java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 15:27:45,452 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 15:27:45,454 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 15:27:45,469 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 15:27:45,470 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 15:27:45,471 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 15:27:45,472 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 15:27:45,474 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 15:27:45,475 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 15:27:45,476 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 15:27:45,477 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 15:27:45,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 15:27:45,478 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 15:27:45,479 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 15:27:45,481 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 15:27:45,481 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 15:27:45,482 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 15:27:45,484 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 15:27:45,486 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 15:27:45,488 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 15:27:45,489 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 15:27:45,491 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 15:27:45,493 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 15:27:45,493 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 15:27:45,494 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 15:27:45,495 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 15:27:45,496 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 15:27:45,497 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 15:27:45,498 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 15:27:45,499 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 15:27:45,499 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 15:27:45,500 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 15:27:45,503 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf [2018-07-23 15:27:45,518 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 15:27:45,519 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 15:27:45,520 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 15:27:45,520 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 15:27:45,523 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 15:27:45,524 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 15:27:45,524 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 15:27:45,524 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 15:27:45,577 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 15:27:45,590 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 15:27:45,594 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 15:27:45,595 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 15:27:45,596 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 15:27:45,597 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl [2018-07-23 15:27:45,597 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl' [2018-07-23 15:27:45,692 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 15:27:45,694 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 15:27:45,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 15:27:45,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 15:27:45,696 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 15:27:45,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:45" (1/1) ... [2018-07-23 15:27:45,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:45" (1/1) ... [2018-07-23 15:27:45,741 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:45" (1/1) ... [2018-07-23 15:27:45,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:45" (1/1) ... [2018-07-23 15:27:45,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:45" (1/1) ... [2018-07-23 15:27:45,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:45" (1/1) ... [2018-07-23 15:27:45,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:45" (1/1) ... [2018-07-23 15:27:45,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 15:27:45,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 15:27:45,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 15:27:45,763 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 15:27:45,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:45" (1/1) ... [2018-07-23 15:27:45,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 15:27:45,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 15:27:46,707 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 15:27:46,708 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:46 BoogieIcfgContainer [2018-07-23 15:27:46,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 15:27:46,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 15:27:46,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 15:27:46,713 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 15:27:46,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 03:27:45" (1/2) ... [2018-07-23 15:27:46,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a23969e and model type pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 03:27:46, skipping insertion in model container [2018-07-23 15:27:46,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:27:46" (2/2) ... [2018-07-23 15:27:46,717 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl [2018-07-23 15:27:46,727 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 15:27:46,736 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 15:27:46,783 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 15:27:46,784 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 15:27:46,784 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 15:27:46,784 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 15:27:46,784 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 15:27:46,785 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 15:27:46,785 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 15:27:46,785 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 15:27:46,785 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 15:27:46,800 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 15:27:46,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 15:27:46,808 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:27:46,810 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 15:27:46,810 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:27:46,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1001234, now seen corresponding path program 1 times [2018-07-23 15:27:46,822 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:27:46,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:27:46,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:27:46,990 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 15:27:46,991 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 15:27:46,999 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:27:47,014 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:27:47,015 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:27:47,018 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 15:27:47,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:27:47,077 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-07-23 15:27:47,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 15:27:47,079 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 15:27:47,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:27:47,090 INFO L225 Difference]: With dead ends: 11 [2018-07-23 15:27:47,091 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 15:27:47,095 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:27:47,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 15:27:47,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-07-23 15:27:47,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 15:27:47,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 15:27:47,134 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 15:27:47,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:27:47,135 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 15:27:47,135 