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/n.c11.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-133090d [2018-10-04 09:20:24,659 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 09:20:24,661 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 09:20:24,673 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 09:20:24,673 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 09:20:24,674 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 09:20:24,675 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 09:20:24,677 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 09:20:24,679 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 09:20:24,680 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 09:20:24,681 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 09:20:24,681 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 09:20:24,682 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 09:20:24,683 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 09:20:24,684 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 09:20:24,685 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 09:20:24,686 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 09:20:24,687 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 09:20:24,689 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 09:20:24,691 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 09:20:24,692 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 09:20:24,693 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 09:20:24,696 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-04 09:20:24,704 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 09:20:24,719 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 09:20:24,720 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 09:20:24,720 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 09:20:24,720 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 09:20:24,721 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 09:20:24,721 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 09:20:24,721 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 09:20:24,722 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 09:20:24,722 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 09:20:24,722 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 09:20:24,722 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 09:20:24,722 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 09:20:24,723 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 09:20:24,723 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 09:20:24,723 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 09:20:24,723 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 09:20:24,723 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 09:20:24,723 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 09:20:24,724 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 09:20:24,724 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 09:20:24,724 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 09:20:24,724 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 09:20:24,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 09:20:24,725 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 09:20:24,725 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 09:20:24,725 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 09:20:24,725 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 09:20:24,725 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 09:20:24,726 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 09:20:24,726 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 09:20:24,771 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 09:20:24,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 09:20:24,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 09:20:24,788 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 09:20:24,788 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 09:20:24,789 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/n.c11.i_3.bpl [2018-10-04 09:20:24,789 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/n.c11.i_3.bpl' [2018-10-04 09:20:24,846 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 09:20:24,848 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 09:20:24,849 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 09:20:24,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 09:20:24,849 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 09:20:24,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:24" (1/1) ... [2018-10-04 09:20:24,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:24" (1/1) ... [2018-10-04 09:20:24,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 09:20:24,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 09:20:24,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 09:20:24,893 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 09:20:24,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:24" (1/1) ... [2018-10-04 09:20:24,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:24" (1/1) ... [2018-10-04 09:20:24,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:24" (1/1) ... [2018-10-04 09:20:24,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:24" (1/1) ... [2018-10-04 09:20:24,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:24" (1/1) ... [2018-10-04 09:20:24,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:24" (1/1) ... [2018-10-04 09:20:24,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:24" (1/1) ... [2018-10-04 09:20:24,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 09:20:24,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 09:20:24,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 09:20:24,917 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 09:20:24,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:24" (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 09:20:24,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 09:20:24,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 09:20:25,216 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 09:20:25,216 INFO L202 PluginConnector]: Adding new model n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:20:25 BoogieIcfgContainer [2018-10-04 09:20:25,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 09:20:25,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 09:20:25,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 09:20:25,221 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 09:20:25,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:20:24" (1/2) ... [2018-10-04 09:20:25,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44a3df9d and model type n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 09:20:25, skipping insertion in model container [2018-10-04 09:20:25,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:20:25" (2/2) ... [2018-10-04 09:20:25,224 INFO L112 eAbstractionObserver]: Analyzing ICFG n.c11.i_3.bpl [2018-10-04 09:20:25,235 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 09:20:25,242 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 09:20:25,297 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 09:20:25,298 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 09:20:25,298 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 09:20:25,298 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 09:20:25,298 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 09:20:25,298 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 09:20:25,299 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 09:20:25,299 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 09:20:25,299 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 09:20:25,317 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-10-04 09:20:25,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 09:20:25,332 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:25,333 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-04 09:20:25,334 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:25,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:25,340 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-10-04 09:20:25,343 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:25,345 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:25,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:25,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:25,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:25,542 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 