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_compound_exp_cong.epf -i ../../../trunk/examples/programs/real-life/tcas-correct.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 15:07:39,326 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 15:07:39,329 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 15:07:39,346 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-03 15:07:39,407 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2018-12-03 15:07:39,432 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 15:07:39,432 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 15:07:39,433 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 15:07:39,433 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 15:07:39,434 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 15:07:39,435 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 15:07:39,435 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 15:07:39,435 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 15:07:39,435 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 15:07:39,435 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 15:07:39,436 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 15:07:39,436 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 15:07:39,436 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 15:07:39,436 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 15:07:39,437 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 15:07:39,437 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 15:07:39,438 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 15:07:39,439 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 15:07:39,440 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 15:07:39,440 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 15:07:39,440 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 15:07:39,440 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 15:07:39,440 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 15:07:39,441 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 15:07:39,441 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 15:07:39,441 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 15:07:39,441 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 15:07:39,441 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 15:07:39,441 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 15:07:39,442 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 15:07:39,442 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 15:07:39,442 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 15:07:39,442 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 15:07:39,442 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 15:07:39,443 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 15:07:39,443 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 15:07:39,443 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 15:07:39,443 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 15:07:39,444 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 15:07:39,444 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 15:07:39,444 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 15:07:39,479 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 15:07:39,494 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 15:07:39,500 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 15:07:39,501 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 15:07:39,502 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 15:07:39,504 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/tcas-correct.bpl [2018-12-03 15:07:39,504 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/tcas-correct.bpl' [2018-12-03 15:07:39,547 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 15:07:39,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 15:07:39,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 15:07:39,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 15:07:39,550 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 15:07:39,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "tcas-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:39" (1/1) ... [2018-12-03 15:07:39,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "tcas-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:39" (1/1) ... [2018-12-03 15:07:39,587 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-03 15:07:39,587 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-03 15:07:39,587 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-03 15:07:39,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 15:07:39,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 15:07:39,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 15:07:39,591 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 15:07:39,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "tcas-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:39" (1/1) ... [2018-12-03 15:07:39,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "tcas-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:39" (1/1) ... [2018-12-03 15:07:39,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "tcas-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:39" (1/1) ... [2018-12-03 15:07:39,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "tcas-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:39" (1/1) ... [2018-12-03 15:07:39,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "tcas-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:39" (1/1) ... [2018-12-03 15:07:39,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "tcas-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:39" (1/1) ... [2018-12-03 15:07:39,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "tcas-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:39" (1/1) ... [2018-12-03 15:07:39,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 15:07:39,618 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 15:07:39,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 15:07:39,619 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 15:07:39,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "tcas-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:39" (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 [2018-12-03 15:07:39,686 INFO L124 BoogieDeclarations]: Specification and implementation of procedure alt_sep_test given in one single declaration [2018-12-03 15:07:39,687 INFO L130 BoogieDeclarations]: Found specification of procedure alt_sep_test [2018-12-03 15:07:39,687 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_sep_test [2018-12-03 15:07:40,173 INFO L272 CfgBuilder]: Using library mode [2018-12-03 15:07:40,173 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 15:07:40,174 INFO L202 PluginConnector]: Adding new model tcas-correct.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:07:40 BoogieIcfgContainer [2018-12-03 15:07:40,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 15:07:40,175 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 15:07:40,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 15:07:40,179 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 15:07:40,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "tcas-correct.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:39" (1/2) ... [2018-12-03 15:07:40,181 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d33637 and model type tcas-correct.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:07:40, skipping insertion in model container [2018-12-03 15:07:40,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "tcas-correct.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:07:40" (2/2) ... [2018-12-03 15:07:40,184 INFO L112 eAbstractionObserver]: Analyzing ICFG tcas-correct.bpl [2018-12-03 15:07:40,195 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 15:07:40,205 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 15:07:40,225 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 15:07:40,268 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 15:07:40,268 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 15:07:40,268 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 15:07:40,268 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 15:07:40,269 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 15:07:40,269 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 15:07:40,269 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 15:07:40,269 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 15:07:40,287 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-12-03 15:07:40,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 15:07:40,295 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:07:40,299 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 15:07:40,304 INFO L423 AbstractCegarLoop]: === Iteration 1 === [alt_sep_testErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 15:07:40,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:07:40,313 INFO L82 PathProgramCache]: Analyzing trace with hash 2065828713, now seen corresponding path program 1 times [2018-12-03 15:07:40,316 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:07:40,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:40,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:07:40,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:40,369 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:07:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:07:40,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:07:40,569 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 15:07:40,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 15:07:40,570 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 15:07:40,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 15:07:40,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 