29,999 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-03-04 16:24:30,028 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-03-04 16:24:30,043 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-03-04 16:24:30,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-03-04 16:24:30,048 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-03-04 16:24:30,049 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-03-04 16:24:30,050 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-7-limited.bpl [2019-03-04 16:24:30,050 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-7-limited.bpl' [2019-03-04 16:24:30,087 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-03-04 16:24:30,088 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-03-04 16:24:30,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-03-04 16:24:30,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-03-04 16:24:30,089 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-03-04 16:24:30,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:24:30" (1/1) ... [2019-03-04 16:24:30,117 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:24:30" (1/1) ... [2019-03-04 16:24:30,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-03-04 16:24:30,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-03-04 16:24:30,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-03-04 16:24:30,142 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-03-04 16:24:30,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:24:30" (1/1) ... [2019-03-04 16:24:30,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:24:30" (1/1) ... [2019-03-04 16:24:30,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:24:30" (1/1) ... [2019-03-04 16:24:30,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:24:30" (1/1) ... [2019-03-04 16:24:30,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:24:30" (1/1) ... [2019-03-04 16:24:30,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:24:30" (1/1) ... [2019-03-04 16:24:30,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:24:30" (1/1) ... [2019-03-04 16:24:30,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-03-04 16:24:30,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-03-04 16:24:30,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-03-04 16:24:30,167 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-03-04 16:24:30,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:24:30" (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 16:24:30,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-03-04 16:24:30,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-03-04 16:24:30,695 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-03-04 16:24:30,695 INFO L286 CfgBuilder]: Removed 17 assue(true) statements. [2019-03-04 16:24:30,696 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:24:30 BoogieIcfgContainer [2019-03-04 16:24:30,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-03-04 16:24:30,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-03-04 16:24:30,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-03-04 16:24:30,700 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-03-04 16:24:30,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:24:30" (1/2) ... [2019-03-04 16:24:30,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46bb121a and model type speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 04:24:30, skipping insertion in model container [2019-03-04 16:24:30,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:24:30" (2/2) ... [2019-03-04 16:24:30,704 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-7-limited.bpl [2019-03-04 16:24:30,713 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-03-04 16:24:30,720 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-03-04 16:24:30,731 INFO L257 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-03-04 16:24:30,759 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-03-04 16:24:30,760 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-03-04 16:24:30,760 INFO L383 AbstractCegarLoop]: Hoare is true [2019-03-04 16:24:30,760 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-03-04 16:24:30,761 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-03-04 16:24:30,761 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-03-04 16:24:30,761 INFO L387 AbstractCegarLoop]: Difference is false [2019-03-04 16:24:30,761 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-03-04 16:24:30,761 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-03-04 16:24:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-03-04 16:24:30,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-03-04 16:24:30,782 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:24:30,783 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2019-03-04 16:24:30,786 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:24:30,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:24:30,791 INFO L82 PathProgramCache]: Analyzing trace with hash 992, now seen corresponding path program 1 times [2019-03-04 16:24:30,792 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:24:30,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:24:30,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:24:30,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:24:30,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:24:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:24:30,996 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 16:24:30,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-03-04 16:24:30,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-03-04 16:24:31,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-03-04 16:24:31,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-03-04 16:24:31,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-03-04 16:24:31,018 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-03-04 16:24:31,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:24:31,280 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2019-03-04 16:24:31,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-03-04 16:24:31,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-03-04 16:24:31,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:24:31,296 INFO L225 Difference]: With dead ends: 33 [2019-03-04 16:24:31,296 INFO L226 Difference]: Without dead ends: 28 [2019-03-04 16:24:31,300 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 16:24:31,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-03-04 16:24:31,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 16. [2019-03-04 16:24:31,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-03-04 16:24:31,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 29 transitions. [2019-03-04 16:24:31,337 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 29 transitions. Word has length 2 [2019-03-04 16:24:31,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:24:31,338 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 29 transitions. [2019-03-04 16:24:31,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-03-04 16:24:31,339 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 29 transitions. [2019-03-04 16:24:31,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:24:31,339 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:24:31,340 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:24:31,340 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:24:31,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:24:31,341 INFO L82 PathProgramCache]: Analyzing trace with hash 30816, now seen corresponding path program 1 times [2019-03-04 16:24:31,341 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:24:31,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:24:31,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:24:31,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:24:31,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:24:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:24:31,412 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 16:24:31,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-03-04 16:24:31,412 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-03-04 16:24:31,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-03-04 16:24:31,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-03-04 16:24:31,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-03-04 16:24:31,415 INFO L87 Difference]: Start difference. First operand 16 states and 29 transitions. Second operand 3 states. [2019-03-04 16:24:31,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:24:31,715 INFO L93 Difference]: Finished difference Result 28 states and 40 transitions. [2019-03-04 16:24:31,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-03-04 16:24:31,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-03-04 16:24:31,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:24:31,717 INFO L225 Difference]: With dead ends: 28 [2019-03-04 16:24:31,717 INFO L226 Difference]: Without dead ends: 27 [2019-03-04 16:24:31,718 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 16:24:31,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-03-04 16:24:31,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2019-03-04 16:24:31,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-03-04 16:24:31,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 30 transitions. [2019-03-04 16:24:31,723 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 30 transitions. Word has length 3 [2019-03-04 16:24:31,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:24:31,723 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 30 transitions. [2019-03-04 16:24:31,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-03-04 16:24:31,724 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 30 transitions. [2019-03-04 16:24:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:24:31,724 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:24:31,724 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:24:31,725 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:24:31,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:24:31,725 INFO L82 PathProgramCache]: Analyzing trace with hash 30380, now seen corresponding path program 1 times [2019-03-04 16:24:31,725 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:24:31,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:24:31,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:24:31,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:24:31,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:24:31,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:24:31,886 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 16:24:31,886 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:24:31,886 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 16:24:31,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:24:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:24:31,920 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 13 conjunts are in the unsatisfiable core [2019-03-04 16:24:31,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:24:31,983 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:31,984 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:31,987 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:31,993 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:31,995 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,002 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,050 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,057 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-03-04 16:24:32,058 INFO L309 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-03-04 16:24:32,073 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:32,087 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:32,284 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 24 treesize of output 27 [2019-03-04 16:24:32,342 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,346 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 27 treesize of output 29 [2019-03-04 16:24:32,371 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,374 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,376 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,378 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 29 treesize of output 31 [2019-03-04 16:24:32,401 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,403 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,405 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,407 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,410 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,411 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,413 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 31 treesize of output 33 [2019-03-04 16:24:32,430 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,432 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,435 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,436 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,438 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,440 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,442 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,446 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,448 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,454 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,457 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 33 treesize of output 35 [2019-03-04 16:24:32,491 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,512 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,513 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,514 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,515 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,516 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,517 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,518 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,520 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,521 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,523 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,526 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,528 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,530 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,532 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,534 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 35 treesize of output 37 [2019-03-04 16:24:32,558 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,560 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,562 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,574 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,575 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,585 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,586 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,587 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,588 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,589 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,589 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,591 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,592 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,595 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,606 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,607 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,611 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,612 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,614 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,615 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,617 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:32,621 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2019-03-04 16:24:32,622 INFO L309 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-03-04 16:24:32,729 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:32,753 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:32,798 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:32,917 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:33,107 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:33,153 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:33,209 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 16:24:33,209 INFO L209 ElimStorePlain]: Needed 11 recursive calls to eliminate 7 variables, input treesize:71, output treesize:54 [2019-03-04 16:24:33,318 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,319 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,320 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,321 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,322 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,323 