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:27:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 15:27:47,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 15:27:47,136 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:27:47,136 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 15:27:47,136 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:27:47,137 INFO L82 PathProgramCache]: Analyzing trace with hash 962148267, now seen corresponding path program 1 times [2018-07-23 15:27:47,137 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:27:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:27:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:27:47,291 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:27:47,291 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-23 15:27:47,297 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 15:27:47,298 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 15:27:47,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-23 15:27:47,299 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2018-07-23 15:27:47,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:27:47,416 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-07-23 15:27:47,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 15:27:47,417 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2018-07-23 15:27:47,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:27:47,419 INFO L225 Difference]: With dead ends: 12 [2018-07-23 15:27:47,419 INFO L226 Difference]: Without dead ends: 10 [2018-07-23 15:27:47,423 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 15:27:47,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-23 15:27:47,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-07-23 15:27:47,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 15:27:47,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-07-23 15:27:47,433 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-07-23 15:27:47,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:27:47,433 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-07-23 15:27:47,434 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 15:27:47,434 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-07-23 15:27:47,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 15:27:47,434 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:27:47,435 INFO L353 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-07-23 15:27:47,435 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:27:47,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1206478340, now seen corresponding path program 2 times [2018-07-23 15:27:47,436 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:27:47,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:27:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:27:47,615 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:27:47,615 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-23 15:27:47,617 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 15:27:47,617 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 15:27:47,618 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-23 15:27:47,619 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2018-07-23 15:27:47,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:27:47,813 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-07-23 15:27:47,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 15:27:47,814 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2018-07-23 15:27:47,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:27:47,815 INFO L225 Difference]: With dead ends: 13 [2018-07-23 15:27:47,816 INFO L226 Difference]: Without dead ends: 11 [2018-07-23 15:27:47,817 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-07-23 15:27:47,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-07-23 15:27:47,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-07-23 15:27:47,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-07-23 15:27:47,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-07-23 15:27:47,830 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-07-23 15:27:47,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:27:47,831 INFO L471 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-07-23 15:27:47,831 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 15:27:47,831 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-07-23 15:27:47,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-07-23 15:27:47,832 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:27:47,832 INFO L353 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-07-23 15:27:47,833 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:27:47,833 INFO L82 PathProgramCache]: Analyzing trace with hash -215522787, now seen corresponding path program 3 times [2018-07-23 15:27:47,833 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:27:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:27:47,998 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:27:47,998 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:27:47,998 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-07-23 15:27:47,999 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 15:27:47,999 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 15:27:48,003 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-07-23 15:27:48,004 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2018-07-23 15:27:48,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:27:48,110 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-07-23 15:27:48,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 15:27:48,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-07-23 15:27:48,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:27:48,111 INFO L225 Difference]: With dead ends: 18 [2018-07-23 15:27:48,111 INFO L226 Difference]: Without dead ends: 16 [2018-07-23 15:27:48,112 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-07-23 15:27:48,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-23 15:27:48,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-07-23 15:27:48,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-07-23 15:27:48,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-07-23 15:27:48,118 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2018-07-23 15:27:48,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:27:48,119 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-07-23 15:27:48,119 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 15:27:48,119 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-07-23 15:27:48,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-23 15:27:48,120 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:27:48,120 INFO L353 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1] [2018-07-23 15:27:48,121 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:27:48,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1813447567, now seen corresponding path program 4 times [2018-07-23 15:27:48,121 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:27:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:27:48,391 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 15:27:48,391 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:27:48,392 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-07-23 15:27:48,393 INFO L450 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-07-23 15:27:48,393 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-07-23 15:27:48,394 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-07-23 15:27:48,394 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 10 states. [2018-07-23 15:27:48,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:27:48,706 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-07-23 15:27:48,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-23 15:27:48,707 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2018-07-23 15:27:48,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:27:48,710 INFO L225 Difference]: With dead ends: 24 [2018-07-23 15:27:48,710 INFO L226 Difference]: Without dead ends: 22 [2018-07-23 15:27:48,711 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2018-07-23 15:27:48,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-07-23 15:27:48,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2018-07-23 