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/diamond2.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f [2018-10-04 12:22:09,922 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 12:22:09,924 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 12:22:09,937 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 12:22:09,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 12:22:09,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 12:22:09,940 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 12:22:09,941 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 12:22:09,943 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 12:22:09,944 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 12:22:09,945 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-04 12:22:09,968 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 [2018-10-04 12:22:09,983 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 12:22:09,983 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 12:22:09,984 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 12:22:09,984 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 12:22:09,985 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 12:22:09,985 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 12:22:09,985 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 12:22:09,985 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 12:22:09,985 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 12:22:09,986 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 12:22:09,986 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 12:22:09,986 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 12:22:09,986 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 12:22:09,986 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 12:22:09,986 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 12:22:09,987 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 12:22:09,987 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 12:22:09,987 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 12:22:09,987 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 12:22:09,987 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 12:22:09,988 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 12:22:09,988 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 12:22:09,988 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 12:22:09,988 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 12:22:09,988 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 12:22:09,989 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 12:22:09,989 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 12:22:09,989 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 12:22:09,989 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 12:22:09,989 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 12:22:10,031 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 12:22:10,044 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 12:22:10,047 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 12:22:10,049 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 12:22:10,050 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 12:22:10,050 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/diamond2.i_4.bpl [2018-10-04 12:22:10,051 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/diamond2.i_4.bpl' [2018-10-04 12:22:10,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 12:22:10,108 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 12:22:10,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 12:22:10,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 12:22:10,109 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 12:22:10,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:22:10" (1/1) ... [2018-10-04 12:22:10,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:22:10" (1/1) ... [2018-10-04 12:22:10,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 12:22:10,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 12:22:10,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 12:22:10,150 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 12:22:10,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:22:10" (1/1) ... [2018-10-04 12:22:10,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:22:10" (1/1) ... [2018-10-04 12:22:10,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:22:10" (1/1) ... [2018-10-04 12:22:10,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:22:10" (1/1) ... [2018-10-04 12:22:10,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:22:10" (1/1) ... [2018-10-04 12:22:10,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:22:10" (1/1) ... [2018-10-04 12:22:10,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:22:10" (1/1) ... [2018-10-04 12:22:10,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 12:22:10,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 12:22:10,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 12:22:10,174 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 12:22:10,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:22:10" (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 [2018-10-04 12:22:10,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 12:22:10,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 12:22:10,524 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 12:22:10,524 INFO L202 PluginConnector]: Adding new model diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:22:10 BoogieIcfgContainer [2018-10-04 12:22:10,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 12:22:10,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 12:22:10,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 12:22:10,535 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 12:22:10,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:22:10" (1/2) ... [2018-10-04 12:22:10,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c61451 and model type diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 12:22:10, skipping insertion in model container [2018-10-04 12:22:10,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:22:10" (2/2) ... [2018-10-04 12:22:10,539 INFO L112 eAbstractionObserver]: Analyzing ICFG diamond2.i_4.bpl [2018-10-04 12:22:10,550 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 12:22:10,561 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 12:22:10,616 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 12:22:10,617 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 12:22:10,617 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 12:22:10,618 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 12:22:10,618 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 12:22:10,618 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 12:22:10,618 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 12:22:10,618 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 