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,325 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,326 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,329 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,335 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,336 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,344 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,345 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,346 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,348 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,350 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,353 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,355 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,360 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,361 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,367 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:33,370 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 16:24:33,371 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:24:33,434 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 16:24:33,435 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:64, output treesize:56 [2019-03-04 16:24:34,620 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 16:24:34,639 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:24:34,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:24:34,640 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:24:34,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:24:34,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:24:34,641 INFO L87 Difference]: Start difference. First operand 17 states and 30 transitions. Second operand 6 states. [2019-03-04 16:24:54,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:24:54,728 INFO L93 Difference]: Finished difference Result 54 states and 79 transitions. [2019-03-04 16:24:54,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:24:54,729 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:24:54,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:24:54,731 INFO L225 Difference]: With dead ends: 54 [2019-03-04 16:24:54,731 INFO L226 Difference]: Without dead ends: 52 [2019-03-04 16:24:54,732 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-03-04 16:24:54,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-03-04 16:24:54,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 20. [2019-03-04 16:24:54,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-03-04 16:24:54,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 41 transitions. [2019-03-04 16:24:54,738 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 41 transitions. Word has length 3 [2019-03-04 16:24:54,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:24:54,738 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 41 transitions. [2019-03-04 16:24:54,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:24:54,738 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 41 transitions. [2019-03-04 16:24:54,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:24:54,739 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:24:54,739 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:24:54,739 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:24:54,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:24:54,740 INFO L82 PathProgramCache]: Analyzing trace with hash 30008, now seen corresponding path program 1 times [2019-03-04 16:24:54,740 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:24:54,740 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:24:54,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:24:54,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:24:54,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:24:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:24:54,796 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 16:24:54,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:24:54,796 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 16:24:54,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:24:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:24:54,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 13 conjunts are in the unsatisfiable core [2019-03-04 16:24:54,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:24:54,862 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:54,867 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:54,869 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:54,893 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:54,896 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:54,910 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:54,917 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:54,918 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-03-04 16:24:54,919 INFO L309 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-03-04 16:24:54,924 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:54,925 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:54,952 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 24 treesize of output 27 [2019-03-04 16:24:54,978 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:54,979 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 27 treesize of output 29 [2019-03-04 16:24:54,984 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:54,986 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:54,987 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:54,993 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 29 treesize of output 31 [2019-03-04 16:24:55,011 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,014 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,030 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,035 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,037 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,042 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,043 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 31 treesize of output 33 [2019-03-04 16:24:55,053 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,056 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,058 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,061 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,064 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,065 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,066 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,066 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,068 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,070 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,071 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 33 treesize of output 35 [2019-03-04 16:24:55,093 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,099 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,102 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,105 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,106 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,107 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,107 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,108 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,110 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,111 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,112 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,113 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,120 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,121 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,121 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,123 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 35 treesize of output 37 [2019-03-04 16:24:55,148 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,149 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,151 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,153 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,164 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,182 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,183 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,185 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,187 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,189 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,192 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,193 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,193 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,194 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,199 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,200 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,201 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,201 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,202 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,203 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,205 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,208 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2019-03-04 16:24:55,208 INFO L309 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-03-04 16:24:55,226 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:55,245 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:55,265 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:55,282 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:55,296 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:55,311 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:55,351 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 16:24:55,352 INFO L209 ElimStorePlain]: Needed 11 recursive calls to eliminate 8 variables, input treesize:71, output treesize:54 [2019-03-04 16:24:55,440 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,448 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,463 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,464 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,465 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,465 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,466 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,467 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,468 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,469 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,471 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,486 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,487 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,488 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,488 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,489 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,490 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,491 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,493 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,494 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,495 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,498 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 16:24:55,499 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:24:55,528 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 16:24:55,528 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:64, output treesize:54 [2019-03-04 16:24:55,546 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 16:24:55,564 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:24:55,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:24:55,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:24:55,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:24:55,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:24:55,565 INFO L87 Difference]: Start difference. First operand 20 states and 41 transitions. Second operand 6 states. [2019-03-04 16:24:55,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:24:55,773 INFO L93 Difference]: Finished difference Result 54 states and 86 transitions. [2019-03-04 16:24:55,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:24:55,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:24:55,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:24:55,775 INFO L225 Difference]: With dead ends: 54 [2019-03-04 16:24:55,775 INFO L226 Difference]: Without dead ends: 53 [2019-03-04 16:24:55,775 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:24:55,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-03-04 16:24:55,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 21. [2019-03-04 16:24:55,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-03-04 16:24:55,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 49 transitions. [2019-03-04 16:24:55,782 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 49 transitions. Word has length 3 [2019-03-04 16:24:55,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:24:55,782 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 49 transitions. [2019-03-04 16:24:55,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:24:55,782 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 49 transitions. [2019-03-04 16:24:55,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:24:55,782 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:24:55,783 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:24:55,783 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:24:55,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:24:55,783 INFO L82 PathProgramCache]: Analyzing trace with hash 30504, now seen corresponding path program 1 times [2019-03-04 16:24:55,783 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:24:55,784 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:24:55,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:24:55,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:24:55,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:24:55,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:24:55,906 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 16:24:55,907 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:24:55,907 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 16:24:55,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:24:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:24:55,937 WARN L254 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 15 conjunts are in the unsatisfiable core [2019-03-04 16:24:55,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:24:55,973 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 24 treesize of output 27 [2019-03-04 16:24:55,990 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:55,991 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 27 treesize of output 29 [2019-03-04 16:24:55,998 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,000 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,002 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,003 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 29 treesize of output 31 [2019-03-04 16:24:56,010 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,012 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,014 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,016 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,018 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,020 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,022 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 31 treesize of output 33 [2019-03-04 16:24:56,033 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,039 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,041 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,043 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,045 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,047 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,049 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,051 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,054 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,056 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,057 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 33 treesize of output 35 [2019-03-04 16:24:56,107 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,108 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,110 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,112 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,114 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,115 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,116 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,117 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,119 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,120 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,122 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,123 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,125 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,127 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,128 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,131 