09:20:25,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:20:25,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-04 09:20:25,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 09:20:25,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 09:20:25,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 09:20:25,562 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-10-04 09:20:25,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:25,647 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-10-04 09:20:25,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 09:20:25,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-10-04 09:20:25,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:25,667 INFO L225 Difference]: With dead ends: 11 [2018-10-04 09:20:25,676 INFO L226 Difference]: Without dead ends: 7 [2018-10-04 09:20:25,685 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 09:20:25,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-10-04 09:20:25,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-04 09:20:25,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-04 09:20:25,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-10-04 09:20:25,726 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-10-04 09:20:25,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:25,727 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-10-04 09:20:25,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 09:20:25,727 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-10-04 09:20:25,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-04 09:20:25,728 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:25,728 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-10-04 09:20:25,728 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:25,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:25,729 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-10-04 09:20:25,729 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:25,729 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:25,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:25,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:25,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:26,010 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 09:20:26,010 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:20:26,010 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 09:20:26,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:26,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:20:26,085 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 09:20:26,106 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:20:26,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-10-04 09:20:26,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-04 09:20:26,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-04 09:20:26,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-04 09:20:26,108 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-10-04 09:20:26,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:26,167 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-10-04 09:20:26,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-04 09:20:26,168 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-10-04 09:20:26,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:26,169 INFO L225 Difference]: With dead ends: 11 [2018-10-04 09:20:26,169 INFO L226 Difference]: Without dead ends: 9 [2018-10-04 09:20:26,170 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 09:20:26,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-04 09:20:26,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-04 09:20:26,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-04 09:20:26,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-04 09:20:26,174 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-10-04 09:20:26,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:26,175 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-10-04 09:20:26,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-04 09:20:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-04 09:20:26,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 09:20:26,176 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:26,176 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-10-04 09:20:26,176 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:26,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:26,176 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2018-10-04 09:20:26,177 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:26,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:26,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:26,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:20:26,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:26,347 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 09:20:26,348 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:20:26,348 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 09:20:26,361 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-04 09:20:26,378 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-04 09:20:26,378 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 09:20:26,380 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:20:26,396 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 09:20:26,416 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:20:26,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-10-04 09:20:26,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-04 09:20:26,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-04 09:20:26,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-04 09:20:26,418 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-10-04 09:20:26,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:26,488 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-10-04 09:20:26,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-04 09:20:26,491 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-10-04 09:20:26,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:26,492 INFO L225 Difference]: With dead ends: 13 [2018-10-04 09:20:26,492 INFO L226 Difference]: Without dead ends: 11 [2018-10-04 09:20:26,493 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 09:20:26,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-10-04 09:20:26,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-10-04 09:20:26,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-10-04 09:20:26,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-10-04 09:20:26,497 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2018-10-04 09:20:26,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:26,497 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-10-04 09:20:26,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-04 09:20:26,497 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-10-04 09:20:26,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 09:20:26,498 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:26,498 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-10-04 09:20:26,498 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:26,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:26,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1946815861, now seen corresponding path program 3 times [2018-10-04 09:20:26,499 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:26,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:26,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:26,500 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 09:20:26,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:26,878 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 09:20:26,878 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:20:26,879 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 09:20:26,894 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-04 09:20:26,930 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-10-04 09:20:26,930 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 09:20:26,932 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:20:26,974 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 09:20:26,997 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:20:26,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2018-10-04 09:20:26,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-04 09:20:26,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-04 09:20:26,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-04 09:20:26,999 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 6 