java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/eureka_01.i_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2eb0a67 [2018-10-03 08:43:26,398 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-03 08:43:26,400 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-03 08:43:26,419 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-03 08:43:26,420 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-03 08:43:26,421 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-03 08:43:26,423 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-03 08:43:26,426 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-03 08:43:26,428 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-03 08:43:26,431 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-03 08:43:26,432 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-03 08:43:26,485 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-03 08:43:26,510 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-03 08:43:26,511 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-03 08:43:26,512 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-03 08:43:26,512 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-03 08:43:26,513 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-03 08:43:26,513 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-03 08:43:26,514 INFO L133 SettingsManager]: * Use SBE=true [2018-10-03 08:43:26,514 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-03 08:43:26,514 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-03 08:43:26,514 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-03 08:43:26,514 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-03 08:43:26,515 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-03 08:43:26,515 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-03 08:43:26,515 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-03 08:43:26,516 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-03 08:43:26,517 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-03 08:43:26,517 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-03 08:43:26,517 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-03 08:43:26,517 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-03 08:43:26,517 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-03 08:43:26,518 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-03 08:43:26,518 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-03 08:43:26,518 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-03 08:43:26,518 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-03 08:43:26,520 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-03 08:43:26,520 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-03 08:43:26,520 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-03 08:43:26,520 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-03 08:43:26,520 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-03 08:43:26,521 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-03 08:43:26,578 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-03 08:43:26,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-03 08:43:26,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-03 08:43:26,601 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-03 08:43:26,602 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-03 08:43:26,603 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/eureka_01.i_6.bpl [2018-10-03 08:43:26,603 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/eureka_01.i_6.bpl' [2018-10-03 08:43:26,692 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-03 08:43:26,695 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-03 08:43:26,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-03 08:43:26,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-03 08:43:26,697 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-03 08:43:26,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 08:43:26" (1/1) ... [2018-10-03 08:43:26,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 08:43:26" (1/1) ... [2018-10-03 08:43:26,743 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-03 08:43:26,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-03 08:43:26,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-03 08:43:26,744 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-03 08:43:26,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 08:43:26" (1/1) ... [2018-10-03 08:43:26,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 08:43:26" (1/1) ... [2018-10-03 08:43:26,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 08:43:26" (1/1) ... [2018-10-03 08:43:26,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 08:43:26" (1/1) ... [2018-10-03 08:43:26,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 08:43:26" (1/1) ... [2018-10-03 08:43:26,768 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 08:43:26" (1/1) ... [2018-10-03 08:43:26,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 08:43:26" (1/1) ... [2018-10-03 08:43:26,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-03 08:43:26,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-03 08:43:26,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-03 08:43:26,773 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-03 08:43:26,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 08:43:26" (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 [2018-10-03 08:43:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-03 08:43:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-03 08:43:27,299 INFO L340 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-03 08:43:27,300 INFO L202 PluginConnector]: Adding new model eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 08:43:27 BoogieIcfgContainer [2018-10-03 08:43:27,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-03 08:43:27,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-03 08:43:27,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-03 08:43:27,305 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-03 08:43:27,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 08:43:26" (1/2) ... [2018-10-03 08:43:27,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd858d and model type eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 08:43:27, skipping insertion in model container [2018-10-03 08:43:27,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 08:43:27" (2/2) ... [2018-10-03 08:43:27,309 INFO L112 eAbstractionObserver]: Analyzing ICFG eureka_01.i_6.bpl [2018-10-03 08:43:27,319 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-03 08:43:27,328 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-03 08:43:27,377 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-03 08:43:27,378 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-03 