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 35 treesize of output 37 [2019-03-04 16:24:56,141 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,143 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,144 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,146 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,157 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,158 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,159 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,178 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,186 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,187 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,188 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,189 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,191 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,192 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,194 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,195 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,196 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,198 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,199 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,201 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,202 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,204 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2019-03-04 16:24:56,205 INFO L309 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-03-04 16:24:56,224 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:56,273 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:56,289 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:56,308 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:56,330 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:56,350 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:56,401 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,402 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,403 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,404 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,405 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,410 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,412 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,416 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,422 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,423 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,424 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,427 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2019-03-04 16:24:56,428 INFO L309 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-03-04 16:24:56,429 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:56,430 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:56,432 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:56,462 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 16:24:56,462 INFO L209 ElimStorePlain]: Needed 12 recursive calls to eliminate 7 variables, input treesize:82, output treesize:54 [2019-03-04 16:24:56,532 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,535 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,538 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,539 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,540 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,541 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,543 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,544 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,545 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,546 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,547 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,549 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,550 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,551 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,552 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,553 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,554 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,555 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,557 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,558 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,559 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:56,562 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 16:24:56,563 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:24:56,591 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 16:24:56,592 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:64, output treesize:54 [2019-03-04 16:24:57,753 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 16:24:57,772 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:24:57,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:24:57,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:24:57,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:24:57,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:24:57,773 INFO L87 Difference]: Start difference. First operand 21 states and 49 transitions. Second operand 6 states. [2019-03-04 16:25:13,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:25:13,931 INFO L93 Difference]: Finished difference Result 55 states and 94 transitions. [2019-03-04 16:25:13,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:25:13,933 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:25:13,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:25:13,934 INFO L225 Difference]: With dead ends: 55 [2019-03-04 16:25:13,935 INFO L226 Difference]: Without dead ends: 53 [2019-03-04 16:25:13,935 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-03-04 16:25:13,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2019-03-04 16:25:13,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 23. [2019-03-04 16:25:13,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-03-04 16:25:13,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 58 transitions. [2019-03-04 16:25:13,946 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 58 transitions. Word has length 3 [2019-03-04 16:25:13,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:25:13,946 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 58 transitions. [2019-03-04 16:25:13,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:25:13,946 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 58 transitions. [2019-03-04 16:25:13,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:25:13,947 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:25:13,947 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:25:13,947 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:25:13,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:25:13,947 INFO L82 PathProgramCache]: Analyzing trace with hash 30132, now seen corresponding path program 1 times [2019-03-04 16:25:13,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:25:13,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:25:13,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:13,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:13,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:14,024 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 16:25:14,024 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:25:14,024 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 16:25:14,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:14,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:14,049 WARN L254 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 15 conjunts are in the unsatisfiable core [2019-03-04 16:25:14,049 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:25:14,080 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 24 treesize of output 27 [2019-03-04 16:25:14,102 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,103 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 27 treesize of output 29 [2019-03-04 16:25:14,107 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,109 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,112 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,113 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 29 treesize of output 31 [2019-03-04 16:25:14,120 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,122 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,124 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,126 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,129 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,132 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,133 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 31 treesize of output 33 [2019-03-04 16:25:14,144 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,146 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,148 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,151 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,154 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,156 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,159 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,162 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,165 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,168 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,169 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 33 treesize of output 35 [2019-03-04 16:25:14,176 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,179 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,182 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,184 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,186 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,189 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,191 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,193 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,195 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,197 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,199 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,201 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,203 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,205 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,207 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,208 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 35 treesize of output 37 [2019-03-04 16:25:14,221 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,224 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,226 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,229 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,232 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,235 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,238 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,241 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,244 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,247 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,249 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,252 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,263 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,286 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,291 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,293 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,297 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,299 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,301 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,303 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,305 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,306 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2019-03-04 16:25:14,307 INFO L309 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:14,325 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:14,342 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:14,360 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:14,378 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:14,398 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:14,418 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:14,482 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,483 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,485 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,487 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,488 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,493 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,498 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,499 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,508 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,509 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,510 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,512 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2019-03-04 16:25:14,513 INFO L309 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:14,516 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:14,518 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:14,520 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:14,584 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 16:25:14,585 INFO L209 ElimStorePlain]: Needed 12 recursive calls to eliminate 7 variables, input treesize:82, output treesize:54 [2019-03-04 16:25:14,650 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,651 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,652 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,652 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,653 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,654 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,655 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,656 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,657 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,659 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,660 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,661 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,663 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,664 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,666 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,667 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,668 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,670 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,671 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,672 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,673 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:14,675 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 16:25:14,676 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:14,732 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 16:25:14,733 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:64, output treesize:56 [2019-03-04 16:25:15,990 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 16:25:16,009 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:25:16,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:25:16,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:25:16,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:25:16,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:25:16,010 INFO L87 Difference]: Start difference. First operand 23 states and 58 transitions. Second operand 6 states. [2019-03-04 16:25:33,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:25:33,667 INFO L93 Difference]: Finished difference Result 55 states and 101 transitions. [2019-03-04 16:25:33,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:25:33,667 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:25:33,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:25:33,668 INFO L225 Difference]: With dead ends: 55 [2019-03-04 16:25:33,668 INFO L226 Difference]: Without dead ends: 54 [2019-03-04 16:25:33,669 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-03-04 16:25:33,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-03-04 16:25:33,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 24. [2019-03-04 16:25:33,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-03-04 16:25:33,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 66 transitions. [2019-03-04 16:25:33,676 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 66 transitions. Word has length 3 [2019-03-04 16:25:33,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:25:33,676 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 66 transitions. [2019-03-04 16:25:33,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:25:33,676 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 66 transitions. [2019-03-04 16:25:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:25:33,676 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:25:33,677 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:25:33,677 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:25:33,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:25:33,677 