12:22:10,619 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 12:22:10,637 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-10-04 12:22:10,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 12:22:10,653 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:22:10,654 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-04 12:22:10,655 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:22:10,662 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:22:10,663 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-10-04 12:22:10,666 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:22:10,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:22:10,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:10,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:22:10,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:22:10,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:10,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 12:22:10,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-04 12:22:10,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 12:22:10,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 12:22:10,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 12:22:10,872 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-10-04 12:22:10,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:22:10,925 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-10-04 12:22:10,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 12:22:10,927 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-10-04 12:22:10,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:22:10,937 INFO L225 Difference]: With dead ends: 11 [2018-10-04 12:22:10,937 INFO L226 Difference]: Without dead ends: 7 [2018-10-04 12:22:10,941 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 [2018-10-04 12:22:10,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-10-04 12:22:10,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-04 12:22:10,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-04 12:22:10,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-10-04 12:22:10,975 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-10-04 12:22:10,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:22:10,975 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-10-04 12:22:10,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 12:22:10,976 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-10-04 12:22:10,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 12:22:10,976 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:22:10,976 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-10-04 12:22:10,977 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:22:10,977 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:22:10,977 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-10-04 12:22:10,977 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:22:10,977 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:22:10,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:10,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:22:10,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:10,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:22:11,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:11,175 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:22:11,175 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 [2018-10-04 12:22:11,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:22:11,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:22:11,241 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:22:11,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:11,353 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:22:11,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-10-04 12:22:11,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-04 12:22:11,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-04 12:22:11,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-04 12:22:11,355 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-10-04 12:22:11,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:22:11,431 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-10-04 12:22:11,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-04 12:22:11,431 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-10-04 12:22:11,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:22:11,432 INFO L225 Difference]: With dead ends: 11 [2018-10-04 12:22:11,432 INFO L226 Difference]: Without dead ends: 9 [2018-10-04 12:22:11,434 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-04 12:22:11,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-04 12:22:11,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-04 12:22:11,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-04 12:22:11,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-04 12:22:11,441 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-10-04 12:22:11,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:22:11,441 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-10-04 12:22:11,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-04 12:22:11,442 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-04 12:22:11,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 12:22:11,444 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:22:11,444 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-10-04 12:22:11,445 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:22:11,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:22:11,445 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-10-04 12:22:11,445 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:22:11,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:22:11,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:11,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:22:11,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:22:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:11,624 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:22:11,625 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-04 12:22:11,634 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-04 12:22:11,657 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-04 12:22:11,657 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:22:11,659 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:22:11,676 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:11,696 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:22:11,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-10-04 12:22:11,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-04 12:22:11,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-04 12:22:11,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-04 12:22:11,698 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-10-04 12:22:11,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:22:11,801 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-10-04 