15:07:40,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 15:07:40,588 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2018-12-03 15:07:40,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:07:40,889 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2018-12-03 15:07:40,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 15:07:40,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-03 15:07:40,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:07:40,903 INFO L225 Difference]: With dead ends: 32 [2018-12-03 15:07:40,903 INFO L226 Difference]: Without dead ends: 10 [2018-12-03 15:07:40,907 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-03 15:07:40,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-12-03 15:07:40,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-12-03 15:07:40,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-12-03 15:07:40,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2018-12-03 15:07:40,941 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 9 [2018-12-03 15:07:40,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:07:40,942 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-12-03 15:07:40,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 15:07:40,942 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2018-12-03 15:07:40,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 15:07:40,943 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:07:40,943 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 15:07:40,943 INFO L423 AbstractCegarLoop]: === Iteration 2 === [alt_sep_testErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 15:07:40,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:07:40,944 INFO L82 PathProgramCache]: Analyzing trace with hash 2067675755, now seen corresponding path program 1 times [2018-12-03 15:07:40,944 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:07:40,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:40,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:07:40,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:40,946 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:07:40,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:07:41,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:07:41,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 15:07:41,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-03 15:07:41,092 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 15:07:41,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 15:07:41,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 15:07:41,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-03 15:07:41,096 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 5 states. [2018-12-03 15:07:41,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:07:41,239 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-12-03 15:07:41,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 15:07:41,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-03 15:07:41,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:07:41,240 INFO L225 Difference]: With dead ends: 13 [2018-12-03 15:07:41,241 INFO L226 Difference]: Without dead ends: 10 [2018-12-03 15:07:41,242 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-12-03 15:07:41,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-12-03 15:07:41,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-12-03 15:07:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-12-03 15:07:41,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2018-12-03 15:07:41,245 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2018-12-03 15:07:41,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:07:41,245 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2018-12-03 15:07:41,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 15:07:41,246 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-12-03 15:07:41,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 15:07:41,247 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:07:41,247 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 15:07:41,251 INFO L423 AbstractCegarLoop]: === Iteration 3 === [alt_sep_testErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 15:07:41,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:07:41,252 INFO L82 PathProgramCache]: Analyzing trace with hash 2067677677, now seen corresponding path program 1 times [2018-12-03 15:07:41,252 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:07:41,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:41,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:07:41,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:41,255 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:07:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:07:41,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:07:41,369 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 15:07:41,369 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 15:07:41,369 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 15:07:41,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 15:07:41,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 15:07:41,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 15:07:41,371 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 5 states. [2018-12-03 15:07:41,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:07:41,420 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-12-03 15:07:41,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 15:07:41,422 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-12-03 15:07:41,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:07:41,423 INFO L225 Difference]: With dead ends: 10 [2018-12-03 15:07:41,423 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 15:07:41,423 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-03 15:07:41,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 15:07:41,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 15:07:41,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 15:07:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 15:07:41,425 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-12-03 15:07:41,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:07:41,425 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 15:07:41,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 15:07:41,425 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 15:07:41,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 15:07:41,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 15:07:41,435 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 68) no Hoare annotation was computed. [2018-12-03 15:07:41,435 INFO L448 ceAbstractionStarter]: For program point alt_sep_testEXIT(lines 3 115) no Hoare annotation was computed. [2018-12-03 15:07:41,435 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 99) no Hoare annotation was computed. [2018-12-03 15:07:41,436 INFO L448 ceAbstractionStarter]: For program point L64-2(lines 64 68) no Hoare annotation was computed. [2018-12-03 15:07:41,436 INFO L448 ceAbstractionStarter]: For program point L95-2(lines 95 99) no Hoare annotation was computed. [2018-12-03 15:07:41,436 INFO L448 ceAbstractionStarter]: For program point alt_sep_testErr0ASSERT_VIOLATIONASSERT(line 103) no Hoare annotation was computed. [2018-12-03 15:07:41,436 INFO L448 ceAbstractionStarter]: For program point L108(lines 108 112) no Hoare annotation was computed. [2018-12-03 15:07:41,436 INFO L448 ceAbstractionStarter]: For program point L106(lines 106 112) no Hoare annotation was computed. [2018-12-03 15:07:41,436 INFO L448 ceAbstractionStarter]: For program point L108-2(lines 104 112) no Hoare annotation was computed. [2018-12-03 15:07:41,437 INFO L448 ceAbstractionStarter]: For program point L104(lines 104 112) no Hoare annotation was computed. [2018-12-03 15:07:41,437 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 114) no Hoare annotation was computed. [2018-12-03 15:07:41,437 INFO L448 ceAbstractionStarter]: For program point L61-2(lines 3 115) no Hoare annotation was computed. [2018-12-03 15:07:41,437 INFO L448 ceAbstractionStarter]: For program point alt_sep_testENTRY(lines 3 115) no Hoare annotation was computed. [2018-12-03 15:07:41,437 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 86) no Hoare annotation was computed. [2018-12-03 15:07:41,437 INFO L448 ceAbstractionStarter]: For program point L82-2(lines 82 86) no Hoare annotation was computed. [2018-12-03 15:07:41,438 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-03 15:07:41,441 INFO L202 PluginConnector]: Adding new model tcas-correct.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:07:41 BoogieIcfgContainer [2018-12-03 15:07:41,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 15:07:41,442 INFO L168 Benchmark]: Toolchain (without parser) took 1894.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-12-03 15:07:41,444 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 15:07:41,445 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.63 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 15:07:41,446 INFO L168 Benchmark]: Boogie Preprocessor took 27.08 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 15:07:41,447 INFO L168 Benchmark]: RCFGBuilder took 555.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 15:07:41,448 INFO L168 Benchmark]: TraceAbstraction took 1265.79 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-12-03 15:07:41,452 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 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.63 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.08 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 555.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1265.79 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 69 SDslu, 31 SDs, 0 SdLazy, 41 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 560 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...