INFO L82 PathProgramCache]: Analyzing trace with hash 30628, now seen corresponding path program 1 times [2019-03-04 16:25:33,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:25:33,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:25:33,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:33,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:33,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:33,753 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 16:25:33,753 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:25:33,754 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 16:25:33,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:33,772 WARN L254 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 15 conjunts are in the unsatisfiable core [2019-03-04 16:25:33,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:25:33,781 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 24 treesize of output 27 [2019-03-04 16:25:33,790 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,791 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 27 treesize of output 29 [2019-03-04 16:25:33,801 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,802 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,803 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,804 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 29 treesize of output 31 [2019-03-04 16:25:33,811 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,813 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,816 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,817 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,818 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,819 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,820 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 31 treesize of output 33 [2019-03-04 16:25:33,826 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,827 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,829 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,830 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,832 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,833 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,835 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,837 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,838 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,840 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,841 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 33 treesize of output 35 [2019-03-04 16:25:33,848 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,849 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,851 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,852 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,854 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,856 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,857 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,859 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,860 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,862 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,863 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,865 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,866 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,867 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,869 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,870 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 35 treesize of output 37 [2019-03-04 16:25:33,878 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,880 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,882 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,883 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,884 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,885 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,886 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,888 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,889 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,891 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,892 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,894 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,895 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,896 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,898 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,899 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,901 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,902 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,904 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,905 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,907 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:33,908 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2019-03-04 16:25:33,909 INFO L309 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:33,937 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:33,956 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:33,973 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:33,991 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:34,025 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:34,073 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:34,123 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,127 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,128 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,130 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,131 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,132 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,136 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,137 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,143 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,144 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,145 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,145 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2019-03-04 16:25:34,146 INFO L309 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:34,147 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:34,149 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:34,151 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:34,178 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 16:25:34,179 INFO L209 ElimStorePlain]: Needed 12 recursive calls to eliminate 7 variables, input treesize:82, output treesize:54 [2019-03-04 16:25:34,274 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,297 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,321 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,331 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,333 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,335 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,337 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,337 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,338 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,339 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,340 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,340 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,341 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,342 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,343 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,344 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,346 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,347 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,348 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,349 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,350 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:34,352 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 16:25:34,353 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:34,384 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 16:25:34,384 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:64, output treesize:56 [2019-03-04 16:25:35,606 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 16:25:35,625 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:25:35,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:25:35,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:25:35,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:25:35,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:25:35,626 INFO L87 Difference]: Start difference. First operand 24 states and 66 transitions. Second operand 6 states. [2019-03-04 16:25:52,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:25:52,474 INFO L93 Difference]: Finished difference Result 56 states and 109 transitions. [2019-03-04 16:25:52,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:25:52,475 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:25:52,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:25:52,476 INFO L225 Difference]: With dead ends: 56 [2019-03-04 16:25:52,476 INFO L226 Difference]: Without dead ends: 54 [2019-03-04 16:25:52,477 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-03-04 16:25:52,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2019-03-04 16:25:52,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 26. [2019-03-04 16:25:52,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-03-04 16:25:52,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 75 transitions. [2019-03-04 16:25:52,483 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 75 transitions. Word has length 3 [2019-03-04 16:25:52,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:25:52,484 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 75 transitions. [2019-03-04 16:25:52,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:25:52,484 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 75 transitions. [2019-03-04 16:25:52,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:25:52,484 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:25:52,485 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:25:52,485 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:25:52,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:25:52,485 INFO L82 PathProgramCache]: Analyzing trace with hash 30690, now seen corresponding path program 1 times [2019-03-04 16:25:52,485 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:25:52,485 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:25:52,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:52,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:52,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:25:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:52,552 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 16:25:52,553 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:25:52,553 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 16:25:52,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:25:52,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:25:52,569 WARN L254 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 15 conjunts are in the unsatisfiable core [2019-03-04 16:25:52,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:25:52,582 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 24 treesize of output 27 [2019-03-04 16:25:52,602 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,603 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 27 treesize of output 29 [2019-03-04 16:25:52,625 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,626 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,627 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,628 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 29 treesize of output 31 [2019-03-04 16:25:52,639 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,641 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,643 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,645 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,647 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,649 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,650 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 31 treesize of output 33 [2019-03-04 16:25:52,659 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,661 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,661 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,663 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,664 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,666 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,667 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,669 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,670 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,671 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,673 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 33 treesize of output 35 [2019-03-04 16:25:52,679 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,680 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,682 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,683 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,685 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,686 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,688 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,689 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,690 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,692 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,693 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,695 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,696 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,698 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,699 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,700 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 35 treesize of output 37 [2019-03-04 16:25:52,707 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,709 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,710 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,712 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,713 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,715 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,716 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,717 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,719 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,720 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,722 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,723 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,724 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,726 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,727 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,729 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,730 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,732 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,733 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,735 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,736 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,737 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2019-03-04 16:25:52,738 INFO L309 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:52,756 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:52,774 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:52,792 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:52,809 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:52,829 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:52,845 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:52,891 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,892 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,894 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,895 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,896 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,900 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,903 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,905 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,910 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,912 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,913 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,914 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2019-03-04 16:25:52,914 INFO L309 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:52,916 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:52,918 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:52,920 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:25:52,949 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 16:25:52,950 INFO L209 ElimStorePlain]: Needed 12 recursive calls to eliminate 7 variables, input treesize:82, output treesize:54 [2019-03-04 16:25:52,995 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,996 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,996 