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-10-limited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-1ae3202 [2019-03-04 16:23:56,612 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-03-04 16:23:56,615 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-03-04 16:23:56,633 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-03-04 16:23:56,633 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-03-04 16:23:56,634 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-03-04 16:23:56,635 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-03-04 16:23:56,638 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-03-04 16:23:56,641 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-03-04 16:23:56,642 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-03-04 16:23:56,643 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-03-04 16:23:56,644 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-03-04 16:23:56,645 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-03-04 16:23:56,647 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-03-04 16:23:56,657 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-03-04 16:23:56,658 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-03-04 16:23:56,658 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-03-04 16:23:56,660 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-03-04 16:23:56,662 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-03-04 16:23:56,664 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-03-04 16:23:56,665 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-03-04 16:23:56,666 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-03-04 16:23:56,668 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-03-04 16:23:56,668 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-03-04 16:23:56,669 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-03-04 16:23:56,669 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-03-04 16:23:56,670 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-03-04 16:23:56,671 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-03-04 16:23:56,672 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-03-04 16:23:56,673 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-03-04 16:23:56,673 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-03-04 16:23:56,674 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-03-04 16:23:56,674 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-03-04 16:23:56,674 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-03-04 16:23:56,675 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-03-04 16:23:56,676 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-03-04 16:23:56,676 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 16:23:56,690 INFO L110 SettingsManager]: Loading preferences was successful [2019-03-04 16:23:56,690 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-03-04 16:23:56,692 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-03-04 16:23:56,692 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-03-04 16:23:56,692 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-03-04 16:23:56,692 INFO L133 SettingsManager]: * User list type=DISABLED [2019-03-04 16:23:56,692 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-03-04 16:23:56,693 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-03-04 16:23:56,693 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-03-04 16:23:56,693 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-03-04 16:23:56,693 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2019-03-04 16:23:56,694 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-03-04 16:23:56,694 INFO L133 SettingsManager]: * Interval Domain=false [2019-03-04 16:23:56,695 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-03-04 16:23:56,696 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-03-04 16:23:56,696 INFO L133 SettingsManager]: * Use SBE=true [2019-03-04 16:23:56,696 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-03-04 16:23:56,696 INFO L133 SettingsManager]: * sizeof long=4 [2019-03-04 16:23:56,697 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-03-04 16:23:56,698 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-03-04 16:23:56,699 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-03-04 16:23:56,699 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-03-04 16:23:56,699 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-03-04 16:23:56,699 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-03-04 16:23:56,699 INFO L133 SettingsManager]: * sizeof long double=12 [2019-03-04 16:23:56,700 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-03-04 16:23:56,700 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-03-04 16:23:56,700 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-03-04 16:23:56,700 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-03-04 16:23:56,700 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-03-04 16:23:56,701 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-03-04 16:23:56,701 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-03-04 16:23:56,701 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-03-04 16:23:56,701 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-03-04 16:23:56,701 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-03-04 16:23:56,702 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-03-04 16:23:56,702 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-03-04 16:23:56,702 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-03-04 16:23:56,702 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-03-04 16:23:56,738 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-03-04 16:23:56,751 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-03-04 16:23:56,754 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-03-04 16:23:56,756 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-03-04 16:23:56,757 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-03-04 16:23:56,758 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-10-limited.bpl [2019-03-04 16:23:56,758 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-10-limited.bpl' [2019-03-04 16:23:56,814 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-03-04 16:23:56,816 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-03-04 16:23:56,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-03-04 16:23:56,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-03-04 16:23:56,817 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-03-04 16:23:56,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:23:56" (1/1) ... [2019-03-04 16:23:56,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:23:56" (1/1) ... [2019-03-04 16:23:56,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-03-04 16:23:56,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-03-04 16:23:56,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-03-04 16:23:56,894 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-03-04 16:23:56,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:23:56" (1/1) ... [2019-03-04 16:23:56,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:23:56" (1/1) ... [2019-03-04 16:23:56,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:23:56" (1/1) ... [2019-03-04 16:23:56,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:23:56" (1/1) ... [2019-03-04 16:23:56,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:23:56" (1/1) ... [2019-03-04 16:23:56,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:23:56" (1/1) ... [2019-03-04 16:23:56,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:23:56" (1/1) ... [2019-03-04 16:23:56,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-03-04 16:23:56,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-03-04 16:23:56,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-03-04 16:23:56,938 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-03-04 16:23:56,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:23:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-03-04 16:23:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-03-04 16:23:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-03-04 16:23:57,474 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-03-04 16:23:57,474 INFO L286 CfgBuilder]: Removed 23 assue(true) statements. [2019-03-04 16:23:57,475 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:23:57 BoogieIcfgContainer [2019-03-04 16:23:57,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-03-04 16:23:57,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-03-04 16:23:57,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-03-04 16:23:57,480 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-03-04 16:23:57,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 04:23:56" (1/2) ... [2019-03-04 16:23:57,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@561222f4 and model type speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 04:23:57, skipping insertion in model container [2019-03-04 16:23:57,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-10-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 04:23:57" (2/2) ... [2019-03-04 16:23:57,485 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-10-limited.bpl [2019-03-04 16:23:57,495 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-03-04 16:23:57,506 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-03-04 16:23:57,523 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-03-04 16:23:57,560 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-03-04 16:23:57,561 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-03-04 16:23:57,561 INFO L383 AbstractCegarLoop]: Hoare is true [2019-03-04 16:23:57,562 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-03-04 16:23:57,562 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-03-04 16:23:57,562 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-03-04 16:23:57,562 INFO L387 AbstractCegarLoop]: Difference is false [2019-03-04 16:23:57,562 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-03-04 16:23:57,563 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-03-04 16:23:57,582 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-03-04 16:23:57,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-03-04 16:23:57,594 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:23:57,596 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2019-03-04 16:23:57,599 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr9ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:23:57,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:23:57,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1004, now seen corresponding path program 1 times [2019-03-04 16:23:57,609 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:23:57,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:23:57,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:23:57,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:23:57,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:23:57,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:23:57,811 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 16:23:57,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-03-04 16:23:57,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-03-04 16:23:57,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-03-04 16:23:57,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-03-04 16:23:57,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-03-04 16:23:57,829 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2019-03-04 16:23:58,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-03-04 16:23:58,177 