15:27:48,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-07-23 15:27:48,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-07-23 15:27:48,729 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2018-07-23 15:27:48,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:27:48,730 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-07-23 15:27:48,730 INFO L472 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-07-23 15:27:48,731 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-07-23 15:27:48,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-23 15:27:48,732 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 15:27:48,732 INFO L353 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1] [2018-07-23 15:27:48,733 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 15:27:48,733 INFO L82 PathProgramCache]: Analyzing trace with hash -1198220287, now seen corresponding path program 5 times [2018-07-23 15:27:48,733 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 15:27:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 15:27:48,928 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-07-23 15:27:48,928 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 15:27:48,928 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 15:27:48,929 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 15:27:48,929 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 15:27:48,929 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:27:48,930 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 4 states. [2018-07-23 15:27:48,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 15:27:48,948 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-07-23 15:27:48,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 15:27:48,949 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2018-07-23 15:27:48,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 15:27:48,950 INFO L225 Difference]: With dead ends: 19 [2018-07-23 15:27:48,950 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 15:27:48,951 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 15:27:48,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 15:27:48,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 15:27:48,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 15:27:48,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 15:27:48,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-07-23 15:27:48,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 15:27:48,953 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 15:27:48,953 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 15:27:48,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 15:27:48,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 15:27:48,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 15:27:49,005 INFO L417 ceAbstractionStarter]: At program point L463(lines 463 464) the Hoare annotation is: false [2018-07-23 15:27:49,005 INFO L421 ceAbstractionStarter]: For program point L371(lines 365 372) no Hoare annotation was computed. [2018-07-23 15:27:49,006 INFO L421 ceAbstractionStarter]: For program point L376(lines 376 388) no Hoare annotation was computed. [2018-07-23 15:27:49,006 INFO L421 ceAbstractionStarter]: For program point L331(lines 326 332) no Hoare annotation was computed. [2018-07-23 15:27:49,007 INFO L417 ceAbstractionStarter]: At program point L451(lines 451 460) the Hoare annotation is: (and (<= ULTIMATE.start_assert_~arg 1) (<= ~r1 0) (<= 1 ~mode1) (<= ~mode1 1) (<= 1 ~mode5) (<= 1 ULTIMATE.start_assert_~arg) (not (= ~p4_old ~nomsg)) (<= ~mode5 1) (<= 0 ~r1)) [2018-07-23 15:27:49,007 INFO L421 ceAbstractionStarter]: For program point L414(lines 408 415) no Hoare annotation was computed. [2018-07-23 15:27:49,007 INFO L421 ceAbstractionStarter]: For program point L336(lines 336 346) no Hoare annotation was computed. [2018-07-23 15:27:49,009 INFO L417 ceAbstractionStarter]: At program point L459(lines 309 459) the Hoare annotation is: (let ((.cse0 (<= ~r1 0)) (.cse1 (<= 0 ~r1))) (or (and (<= ULTIMATE.start_assert_~arg 1) .cse0 (<= 1 ~mode1) (<= ~mode1 1) (<= 1 ~mode5) (<= 1 ULTIMATE.start_assert_~arg) (not (= ~p4_old ~nomsg)) (<= ~mode5 1) .cse1) (and .cse0 (= ~mode5 (* 256 (div ~mode5 256))) (= ~mode1 (* 256 (div ~mode1 256))) (<= 0 ~send4) (<= ~send4 127) (= 0 (+ ~nomsg 1)) (= ~mode4 (* 256 (div ~mode4 256))) .cse1))) [2018-07-23 15:27:49,010 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 91 466) no Hoare annotation was computed. [2018-07-23 15:27:49,010 INFO L421 ceAbstractionStarter]: For program point L441(lines 436 442) no Hoare annotation was computed. [2018-07-23 15:27:49,010 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 91 466) the Hoare annotation is: true [2018-07-23 15:27:49,010 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 91 466) the Hoare annotation is: false [2018-07-23 15:27:49,010 INFO L421 ceAbstractionStarter]: For program point L351(lines 345 352) no Hoare annotation was computed. [2018-07-23 15:27:49,011 INFO L421 ceAbstractionStarter]: For program point L394(lines 387 395) no Hoare annotation was computed. [2018-07-23 15:27:49,011 INFO L421 ceAbstractionStarter]: For program point L399(lines 399 409) no Hoare annotation was computed. [2018-07-23 15:27:49,011 INFO L421 ceAbstractionStarter]: For program point L430(lines 430 437) no Hoare annotation was computed. [2018-07-23 15:27:49,011 INFO L421 ceAbstractionStarter]: For program point L356(lines 356 366) no Hoare annotation was computed. [2018-07-23 15:27:49,014 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startErr0AssertViolationASSERT(line 465) the Hoare annotation is: false [2018-07-23 15:27:49,014 INFO L421 ceAbstractionStarter]: For program point L316(lines 316 327) no Hoare annotation was computed. [2018-07-23 15:27:49,028 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 03:27:49 BoogieIcfgContainer [2018-07-23 15:27:49,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 15:27:49,031 INFO L168 Benchmark]: Toolchain (without parser) took 3338.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 264.4 MB). Peak memory consumption was 264.4 MB. Max. memory is 7.1 GB. [2018-07-23 15:27:49,034 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 15:27:49,035 INFO L168 Benchmark]: Boogie Preprocessor took 66.82 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 15:27:49,035 INFO L168 Benchmark]: RCFGBuilder took 945.76 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 15:27:49,037 INFO L168 Benchmark]: TraceAbstraction took 2321.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.2 MB). Peak memory consumption was 222.2 MB. Max. memory is 7.1 GB. [2018-07-23 15:27:49,042 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.82 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 945.76 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2321.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.2 MB). Peak memory consumption was 222.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 465]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 463]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: ((((((((assert_~arg <= 1 && ~r1 <= 0) && 1 <= ~mode1) && ~mode1 <= 1) && 1 <= ~mode5) && 1 <= assert_~arg) && !(~p4_old == ~nomsg)) && ~mode5 <= 1) && 0 <= ~r1) || (((((((~r1 <= 0 && ~mode5 == 256 * (~mode5 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && 0 <= ~send4) && ~send4 <= 127) && 0 == ~nomsg + 1) && ~mode4 == 256 * (~mode4 / 256)) && 0 <= ~r1) - InvariantResult [Line: 451]: Loop Invariant Derived loop invariant: (((((((assert_~arg <= 1 && ~r1 <= 0) && 1 <= ~mode1) && ~mode1 <= 1) && 1 <= ~mode5) && 1 <= assert_~arg) && !(~p4_old == ~nomsg)) && ~mode5 <= 1) && 0 <= ~r1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 6 OverallIterations, 8 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 25 SDslu, 41 SDs, 0 SdLazy, 132 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 102 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 5175 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 55/106 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_15-27-49-071.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c_11.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_15-27-49-071.csv Received shutdown request...