12:22:11,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-04 12:22:11,802 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-10-04 12:22:11,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:22:11,803 INFO L225 Difference]: With dead ends: 13 [2018-10-04 12:22:11,803 INFO L226 Difference]: Without dead ends: 11 [2018-10-04 12:22:11,804 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-04 12:22:11,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-10-04 12:22:11,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-10-04 12:22:11,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-10-04 12:22:11,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-10-04 12:22:11,809 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-10-04 12:22:11,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:22:11,809 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-10-04 12:22:11,809 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-04 12:22:11,809 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-10-04 12:22:11,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 12:22:11,810 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:22:11,810 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-10-04 12:22:11,810 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:22:11,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:22:11,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1946815861, now seen corresponding path program 3 times [2018-10-04 12:22:11,811 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:22:11,811 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:22:11,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:11,812 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:22:11,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:22:12,188 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:12,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:22:12,189 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-04 12:22:12,202 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-04 12:22:12,241 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-10-04 12:22:12,241 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:22:12,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:22:12,263 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:12,283 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:22:12,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-10-04 12:22:12,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-04 12:22:12,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-04 12:22:12,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-04 12:22:12,285 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 6 states. [2018-10-04 12:22:12,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:22:12,334 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-10-04 12:22:12,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-04 12:22:12,335 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-10-04 12:22:12,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:22:12,336 INFO L225 Difference]: With dead ends: 15 [2018-10-04 12:22:12,337 INFO L226 Difference]: Without dead ends: 13 [2018-10-04 12:22:12,337 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-04 12:22:12,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-10-04 12:22:12,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-10-04 12:22:12,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-10-04 12:22:12,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-10-04 12:22:12,342 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-10-04 12:22:12,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:22:12,342 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-10-04 12:22:12,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-04 12:22:12,343 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-10-04 12:22:12,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 12:22:12,343 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:22:12,343 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1] [2018-10-04 12:22:12,344 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:22:12,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:22:12,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1715646545, now seen corresponding path program 4 times [2018-10-04 12:22:12,345 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:22:12,345 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:22:12,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:12,347 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:22:12,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:22:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:12,542 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:22:12,542 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-04 12:22:12,551 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-04 12:22:12,590 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-04 12:22:12,590 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:22:12,592 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:22:12,659 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:12,680 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:22:12,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-10-04 12:22:12,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-04 12:22:12,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-04 12:22:12,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-04 12:22:12,682 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 7 states. [2018-10-04 12:22:12,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:22:12,809 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-10-04 12:22:12,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-04 12:22:12,810 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-10-04 12:22:12,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:22:12,811 INFO L225 Difference]: With dead ends: 17 [2018-10-04 12:22:12,811 INFO L226 Difference]: Without dead ends: 15 [2018-10-04 12:22:12,812 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-04 12:22:12,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-10-04 12:22:12,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-10-04 12:22:12,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-04 12:22:12,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-10-04 12:22:12,816 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2018-10-04 12:22:12,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:22:12,816 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-10-04 12:22:12,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-04 12:22:12,816 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-10-04 12:22:12,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-04 12:22:12,817 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:22:12,817 INFO L375 