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2019-03-04 16:23:58,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-03-04 16:23:58,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-03-04 16:23:58,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-03-04 16:23:58,202 INFO L225 Difference]: With dead ends: 45 [2019-03-04 16:23:58,203 INFO L226 Difference]: Without dead ends: 40 [2019-03-04 16:23:58,210 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 16:23:58,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-03-04 16:23:58,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 22. [2019-03-04 16:23:58,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-03-04 16:23:58,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 41 transitions. [2019-03-04 16:23:58,273 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 41 transitions. Word has length 2 [2019-03-04 16:23:58,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-03-04 16:23:58,275 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 41 transitions. [2019-03-04 16:23:58,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-03-04 16:23:58,275 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 41 transitions. [2019-03-04 16:23:58,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-03-04 16:23:58,276 INFO L394 BasicCegarLoop]: Found error trace [2019-03-04 16:23:58,276 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-03-04 16:23:58,277 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr9ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT]=== [2019-03-04 16:23:58,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-03-04 16:23:58,277 INFO L82 PathProgramCache]: Analyzing trace with hash 30392, now seen corresponding path program 1 times [2019-03-04 16:23:58,277 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-03-04 16:23:58,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-03-04 16:23:58,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:23:58,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:23:58,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-03-04 16:23:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:23:58,473 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 16:23:58,473 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-03-04 16:23:58,473 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 16:23:58,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-03-04 16:23:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-03-04 16:23:58,522 WARN L254 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 22 conjunts are in the unsatisfiable core [2019-03-04 16:23:58,526 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-03-04 16:23:58,605 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 33 treesize of output 36 [2019-03-04 16:23:58,667 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,670 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 36 treesize of output 38 [2019-03-04 16:23:58,725 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,751 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,777 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,779 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 38 treesize of output 40 [2019-03-04 16:23:58,836 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,867 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,870 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,872 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,874 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,878 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,882 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 40 treesize of output 42 [2019-03-04 16:23:58,900 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,903 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,906 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,908 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,912 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,917 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,919 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,922 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,949 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,957 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:58,961 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 42 treesize of output 44 [2019-03-04 16:23:59,004 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,005 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,007 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,010 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,037 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,060 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,083 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,107 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,110 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,111 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,114 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,119 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,121 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,122 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,124 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,124 INFO L301 Elim1Store]: Index analysis took 130 ms [2019-03-04 16:23:59,127 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 44 treesize of output 46 [2019-03-04 16:23:59,198 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,207 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,213 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,215 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,217 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,220 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,222 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,223 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,226 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,229 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,235 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,237 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,239 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,241 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,243 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,245 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,247 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,249 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,252 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,253 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,255 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,259 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 48 [2019-03-04 16:23:59,278 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,280 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,283 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,285 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,288 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,291 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,299 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,301 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,302 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,304 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,306 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,316 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,319 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,320 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,323 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,327 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,331 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,333 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,335 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,337 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,339 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,341 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,344 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,347 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,380 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,385 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,389 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,391 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,392 INFO L301 Elim1Store]: Index analysis took 119 ms [2019-03-04 16:23:59,395 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 50 [2019-03-04 16:23:59,419 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,422 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,424 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,425 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,427 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,430 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,433 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,435 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,437 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,439 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,441 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,443 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,445 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,447 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,449 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,451 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,453 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,455 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,458 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,460 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,462 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,464 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,466 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,468 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,469 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,476 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,477 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,478 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,480 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,481 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,483 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,487 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,489 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,491 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,494 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,496 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,502 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 52 [2019-03-04 16:23:59,549 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,555 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,558 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,560 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,563 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,564 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,567 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,569 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,573 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,587 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,614 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,623 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,625 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,654 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,679 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,707 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,719 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,725 