states. [2018-10-04 09:20:27,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:27,058 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-10-04 09:20:27,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-04 09:20:27,059 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-10-04 09:20:27,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:27,060 INFO L225 Difference]: With dead ends: 15 [2018-10-04 09:20:27,061 INFO L226 Difference]: Without dead ends: 13 [2018-10-04 09:20:27,061 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 2 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 09:20:27,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-10-04 09:20:27,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-10-04 09:20:27,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-10-04 09:20:27,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-10-04 09:20:27,066 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-10-04 09:20:27,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:27,066 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-10-04 09:20:27,066 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-04 09:20:27,066 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-10-04 09:20:27,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-10-04 09:20:27,067 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:20:27,067 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1] [2018-10-04 09:20:27,067 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:20:27,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:20:27,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1715646545, now seen corresponding path program 4 times [2018-10-04 09:20:27,068 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:20:27,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:20:27,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:27,070 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 09:20:27,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:20:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:20:27,325 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 09:20:27,326 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:20:27,326 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 09:20:27,333 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-04 09:20:27,346 INFO L242 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-04 09:20:27,347 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 09:20:27,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:20:27,362 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 09:20:27,382 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:20:27,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-10-04 09:20:27,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-04 09:20:27,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-04 09:20:27,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-04 09:20:27,386 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 7 states. [2018-10-04 09:20:27,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:20:27,429 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-10-04 09:20:27,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-04 09:20:27,429 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-10-04 09:20:27,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:20:27,430 INFO L225 Difference]: With dead ends: 15 [2018-10-04 09:20:27,430 INFO L226 Difference]: Without dead ends: 0 [2018-10-04 09:20:27,430 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-04 09:20:27,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-04 09:20:27,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-04 09:20:27,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-04 09:20:27,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-04 09:20:27,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-10-04 09:20:27,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:20:27,432 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-04 09:20:27,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-04 09:20:27,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-04 09:20:27,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-04 09:20:27,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-04 09:20:27,599 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 43) no Hoare annotation was computed. [2018-10-04 09:20:27,599 INFO L421 ceAbstractionStarter]: At program point L31(lines 31 41) the Hoare annotation is: false [2018-10-04 09:20:27,599 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 43) no Hoare annotation was computed. [2018-10-04 09:20:27,600 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 43) no Hoare annotation was computed. [2018-10-04 09:20:27,600 INFO L421 ceAbstractionStarter]: At program point L20(lines 20 32) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~len~5 0) (<= 0 ULTIMATE.start_main_~len~5)) (and (<= 1 ULTIMATE.start_main_~len~5) (<= ULTIMATE.start_main_~len~5 1)) (and (<= ULTIMATE.start_main_~len~5 3) (<= 3 ULTIMATE.start_main_~len~5)) (and (<= ULTIMATE.start_main_~len~5 2) (<= 2 ULTIMATE.start_main_~len~5)) (and (<= 4 ULTIMATE.start_main_~len~5) (<= ULTIMATE.start_main_~len~5 4))) [2018-10-04 09:20:27,600 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 42) no Hoare annotation was computed. [2018-10-04 09:20:27,601 INFO L421 ceAbstractionStarter]: At program point L40(lines 17 40) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~len~5 0) (<= 0 ULTIMATE.start_main_~len~5)) (and (<= 1 ULTIMATE.start_main_~len~5) (<= ULTIMATE.start_main_~len~5 1)) (and (<= ULTIMATE.start_main_~len~5 2) (<= 2 ULTIMATE.start_main_~len~5)) (and (<= ULTIMATE.start_main_~len~5 3) (<= 3 ULTIMATE.start_main_~len~5)) (and (<= 4 ULTIMATE.start_main_~len~5) (<= ULTIMATE.start_main_~len~5 4))) [2018-10-04 09:20:27,612 INFO L202 PluginConnector]: Adding new model n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 09:20:27 BoogieIcfgContainer [2018-10-04 09:20:27,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 09:20:27,613 INFO L168 Benchmark]: Toolchain (without parser) took 2766.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. [2018-10-04 09:20:27,615 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. [2018-10-04 09:20:27,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.49 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 09:20:27,617 INFO L168 Benchmark]: Boogie Preprocessor took 22.40 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 09:20:27,617 INFO L168 Benchmark]: RCFGBuilder took 300.45 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 09:20:27,618 INFO L168 Benchmark]: TraceAbstraction took 2394.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 118.9 MB). Peak memory consumption was 118.9 MB. Max. memory is 7.1 GB. [2018-10-04 09:20:27,623 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 43.49 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 22.40 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 300.45 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 2394.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 118.9 MB). Peak memory consumption was 118.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: 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: 31]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((main_~len~5 <= 0 && 0 <= main_~len~5) || (1 <= main_~len~5 && main_~len~5 <= 1)) || (main_~len~5 <= 2 && 2 <= main_~len~5)) || (main_~len~5 <= 3 && 3 <= main_~len~5)) || (4 <= main_~len~5 && main_~len~5 <= 4) - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((((main_~len~5 <= 0 && 0 <= main_~len~5) || (1 <= main_~len~5 && main_~len~5 <= 1)) || (main_~len~5 <= 3 && 3 <= main_~len~5)) || (main_~len~5 <= 2 && 2 <= main_~len~5)) || (4 <= main_~len~5 && main_~len~5 <= 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 5 OverallIterations, 5 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 0 SDslu, 51 SDs, 0 SdLazy, 74 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=4, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 13 NumberOfFragments, 73 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 3525 SizeOfPredicates, 12 NumberOfNonLiveVariables, 116 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 0/80 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/n.c11.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_09-20-27-636.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/n.c11.i_3.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-04_09-20-27-636.csv Received shutdown request...