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,997 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:52,999 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,000 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,001 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,002 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,003 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,004 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,006 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,007 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,008 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,009 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,010 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,012 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,020 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,045 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,067 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,090 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,092 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:25:53,093 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 16:25:53,094 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:25:53,122 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 16:25:53,122 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:64, output treesize:54 [2019-03-04 16:25:54,331 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 16:25:54,350 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:25:54,351 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:25:54,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:25:54,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:25:54,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:25:54,351 INFO L87 Difference]: Start difference. First operand 26 states and 75 transitions. Second operand 6 states. [2019-03-04 16:26:09,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:26:09,680 INFO L93 Difference]: Finished difference Result 56 states and 116 transitions. [2019-03-04 16:26:09,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:26:09,681 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:26:09,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:26:09,682 INFO L225 Difference]: With dead ends: 56 [2019-03-04 16:26:09,682 INFO L226 Difference]: Without dead ends: 50 [2019-03-04 16:26:09,683 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-03-04 16:26:09,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-03-04 16:26:09,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 24. [2019-03-04 16:26:09,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-03-04 16:26:09,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 79 transitions. [2019-03-04 16:26:09,689 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 79 transitions. Word has length 3 [2019-03-04 16:26:09,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:26:09,689 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 79 transitions. [2019-03-04 16:26:09,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:26:09,689 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 79 transitions. [2019-03-04 16:26:09,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:26:09,690 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:26:09,690 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:26:09,690 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:26:09,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:26:09,690 INFO L82 PathProgramCache]: Analyzing trace with hash 30256, now seen corresponding path program 1 times [2019-03-04 16:26:09,691 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:26:09,691 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:26:09,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:09,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:09,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:09,766 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 16:26:09,766 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:26:09,766 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 16:26:09,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:09,782 WARN L254 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 15 conjunts are in the unsatisfiable core [2019-03-04 16:26:09,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:26:09,791 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,792 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,795 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,796 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,798 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,799 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,800 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,804 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,812 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,814 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,816 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,819 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2019-03-04 16:26:09,819 INFO L309 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:09,826 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:09,830 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:09,835 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:09,862 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 24 treesize of output 27 [2019-03-04 16:26:09,876 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,877 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 27 treesize of output 29 [2019-03-04 16:26:09,883 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,884 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,886 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,887 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 29 treesize of output 31 [2019-03-04 16:26:09,894 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,896 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,897 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,913 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,914 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,915 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,915 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 31 treesize of output 33 [2019-03-04 16:26:09,928 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,928 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,929 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,930 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,931 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,931 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,933 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,934 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,935 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,936 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,937 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 33 treesize of output 35 [2019-03-04 16:26:09,942 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,948 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,952 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,953 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,965 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,966 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,967 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,968 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,968 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,969 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,970 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,971 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,973 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,974 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,975 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,977 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 35 treesize of output 37 [2019-03-04 16:26:09,985 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,987 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,988 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,989 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,990 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,991 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,993 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,994 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,995 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,996 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,997 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:09,998 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,000 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,002 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,004 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,006 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,007 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,008 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,010 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,011 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,012 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,014 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2019-03-04 16:26:10,014 INFO L309 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:10,028 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:10,043 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:10,060 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:10,075 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:10,090 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:10,104 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:10,134 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 16:26:10,134 INFO L209 ElimStorePlain]: Needed 12 recursive calls to eliminate 7 variables, input treesize:82, output treesize:54 [2019-03-04 16:26:10,177 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,178 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,180 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,182 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,183 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,184 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,187 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,188 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,190 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,197 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,198 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,199 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,199 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,200 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,202 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,203 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,204 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,205 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,207 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,212 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,214 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:10,215 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 16:26:10,215 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:10,257 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 16:26:10,258 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:64, output treesize:54 [2019-03-04 16:26:11,502 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 16:26:11,521 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:26:11,521 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:26:11,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:26:11,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:26:11,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:26:11,522 INFO L87 Difference]: Start difference. First operand 24 states and 79 transitions. Second operand 6 states. [2019-03-04 16:26:17,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:26:17,079 INFO L93 Difference]: Finished difference Result 52 states and 119 transitions. [2019-03-04 16:26:17,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:26:17,080 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 3 [2019-03-04 16:26:17,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:26:17,080 INFO L225 Difference]: With dead ends: 52 [2019-03-04 16:26:17,081 INFO L226 Difference]: Without dead ends: 48 [2019-03-04 16:26:17,081 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-03-04 16:26:17,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-03-04 16:26:17,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 23. [2019-03-04 16:26:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-03-04 16:26:17,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 84 transitions. [2019-03-04 16:26:17,088 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 84 transitions. Word has length 3 [2019-03-04 16:26:17,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:26:17,089 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 84 transitions. [2019-03-04 16:26:17,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:26:17,089 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 84 transitions. [2019-03-04 16:26:17,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-03-04 16:26:17,089 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:26:17,090 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-03-04 16:26:17,090 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:26:17,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:26:17,090 INFO L82 PathProgramCache]: Analyzing trace with hash 941844, now seen corresponding path program 1 times [2019-03-04 16:26:17,090 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:26:17,091 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:26:17,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:17,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:17,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:17,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:17,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-03-04 16:26:17,198 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:26:17,198 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 16:26:17,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:17,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 10 conjunts are in the unsatisfiable core [2019-03-04 16:26:17,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:26:17,237 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,240 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,243 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,246 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,253 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2019-03-04 16:26:17,254 INFO L309 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:17,263 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:17,291 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 24 treesize of output 27 [2019-03-04 16:26:17,304 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 32 [2019-03-04 16:26:17,311 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,328 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 29 treesize of output 34 [2019-03-04 16:26:17,344 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,346 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,348 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,359 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 31 treesize of output 36 [2019-03-04 16:26:17,400 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,404 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,405 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,406 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,407 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,409 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,421 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 38 [2019-03-04 16:26:17,426 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,427 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,427 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,429 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,430 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,431 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,434 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,435 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,437 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,439 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,452 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 37 [2019-03-04 16:26:17,456 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,457 