08:43:27,378 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-03 08:43:27,378 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-03 08:43:27,378 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-03 08:43:27,378 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-03 08:43:27,378 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-03 08:43:27,379 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-03 08:43:27,379 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-03 08:43:27,394 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-10-03 08:43:27,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-03 08:43:27,401 INFO L367 BasicCegarLoop]: Found error trace [2018-10-03 08:43:27,402 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-03 08:43:27,404 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-03 08:43:27,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-03 08:43:27,410 INFO L82 PathProgramCache]: Analyzing trace with hash 148998227, now seen corresponding path program 1 times [2018-10-03 08:43:27,412 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-03 08:43:27,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-03 08:43:27,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-03 08:43:27,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-03 08:43:27,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-03 08:43:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 08:43:27,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 08:43:27,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-03 08:43:27,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-03 08:43:27,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-03 08:43:27,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-03 08:43:27,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-03 08:43:27,712 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2018-10-03 08:43:27,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-03 08:43:27,864 INFO L93 Difference]: Finished difference Result 23 states and 30 transitions. [2018-10-03 08:43:27,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-03 08:43:27,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-10-03 08:43:27,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-03 08:43:27,877 INFO L225 Difference]: With dead ends: 23 [2018-10-03 08:43:27,877 INFO L226 Difference]: Without dead ends: 19 [2018-10-03 08:43:27,881 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-03 08:43:27,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-10-03 08:43:27,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2018-10-03 08:43:27,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-10-03 08:43:27,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-10-03 08:43:27,915 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2018-10-03 08:43:27,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-03 08:43:27,916 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-10-03 08:43:27,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-03 08:43:27,916 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-10-03 08:43:27,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-03 08:43:27,917 INFO L367 BasicCegarLoop]: Found error trace [2018-10-03 08:43:27,917 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-03 08:43:27,917 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-03 08:43:27,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-03 08:43:27,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1453301261, now seen corresponding path program 1 times [2018-10-03 08:43:27,918 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-03 08:43:27,918 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-03 08:43:27,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-03 08:43:27,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-03 08:43:27,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-03 08:43:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 08:43:28,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-03 08:43:28,113 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-03 08:43:28,114 INFO L227 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 [2018-10-03 08:43:28,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-03 08:43:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 08:43:28,169 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-03 08:43:28,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-03 08:43:28,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-03 08:43:28,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2018-10-03 08:43:28,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-03 08:43:28,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-03 08:43:28,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-03 08:43:28,382 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 6 states. [2018-10-03 08:43:28,564 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-10-03 08:43:28,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-03 08:43:29,000 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2018-10-03 08:43:29,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-03 08:43:29,001 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-10-03 08:43:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-03 08:43:29,002 INFO L225 Difference]: With dead ends: 37 [2018-10-03 08:43:29,002 INFO L226 Difference]: Without dead ends: 27 [2018-10-03 08:43:29,003 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-10-03 08:43:29,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-10-03 08:43:29,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2018-10-03 08:43:29,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-03 08:43:29,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2018-10-03 08:43:29,012 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 10 [2018-10-03 08:43:29,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-03 08:43:29,013 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2018-10-03 08:43:29,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-03 08:43:29,013 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2018-10-03 08:43:29,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-03 08:43:29,014 INFO L367 BasicCegarLoop]: Found error trace [2018-10-03 08:43:29,018 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-10-03 08:43:29,018 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-03 08:43:29,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-03 08:43:29,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1290090239, now seen corresponding path program 1 times [2018-10-03 08:43:29,019 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-03 08:43:29,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-03 