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1] [2018-10-04 12:22:12,818 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:22:12,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:22:12,818 INFO L82 PathProgramCache]: Analyzing trace with hash 531164009, now seen corresponding path program 5 times [2018-10-04 12:22:12,818 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:22:12,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:22:12,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:12,819 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:22:12,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:22:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:13,167 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:22:13,167 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-04 12:22:13,184 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-10-04 12:22:13,225 INFO L242 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-10-04 12:22:13,225 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:22:13,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:22:13,235 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:13,261 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:22:13,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-10-04 12:22:13,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-04 12:22:13,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-04 12:22:13,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-04 12:22:13,263 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 8 states. [2018-10-04 12:22:13,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:22:13,407 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-10-04 12:22:13,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-04 12:22:13,410 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-10-04 12:22:13,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:22:13,410 INFO L225 Difference]: With dead ends: 19 [2018-10-04 12:22:13,410 INFO L226 Difference]: Without dead ends: 17 [2018-10-04 12:22:13,411 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-04 12:22:13,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-10-04 12:22:13,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-10-04 12:22:13,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-04 12:22:13,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-10-04 12:22:13,416 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2018-10-04 12:22:13,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:22:13,416 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-10-04 12:22:13,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-04 12:22:13,416 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-10-04 12:22:13,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-10-04 12:22:13,417 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:22:13,417 INFO L375 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1] [2018-10-04 12:22:13,417 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:22:13,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:22:13,418 INFO L82 PathProgramCache]: Analyzing trace with hash -652443485, now seen corresponding path program 6 times [2018-10-04 12:22:13,418 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:22:13,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:22:13,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:13,419 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 12:22:13,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:22:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:22:17,874 WARN L178 SmtUtils]: Spent 4.27 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-10-04 12:22:22,051 WARN L178 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-10-04 12:22:26,152 WARN L178 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-10-04 12:22:30,234 WARN L178 SmtUtils]: Spent 4.06 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-10-04 12:22:32,324 WARN L178 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-10-04 12:22:34,434 WARN L178 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2018-10-04 12:22:34,438 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:34,438 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:22:34,438 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-04 12:22:34,449 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-10-04 12:22:34,479 INFO L242 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-10-04 12:22:34,479 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:22:34,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:22:34,572 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:22:34,601 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:22:34,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2018-10-04 12:22:34,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-04 12:22:34,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-04 12:22:34,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-10-04 12:22:34,603 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 11 states. [2018-10-04 12:22:34,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:22:34,819 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-10-04 12:22:34,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-04 12:22:34,819 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 16 [2018-10-04 12:22:34,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:22:34,820 INFO L225 Difference]: With dead ends: 19 [2018-10-04 12:22:34,820 INFO L226 Difference]: Without dead ends: 0 [2018-10-04 12:22:34,821 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 20.9s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-10-04 12:22:34,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-04 12:22:34,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-04 12:22:34,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-04 12:22:34,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-04 12:22:34,823 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-10-04 12:22:34,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:22:34,823 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-04 12:22:34,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-04 12:22:34,824 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-04 12:22:34,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-04 12:22:34,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-04 12:22:35,088 WARN L178 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-10-04 12:22:35,273 WARN L178 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2018-10-04 12:22:35,276 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 57) no Hoare annotation was computed. [2018-10-04 12:22:35,277 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 57) no Hoare annotation was computed. [2018-10-04 12:22:35,277 INFO L421 ceAbstractionStarter]: At program point L29(lines 29 55) the Hoare annotation is: false [2018-10-04 