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,457 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,458 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,460 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,461 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,462 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,463 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,465 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,466 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,467 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,469 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,471 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,473 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,474 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,487 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 39 [2019-03-04 16:26:17,488 INFO L309 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:17,501 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:17,514 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:17,528 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:17,542 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:17,556 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:17,570 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:17,600 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 16:26:17,601 INFO L209 ElimStorePlain]: Needed 10 recursive calls to eliminate 7 variables, input treesize:60, output treesize:55 [2019-03-04 16:26:17,644 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,645 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,646 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,646 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,648 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,650 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,651 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,652 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,653 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,655 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,656 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,657 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,659 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,661 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,663 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:17,677 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 2 new quantified variables, introduced 7 case distinctions, treesize of input 46 treesize of output 48 [2019-03-04 16:26:17,679 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-03-04 16:26:17,736 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 11 dim-0 vars, and 2 xjuncts. [2019-03-04 16:26:17,736 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:65, output treesize:110 [2019-03-04 16:26:19,081 WARN L181 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 32 [2019-03-04 16:26:19,084 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 16:26:19,102 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:26:19,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:26:19,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:26:19,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:26:19,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:26:19,103 INFO L87 Difference]: Start difference. First operand 23 states and 84 transitions. Second operand 6 states. [2019-03-04 16:26:19,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:26:19,552 INFO L93 Difference]: Finished difference Result 47 states and 114 transitions. [2019-03-04 16:26:19,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-03-04 16:26:19,552 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-03-04 16:26:19,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:26:19,553 INFO L225 Difference]: With dead ends: 47 [2019-03-04 16:26:19,553 INFO L226 Difference]: Without dead ends: 46 [2019-03-04 16:26:19,553 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-03-04 16:26:19,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-03-04 16:26:19,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 24. [2019-03-04 16:26:19,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-03-04 16:26:19,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 85 transitions. [2019-03-04 16:26:19,560 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 85 transitions. Word has length 4 [2019-03-04 16:26:19,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:26:19,560 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 85 transitions. [2019-03-04 16:26:19,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-03-04 16:26:19,560 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 85 transitions. [2019-03-04 16:26:19,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-03-04 16:26:19,561 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:26:19,561 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-03-04 16:26:19,561 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:26:19,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:26:19,562 INFO L82 PathProgramCache]: Analyzing trace with hash 941036, now seen corresponding path program 1 times [2019-03-04 16:26:19,562 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:26:19,562 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:26:19,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:19,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:19,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:19,634 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 16:26:19,635 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:26:19,635 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:26:19,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:19,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:19,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 14 conjunts are in the unsatisfiable core [2019-03-04 16:26:19,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:26:19,661 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,663 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,665 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,667 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,670 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,674 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,688 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,688 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-03-04 16:26:19,689 INFO L309 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:19,694 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:19,695 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:19,727 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 24 treesize of output 27 [2019-03-04 16:26:19,738 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,739 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 27 treesize of output 29 [2019-03-04 16:26:19,743 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,744 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,745 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,745 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 29 treesize of output 31 [2019-03-04 16:26:19,749 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,750 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,751 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,752 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,753 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,754 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,755 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 31 treesize of output 33 [2019-03-04 16:26:19,763 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,764 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,765 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,766 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,766 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,767 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,768 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,774 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,800 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,814 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,815 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 33 treesize of output 35 [2019-03-04 16:26:19,820 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,822 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,824 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,825 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,825 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,826 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,827 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,828 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,829 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,830 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,831 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,832 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,834 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,835 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,836 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,837 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 35 treesize of output 37 [2019-03-04 16:26:19,842 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,843 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,843 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,844 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,845 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,846 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,847 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,848 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,849 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,850 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,851 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,852 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,854 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,855 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,856 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,857 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,858 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,859 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,861 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,862 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,863 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:19,864 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2019-03-04 16:26:19,865 INFO L309 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:19,878 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:19,892 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:19,907 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:19,922 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:19,937 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:19,950 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:19,980 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 16:26:19,980 INFO L209 ElimStorePlain]: Needed 11 recursive calls to eliminate 7 variables, input treesize:71, output treesize:54 [2019-03-04 16:26:20,002 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,003 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,004 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,005 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,006 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,007 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,008 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,010 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,011 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,012 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,013 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,014 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,016 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,017 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,018 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,019 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,020 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,022 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,023 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,024 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,025 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:20,027 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 16:26:20,028 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:20,060 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 16:26:20,060 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:64, output treesize:56 [2019-03-04 16:26:21,290 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,307 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,308 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,308 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,309 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,310 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,311 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,311 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,313 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,314 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,315 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,316 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,317 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,319 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,320 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,321 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,322 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,323 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,324 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,326 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,327 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:21,328 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 48 treesize of output 43 [2019-03-04 16:26:21,329 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:21,358 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 16:26:21,358 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:66, output treesize:56 [2019-03-04 16:26:21,416 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 16:26:21,434 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:26:21,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2019-03-04 16:26:21,435 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-03-04 16:26:21,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-03-04 16:26:21,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-03-04 16:26:21,435 INFO L87 Difference]: Start difference. First operand 24 states and 85 transitions. Second operand 8 states. [2019-03-04 16:26:25,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:26:25,399 INFO L93 Difference]: Finished difference Result 61 states and 141 transitions. [2019-03-04 16:26:25,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-03-04 16:26:25,399 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 4 [2019-03-04 16:26:25,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:26:25,400 INFO L225 Difference]: With dead ends: 61 [2019-03-04 16:26:25,400 INFO L226 Difference]: Without dead ends: 60 [2019-03-04 16:26:25,400 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-03-04 16:26:25,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-03-04 16:26:25,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 23. [2019-03-04 16:26:25,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-03-04 16:26:25,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 77 transitions. [2019-03-04 16:26:25,408 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 77 transitions. Word has length 4 [2019-03-04 16:26:25,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:26:25,408 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 77 transitions. [2019-03-04 16:26:25,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-03-04 16:26:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 77 transitions. [2019-03-04 16:26:25,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-03-04 16:26:25,409 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:26:25,409 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-03-04 16:26:25,409 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:26:25,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:26:25,410 INFO L82 PathProgramCache]: Analyzing trace with hash 941160, now seen corresponding path program 1 times [2019-03-04 16:26:25,410 