08:43:29,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-03 08:43:29,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-03 08:43:29,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-03 08:43:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-03 08:43:29,158 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-03 08:43:29,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-03 08:43:29,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-03 08:43:29,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-03 08:43:29,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-03 08:43:29,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-03 08:43:29,160 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 3 states. [2018-10-03 08:43:29,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-03 08:43:29,163 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2018-10-03 08:43:29,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-03 08:43:29,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-10-03 08:43:29,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-03 08:43:29,168 INFO L225 Difference]: With dead ends: 17 [2018-10-03 08:43:29,168 INFO L226 Difference]: Without dead ends: 0 [2018-10-03 08:43:29,169 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-03 08:43:29,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-03 08:43:29,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-03 08:43:29,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-03 08:43:29,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-03 08:43:29,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-10-03 08:43:29,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-03 08:43:29,170 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-03 08:43:29,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-03 08:43:29,171 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-03 08:43:29,171 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-03 08:43:29,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-03 08:43:29,277 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 3 176) no Hoare annotation was computed. [2018-10-03 08:43:29,278 INFO L421 ceAbstractionStarter]: At program point L155(lines 155 174) the Hoare annotation is: false [2018-10-03 08:43:29,278 INFO L421 ceAbstractionStarter]: At program point L114(lines 97 114) the Hoare annotation is: (and (<= 5 ULTIMATE.start_main_~nodecount~4) (<= ULTIMATE.start_main_~source~4 ULTIMATE.start_main_~i~4) (< ULTIMATE.start_main_~i~4 (+ ULTIMATE.start_main_~source~4 1)) (<= 20 ULTIMATE.start_main_~edgecount~4) (= ULTIMATE.start_main_~i~4 0)) [2018-10-03 08:43:29,278 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 175) no Hoare annotation was computed. [2018-10-03 08:43:29,278 INFO L421 ceAbstractionStarter]: At program point L133(lines 133 164) the Hoare annotation is: false [2018-10-03 08:43:29,278 INFO L421 ceAbstractionStarter]: At program point L100(lines 100 107) the Hoare annotation is: (and (<= 5 ULTIMATE.start_main_~nodecount~4) (<= ULTIMATE.start_main_~source~4 ULTIMATE.start_main_~i~4) (< ULTIMATE.start_main_~i~4 (+ ULTIMATE.start_main_~source~4 1)) (<= 20 ULTIMATE.start_main_~edgecount~4) (= ULTIMATE.start_main_~i~4 0)) [2018-10-03 08:43:29,278 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 3 176) no Hoare annotation was computed. [2018-10-03 08:43:29,279 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 3 176) no Hoare annotation was computed. [2018-10-03 08:43:29,279 INFO L421 ceAbstractionStarter]: At program point L117(lines 117 124) the Hoare annotation is: false [2018-10-03 08:43:29,279 INFO L421 ceAbstractionStarter]: At program point L144(lines 123 144) the Hoare annotation is: false [2018-10-03 08:43:29,279 INFO L421 ceAbstractionStarter]: At program point L173(lines 127 173) the Hoare annotation is: false [2018-10-03 08:43:29,279 INFO L421 ceAbstractionStarter]: At program point L163(lines 106 163) the Hoare annotation is: false [2018-10-03 08:43:29,279 INFO L421 ceAbstractionStarter]: At program point L130(lines 130 145) the Hoare annotation is: false [2018-10-03 08:43:29,290 INFO L202 PluginConnector]: Adding new model eureka_01.i_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 08:43:29 BoogieIcfgContainer [2018-10-03 08:43:29,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-03 08:43:29,291 INFO L168 Benchmark]: Toolchain (without parser) took 2598.46 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: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. [2018-10-03 08:43:29,292 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-10-03 08:43:29,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.18 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. [2018-10-03 08:43:29,294 INFO L168 Benchmark]: Boogie Preprocessor took 28.14 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. [2018-10-03 08:43:29,295 INFO L168 Benchmark]: RCFGBuilder took 528.35 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. [2018-10-03 08:43:29,296 INFO L168 Benchmark]: TraceAbstraction took 1988.34 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: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. [2018-10-03 08:43:29,301 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.18 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 28.14 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 528.35 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 1988.34 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: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 175]: 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: 117]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: (((5 <= main_~nodecount~4 && main_~source~4 <= main_~i~4) && main_~i~4 < main_~source~4 + 1) && 20 <= main_~edgecount~4) && main_~i~4 == 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: (((5 <= main_~nodecount~4 && main_~source~4 <= main_~i~4) && main_~i~4 < main_~source~4 + 1) && 20 <= main_~edgecount~4) && main_~i~4 == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 49 SDslu, 17 SDs, 0 SdLazy, 39 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=2, 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, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 43 HoareAnnotationTreeSize, 9 FomulaSimplifications, 22 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 1088 SizeOfPredicates, 1 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 10/12 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/eureka_01.i_6.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-03_08-43-29-318.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/eureka_01.i_6.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-03_08-43-29-318.csv Received shutdown request...