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,727 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,728 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,730 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,748 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,772 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,797 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,821 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,848 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,874 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,895 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,920 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,946 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:23:59,971 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,000 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,021 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,044 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,046 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,048 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,050 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,052 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,054 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,057 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,059 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,061 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,062 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,065 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,067 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,067 INFO L301 Elim1Store]: Index analysis took 529 ms [2019-03-04 16:24:00,075 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 45 disjoint index pairs (out of 36 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2019-03-04 16:24:00,076 INFO L309 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,160 INFO L309 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,235 INFO L309 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,318 INFO L309 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,373 INFO L309 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,412 INFO L309 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,451 INFO L309 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,489 INFO L309 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,547 INFO L309 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,582 INFO L309 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,706 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,707 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,708 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,712 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,713 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,714 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,735 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,736 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,737 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,738 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,741 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,749 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,750 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,751 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,753 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,754 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,756 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,757 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,758 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,768 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,775 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,776 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,777 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,786 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,805 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,806 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,808 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,809 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,810 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,811 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,812 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,814 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,816 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:00,818 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2019-03-04 16:24:00,820 INFO L309 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,824 INFO L309 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,827 INFO L309 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,829 INFO L309 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,835 INFO L309 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,837 INFO L309 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-03-04 16:24:00,925 INFO L309 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 2 dim-1 vars, End of recursive call: 8 dim-0 vars, and 1 xjuncts. [2019-03-04 16:24:00,926 INFO L209 ElimStorePlain]: Needed 17 recursive calls to eliminate 10 variables, input treesize:155, output treesize:78 [2019-03-04 16:24:01,073 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,077 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,079 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,080 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,080 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,081 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,082 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,083 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,085 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,086 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,087 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,089 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,094 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,097 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,099 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,120 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,121 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,122 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,122 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,123 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,124 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,125 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,127 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,128 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,129 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,131 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,132 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,133 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,134 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,137 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,138 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,139 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,140 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,142 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,143 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,144 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,145 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,147 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,148 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,149 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,150 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,152 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,153 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,154 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,155 INFO L188 IndexEqualityManager]: detected not equals via solver [2019-03-04 16:24:01,159 INFO L453 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2019-03-04 16:24:01,160 INFO L309 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-03-04 16:24:01,251 INFO L309 ElimStorePlain]: Start of recursive call 1: 9 dim-0 vars, 1 dim-1 vars, End of recursive call: 9 dim-0 vars, and 1 xjuncts. [2019-03-04 16:24:01,252 INFO L209 ElimStorePlain]: Needed 2 recursive calls to eliminate 10 variables, input treesize:88, output treesize:80 [2019-03-04 16:24:04,118 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 16:24:04,138 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-03-04 16:24:04,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2019-03-04 16:24:04,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-03-04 16:24:04,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-03-04 16:24:04,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2019-03-04 16:24:04,140 INFO L87 Difference]: Start difference. First operand 22 states and 41 transitions. Second operand 6 states. [2019-03-04 16:24:27,731 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-03-04 16:24:27,733 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:131) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:652) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:256) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:715) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:628) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Stream closed at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433) at java.io.OutputStream.write(OutputStream.java:116) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2019-03-04 16:24:27,736 INFO L168 Benchmark]: Toolchain (without parser) took 30921.52 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 106.7 MB in the beginning and 81.2 MB in the end (delta: 25.5 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2019-03-04 16:24:27,739 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory is still 108.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-03-04 16:24:27,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.21 ms. Allocated memory is still 139.5 MB. Free memory was 106.7 MB in the beginning and 104.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-03-04 16:24:27,740 INFO L168 Benchmark]: Boogie Preprocessor took 43.68 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 103.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2019-03-04 16:24:27,742 INFO L168 Benchmark]: RCFGBuilder took 537.71 ms. Allocated memory is still 139.5 MB. Free memory was 102.7 MB in the beginning and 88.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-03-04 16:24:27,743 INFO L168 Benchmark]: TraceAbstraction took 30258.99 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 88.0 MB in the beginning and 81.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 69.7 MB. Max. memory is 7.1 GB. [2019-03-04 16:24:27,748 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory is still 108.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 76.21 ms. Allocated memory is still 139.5 MB. Free memory was 106.7 MB in the beginning and 104.1 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.68 ms. Allocated memory is still 139.5 MB. Free memory was 104.1 MB in the beginning and 103.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 537.71 ms. Allocated memory is still 139.5 MB. Free memory was 102.7 MB in the beginning and 88.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30258.99 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 88.0 MB in the beginning and 81.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 69.7 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) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...