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:26:25,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:26:25,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:25,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:25,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:25,510 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 16:26:25,510 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:26:25,510 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:26:25,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:25,541 WARN L254 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 16 conjunts are in the unsatisfiable core [2019-03-04 16:26:25,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:26:25,562 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 24 treesize of output 27 [2019-03-04 16:26:25,590 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,591 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 27 treesize of output 29 [2019-03-04 16:26:25,647 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,675 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,689 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,690 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 29 treesize of output 31 [2019-03-04 16:26:25,694 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,696 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,697 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,699 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,700 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,701 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,702 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 31 treesize of output 33 [2019-03-04 16:26:25,709 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,711 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,712 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,713 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,715 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,716 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,718 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,719 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,721 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,722 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,725 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 33 treesize of output 35 [2019-03-04 16:26:25,733 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,734 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,735 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,737 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,739 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,741 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,743 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,748 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,750 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,752 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,753 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,754 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,755 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,756 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,758 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,759 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 35 treesize of output 37 [2019-03-04 16:26:25,768 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,770 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,771 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,772 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,774 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,776 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,777 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,779 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,780 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,782 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,784 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,787 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,789 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,791 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,793 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,795 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,797 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,799 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,801 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,803 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,805 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:25,807 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2019-03-04 16:26:25,807 INFO L309 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:25,825 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:25,850 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:25,870 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:25,895 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:25,914 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:25,941 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:26,005 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,006 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,008 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,017 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,020 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,023 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,024 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,024 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,025 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,029 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,030 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,032 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,033 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2019-03-04 16:26:26,033 INFO L309 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:26,038 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:26,039 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:26,040 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:26,068 INFO L309 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-03-04 16:26:26,068 INFO L209 ElimStorePlain]: Needed 12 recursive calls to eliminate 6 variables, input treesize:85, output treesize:54 [2019-03-04 16:26:26,103 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,104 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,105 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,106 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,107 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,108 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,109 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,110 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,112 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,113 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,114 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,115 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,116 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,118 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,119 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,120 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,121 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,124 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,125 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,125 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,126 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,127 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 16:26:26,127 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:26,155 INFO L309 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-03-04 16:26:26,156 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:64, output treesize:56 [2019-03-04 16:26:26,318 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,319 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,320 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,321 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,323 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,324 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,325 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,326 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,327 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,328 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,330 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,331 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,332 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,333 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,334 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,336 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,337 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,338 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,339 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,340 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,342 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:26,343 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 43 [2019-03-04 16:26:26,343 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:26,373 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 16:26:26,373 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:66, output treesize:58 [2019-03-04 16:26:28,770 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 16:26:28,791 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:26:28,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2019-03-04 16:26:28,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-03-04 16:26:28,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-03-04 16:26:28,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-03-04 16:26:28,792 INFO L87 Difference]: Start difference. First operand 23 states and 77 transitions. Second operand 8 states. [2019-03-04 16:26:55,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:26:55,878 INFO L93 Difference]: Finished difference Result 61 states and 127 transitions. [2019-03-04 16:26:55,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-03-04 16:26:55,880 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 4 [2019-03-04 16:26:55,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:26:55,881 INFO L225 Difference]: With dead ends: 61 [2019-03-04 16:26:55,881 INFO L226 Difference]: Without dead ends: 60 [2019-03-04 16:26:55,881 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-03-04 16:26:55,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-03-04 16:26:55,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 23. [2019-03-04 16:26:55,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-03-04 16:26:55,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 77 transitions. [2019-03-04 16:26:55,889 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 77 transitions. Word has length 4 [2019-03-04 16:26:55,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:26:55,889 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 77 transitions. [2019-03-04 16:26:55,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-03-04 16:26:55,889 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 77 transitions. [2019-03-04 16:26:55,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-03-04 16:26:55,890 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:26:55,890 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-03-04 16:26:55,890 INFO L423 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:26:55,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:26:55,891 INFO L82 PathProgramCache]: Analyzing trace with hash 941656, now seen corresponding path program 1 times [2019-03-04 16:26:55,891 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:26:55,891 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:26:55,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:55,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:55,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:26:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:56,076 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 16:26:56,077 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:26:56,077 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:26:56,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:26:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:26:56,095 WARN L254 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 16 conjunts are in the unsatisfiable core [2019-03-04 16:26:56,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:26:56,108 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,110 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,112 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,116 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,118 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,119 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,121 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,122 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,129 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,130 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,132 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,133 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2019-03-04 16:26:56,133 INFO L309 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,135 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,137 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,138 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,160 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 24 treesize of output 27 [2019-03-04 16:26:56,164 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,173 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 27 treesize of output 29 [2019-03-04 16:26:56,179 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,182 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,185 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,185 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 29 treesize of output 31 [2019-03-04 16:26:56,188 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,197 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,198 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,199 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,200 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,200 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,201 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 31 treesize of output 33 [2019-03-04 16:26:56,206 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,207 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,207 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,208 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,209 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,211 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,212 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,213 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,214 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,215 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,216 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 33 treesize of output 35 [2019-03-04 16:26:56,221 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,222 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,222 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,224 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,225 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,226 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,227 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,228 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,230 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,231 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,232 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,233 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,234 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,236 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,237 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,238 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 35 treesize of output 37 [2019-03-04 16:26:56,260 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,261 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,262 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,263 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,263 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,265 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,266 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,267 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,268 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,269 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,271 