12:22:35,277 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 57) no Hoare annotation was computed. [2018-10-04 12:22:35,277 INFO L421 ceAbstractionStarter]: At program point L54(lines 16 54) the Hoare annotation is: (let ((.cse4 (div ULTIMATE.start_main_~y~5 2))) (let ((.cse2 (* 4294967296 (div (+ ULTIMATE.start_main_~y~5 (* (- 2) .cse4)) 4294967296))) (.cse3 (* 2 .cse4))) (let ((.cse1 (+ .cse2 .cse3 ULTIMATE.start_main_~x~5)) (.cse0 (<= ULTIMATE.start_main_~y~5 (+ .cse2 .cse3)))) (or (and (<= 19 ULTIMATE.start_main_~x~5) .cse0 (<= ULTIMATE.start_main_~x~5 19)) (and (<= ULTIMATE.start_main_~x~5 0) (<= 0 ULTIMATE.start_main_~x~5)) (and (<= 95 ULTIMATE.start_main_~x~5) (<= ULTIMATE.start_main_~x~5 95) .cse0) (and (<= 38 ULTIMATE.start_main_~x~5) (<= .cse1 (+ ULTIMATE.start_main_~y~5 38)) .cse0) (and (<= .cse1 (+ ULTIMATE.start_main_~y~5 114)) (<= 114 ULTIMATE.start_main_~x~5) .cse0) (and .cse0 (<= 76 ULTIMATE.start_main_~x~5) (<= ULTIMATE.start_main_~x~5 76)) (and (<= .cse1 (+ ULTIMATE.start_main_~y~5 57)) .cse0 (<= 57 ULTIMATE.start_main_~x~5)))))) [2018-10-04 12:22:35,278 INFO L421 ceAbstractionStarter]: At program point L19(lines 19 30) the Hoare annotation is: (let ((.cse4 (div ULTIMATE.start_main_~y~5 2))) (let ((.cse2 (* 4294967296 (div (+ ULTIMATE.start_main_~y~5 (* (- 2) .cse4)) 4294967296))) (.cse3 (* 2 .cse4))) (let ((.cse1 (+ .cse2 .cse3 ULTIMATE.start_main_~x~5)) (.cse0 (<= ULTIMATE.start_main_~y~5 (+ .cse2 .cse3)))) (or (and (<= 19 ULTIMATE.start_main_~x~5) .cse0 (<= ULTIMATE.start_main_~x~5 19)) (and (<= ULTIMATE.start_main_~x~5 0) (<= 0 ULTIMATE.start_main_~x~5)) (and (<= 95 ULTIMATE.start_main_~x~5) (<= ULTIMATE.start_main_~x~5 95) .cse0) (and (<= 38 ULTIMATE.start_main_~x~5) (<= .cse1 (+ ULTIMATE.start_main_~y~5 38)) .cse0) (and (<= .cse1 (+ ULTIMATE.start_main_~y~5 114)) (<= 114 ULTIMATE.start_main_~x~5) .cse0) (and .cse0 (<= 76 ULTIMATE.start_main_~x~5) (<= ULTIMATE.start_main_~x~5 76)) (and (<= .cse1 (+ ULTIMATE.start_main_~y~5 57)) .cse0 (<= 57 ULTIMATE.start_main_~x~5)))))) [2018-10-04 12:22:35,278 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 56) no Hoare annotation was computed. [2018-10-04 12:22:35,292 INFO L202 PluginConnector]: Adding new model diamond2.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 12:22:35 BoogieIcfgContainer [2018-10-04 12:22:35,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 12:22:35,293 INFO L168 Benchmark]: Toolchain (without parser) took 25186.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 288.2 MB). Peak memory consumption was 288.2 MB. Max. memory is 7.1 GB. [2018-10-04 12:22:35,294 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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. [2018-10-04 12:22:35,295 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.73 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. [2018-10-04 12:22:35,295 INFO L168 Benchmark]: Boogie Preprocessor took 23.53 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. [2018-10-04 12:22:35,296 INFO L168 Benchmark]: RCFGBuilder took 350.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-04 12:22:35,297 INFO L168 Benchmark]: TraceAbstraction took 24763.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 267.0 MB). Peak memory consumption was 267.0 MB. Max. memory is 7.1 GB. [2018-10-04 12:22:35,301 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 0.19 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 40.73 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 23.53 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 350.41 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24763.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 267.0 MB). Peak memory consumption was 267.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 56]: 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: 16]: Loop Invariant Derived loop invariant: (((((((19 <= main_~x~5 && main_~y~5 <= 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2)) && main_~x~5 <= 19) || (main_~x~5 <= 0 && 0 <= main_~x~5)) || ((95 <= main_~x~5 && main_~x~5 <= 95) && main_~y~5 <= 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2))) || ((38 <= main_~x~5 && 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2) + main_~x~5 <= main_~y~5 + 38) && main_~y~5 <= 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2))) || ((4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2) + main_~x~5 <= main_~y~5 + 114 && 114 <= main_~x~5) && main_~y~5 <= 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2))) || ((main_~y~5 <= 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2) && 76 <= main_~x~5) && main_~x~5 <= 76)) || ((4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2) + main_~x~5 <= main_~y~5 + 57 && main_~y~5 <= 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2)) && 57 <= main_~x~5) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((((19 <= main_~x~5 && main_~y~5 <= 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2)) && main_~x~5 <= 19) || (main_~x~5 <= 0 && 0 <= main_~x~5)) || ((95 <= main_~x~5 && main_~x~5 <= 95) && main_~y~5 <= 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2))) || ((38 <= main_~x~5 && 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2) + main_~x~5 <= main_~y~5 + 38) && main_~y~5 <= 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2))) || ((4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2) + main_~x~5 <= main_~y~5 + 114 && 114 <= main_~x~5) && main_~y~5 <= 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2))) || ((main_~y~5 <= 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2) && 76 <= main_~x~5) && main_~x~5 <= 76)) || ((4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2) + main_~x~5 <= main_~y~5 + 57 && main_~y~5 <= 4294967296 * ((main_~y~5 + -2 * (main_~y~5 / 2)) / 4294967296) + 2 * (main_~y~5 / 2)) && 57 <= main_~x~5) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 24.6s OverallTime, 7 OverallIterations, 7 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 0 SDslu, 140 SDs, 0 SdLazy, 187 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 58 SyntacticMatches, 7 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 22.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=6, 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 17 NumberOfFragments, 443 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 144 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 22.5s InterpolantComputationTime, 136 NumberOfCodeBlocks, 136 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 20105 SizeOfPredicates, 9 NumberOfNonLiveVariables, 204 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 0/224 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/diamond2.i_4.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_12-22-35-315.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/diamond2.i_4.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-04_12-22-35-315.csv Received shutdown request...