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,272 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,273 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,274 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,276 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,277 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,278 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,279 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,280 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,282 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,283 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,284 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2019-03-04 16:26:56,284 INFO L309 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,310 INFO L309 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,329 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,354 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,374 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,396 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,414 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,446 INFO L309 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-03-04 16:26:56,446 INFO L209 ElimStorePlain]: Needed 12 recursive calls to eliminate 6 variables, input treesize:82, output treesize:54 [2019-03-04 16:26:56,488 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,490 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,492 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,494 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,496 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,498 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,500 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,502 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,504 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,506 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,508 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,510 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,512 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,514 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,516 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,518 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,520 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,522 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,524 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,526 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,528 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,529 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 16:26:56,529 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,564 INFO L309 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-1 vars, End of recursive call: 5 dim-0 vars, and 1 xjuncts. [2019-03-04 16:26:56,564 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:64, output treesize:56 [2019-03-04 16:26:56,620 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,622 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,625 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,628 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,631 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,633 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,635 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,638 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,640 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,643 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,645 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,647 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,649 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,652 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,655 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,657 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,659 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,661 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,664 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,666 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,669 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:26:56,670 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 48 treesize of output 43 [2019-03-04 16:26:56,670 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:26:56,711 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 16:26:56,711 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:66, output treesize:58 [2019-03-04 16:26:59,100 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 16:26:59,119 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:26:59,119 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2019-03-04 16:26:59,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-03-04 16:26:59,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-03-04 16:26:59,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-03-04 16:26:59,120 INFO L87 Difference]: Start difference. First operand 23 states and 77 transitions. Second operand 8 states. [2019-03-04 16:27:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:27:23,065 INFO L93 Difference]: Finished difference Result 61 states and 127 transitions. [2019-03-04 16:27:23,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-03-04 16:27:23,065 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 4 [2019-03-04 16:27:23,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:27:23,066 INFO L225 Difference]: With dead ends: 61 [2019-03-04 16:27:23,067 INFO L226 Difference]: Without dead ends: 59 [2019-03-04 16:27:23,067 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-03-04 16:27:23,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2019-03-04 16:27:23,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 28. [2019-03-04 16:27:23,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-03-04 16:27:23,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 85 transitions. [2019-03-04 16:27:23,077 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 85 transitions. Word has length 4 [2019-03-04 16:27:23,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:27:23,077 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 85 transitions. [2019-03-04 16:27:23,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-03-04 16:27:23,078 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 85 transitions. [2019-03-04 16:27:23,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-03-04 16:27:23,078 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:27:23,078 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-03-04 16:27:23,078 INFO L423 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:27:23,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:27:23,079 INFO L82 PathProgramCache]: Analyzing trace with hash 930312, now seen corresponding path program 1 times [2019-03-04 16:27:23,079 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:27:23,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:27:23,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:27:23,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:27:23,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:27:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:27:23,203 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 16:27:23,204 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:27:23,204 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-03-04 16:27:23,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:27:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:27:23,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 12 conjunts are in the unsatisfiable core [2019-03-04 16:27:23,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:27:23,230 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 24 treesize of output 27 [2019-03-04 16:27:23,252 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,253 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 27 treesize of output 29 [2019-03-04 16:27:23,259 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,261 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,276 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 34 [2019-03-04 16:27:23,280 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,281 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,282 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,284 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,293 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 36 [2019-03-04 16:27:23,298 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,299 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,300 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,301 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,302 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,305 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,307 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,318 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 38 [2019-03-04 16:27:23,323 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,324 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,325 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,326 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,327 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,328 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,330 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,332 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,333 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,335 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,338 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,339 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,345 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 37 [2019-03-04 16:27:23,379 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,382 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,383 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,383 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,384 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,385 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,386 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,388 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,389 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,391 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,392 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,394 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,396 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,397 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,400 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,401 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,402 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,415 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 39 [2019-03-04 16:27:23,416 INFO L309 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-03-04 16:27:23,428 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:27:23,443 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:27:23,459 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:27:23,476 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:27:23,492 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:27:23,508 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:27:23,558 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,559 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,560 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,562 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,570 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,571 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-03-04 16:27:23,571 INFO L309 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-03-04 16:27:23,574 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:27:23,580 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:27:23,613 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 16:27:23,613 INFO L209 ElimStorePlain]: Needed 11 recursive calls to eliminate 7 variables, input treesize:68, output treesize:59 [2019-03-04 16:27:23,637 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,638 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,638 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,640 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,641 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,642 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,643 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,644 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,646 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,648 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,649 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,650 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,652 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,653 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,656 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:27:23,694 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 46 treesize of output 69 [2019-03-04 16:27:23,699 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 16 xjuncts. [2019-03-04 16:27:23,850 INFO L309 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 26 dim-0 vars, and 5 xjuncts. [2019-03-04 16:27:23,850 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:69, output treesize:236 [2019-03-04 16:27:46,723 WARN L181 SmtUtils]: Spent 22.10 s on a formula simplification that was a NOOP. DAG size: 126 [2019-03-04 16:27:46,732 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 16:27:46,750 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:27:46,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:27:46,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:27:46,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:27:46,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-03-04 16:27:46,751 INFO L87 Difference]: Start difference. First operand 28 states and 85 transitions. Second operand 6 states. [2019-03-04 16:27:53,520 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-03-04 16:27:53,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-03-04 16:27:53,522 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:152) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:699) 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: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 49 more [2019-03-04 16:27:53,526 INFO L168 Benchmark]: Toolchain (without parser) took 203438.71 ms. Allocated memory was 133.7 MB in the beginning and 307.2 MB in the end (delta: 173.5 MB). Free memory was 108.9 MB in the beginning and 164.4 MB in the end (delta: -55.5 MB). Peak memory consumption was 118.0 MB. Max. memory is 7.1 GB. [2019-03-04 16:27:53,527 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 133.7 MB. Free memory is still 110.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-03-04 16:27:53,527 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.96 ms. Allocated memory is still 133.7 MB. Free memory was 108.7 MB in the beginning and 106.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-03-04 16:27:53,528 INFO L168 Benchmark]: Boogie Preprocessor took 25.17 ms. Allocated memory is still 133.7 MB. Free memory was 106.4 MB in the beginning and 105.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-03-04 16:27:53,528 INFO L168 Benchmark]: RCFGBuilder took 529.33 ms. Allocated memory is still 133.7 MB. Free memory was 105.1 MB in the beginning and 92.8 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2019-03-04 16:27:53,529 INFO L168 Benchmark]: TraceAbstraction took 202828.02 ms. Allocated memory was 133.7 MB in the beginning and 307.2 MB in the end (delta: 173.5 MB). Free memory was 92.6 MB in the beginning and 164.4 MB in the end (delta: -71.8 MB). Peak memory consumption was 101.7 MB. Max. memory is 7.1 GB. [2019-03-04 16:27:53,531 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 133.7 MB. Free memory is still 110.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.96 ms. Allocated memory is still 133.7 MB. Free memory was 108.7 MB in the beginning and 106.4 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.17 ms. Allocated memory is still 133.7 MB. Free memory was 106.4 MB in the beginning and 105.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 529.33 ms. Allocated memory is still 133.7 MB. Free memory was 105.1 MB in the beginning and 92.8 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202828.02 ms. Allocated memory was 133.7 MB in the beginning and 307.2 MB in the end (delta: 173.5 MB). Free memory was 92.6 MB in the beginning and 164.4 MB in the end (delta: -71.8 MB). Peak memory consumption was 101.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...