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/sum04.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-133090d [2018-10-04 09:22:37,475 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 09:22:37,477 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 09:22:37,490 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 09:22:37,490 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 09:22:37,491 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 09:22:37,492 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 09:22:37,501 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 09:22:37,503 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 09:22:37,504 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 09:22:37,505 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 09:22:37,505 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 09:22:37,506 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 09:22:37,507 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 09:22:37,508 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 09:22:37,509 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 09:22:37,510 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 09:22:37,513 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 09:22:37,517 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 09:22:37,519 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 09:22:37,520 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 09:22:37,522 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 09:22:37,524 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-04 09:22:37,532 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 09:22:37,547 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 09:22:37,547 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 09:22:37,548 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 09:22:37,548 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 09:22:37,549 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 09:22:37,549 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 09:22:37,549 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 09:22:37,550 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 09:22:37,551 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 09:22:37,552 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 09:22:37,552 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 09:22:37,552 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 09:22:37,552 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 09:22:37,552 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 09:22:37,552 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 09:22:37,553 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 09:22:37,553 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 09:22:37,553 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 09:22:37,553 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 09:22:37,553 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 09:22:37,554 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 09:22:37,555 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 09:22:37,555 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 09:22:37,555 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 09:22:37,556 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 09:22:37,556 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 09:22:37,556 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 09:22:37,556 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 09:22:37,556 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 09:22:37,556 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 09:22:37,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 09:22:37,640 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 09:22:37,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 09:22:37,648 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 09:22:37,648 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 09:22:37,649 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum04.i_4.bpl [2018-10-04 09:22:37,649 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum04.i_4.bpl' [2018-10-04 09:22:37,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 09:22:37,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 09:22:37,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 09:22:37,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 09:22:37,709 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 09:22:37,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:22:37" (1/1) ... [2018-10-04 09:22:37,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:22:37" (1/1) ... [2018-10-04 09:22:37,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 09:22:37,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 09:22:37,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 09:22:37,748 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 09:22:37,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:22:37" (1/1) ... [2018-10-04 09:22:37,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:22:37" (1/1) ... [2018-10-04 09:22:37,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:22:37" (1/1) ... [2018-10-04 09:22:37,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:22:37" (1/1) ... [2018-10-04 09:22:37,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:22:37" (1/1) ... [2018-10-04 09:22:37,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:22:37" (1/1) ... [2018-10-04 09:22:37,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:22:37" (1/1) ... [2018-10-04 09:22:37,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 09:22:37,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 09:22:37,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 09:22:37,769 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 09:22:37,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:22:37" (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 09:22:37,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 09:22:37,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 09:22:38,118 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 09:22:38,119 INFO L202 PluginConnector]: Adding new model sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:22:38 BoogieIcfgContainer [2018-10-04 09:22:38,119 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 09:22:38,121 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 09:22:38,121 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 09:22:38,125 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 09:22:38,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 09:22:37" (1/2) ... [2018-10-04 09:22:38,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6460f1f5 and model type sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 09:22:38, skipping insertion in model container [2018-10-04 09:22:38,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 09:22:38" (2/2) ... [2018-10-04 09:22:38,129 INFO L112 eAbstractionObserver]: Analyzing ICFG sum04.i_4.bpl [2018-10-04 09:22:38,139 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 09:22:38,146 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 09:22:38,196 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 09:22:38,197 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 09:22:38,197 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 09:22:38,197 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 09:22:38,197 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 09:22:38,197 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 09:22:38,198 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 09:22:38,198 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 09:22:38,198 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 09:22:38,211 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-10-04 09:22:38,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 09:22:38,217 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:22:38,218 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-04 09:22:38,219 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:22:38,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:22:38,225 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-10-04 09:22:38,227 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:22:38,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:22:38,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:22:38,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:22:38,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:22:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:22:38,370 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 09:22:38,372 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 09:22:38,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-04 09:22:38,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 09:22:38,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 09:22:38,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 09:22:38,393 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-10-04 09:22:38,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:22:38,532 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2018-10-04 09:22:38,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 09:22:38,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-10-04 09:22:38,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:22:38,545 INFO L225 Difference]: With dead ends: 17 [2018-10-04 09:22:38,545 INFO L226 Difference]: Without dead ends: 11 [2018-10-04 09:22:38,549 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 09:22:38,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-10-04 09:22:38,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2018-10-04 09:22:38,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-04 09:22:38,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2018-10-04 09:22:38,588 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2018-10-04 09:22:38,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:22:38,588 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-10-04 09:22:38,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 09:22:38,589 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2018-10-04 09:22:38,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 09:22:38,589 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:22:38,589 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2018-10-04 09:22:38,590 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:22:38,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:22:38,590 INFO L82 PathProgramCache]: Analyzing trace with hash 211007069, now seen corresponding path program 1 times [2018-10-04 09:22:38,590 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:22:38,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:22:38,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:22:38,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:22:38,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:22:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:22:38,675 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 09:22:38,676 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:22:38,676 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 09:22:38,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:22:38,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:22:38,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:22:38,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:22:38,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-04 09:22:38,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2018-10-04 09:22:38,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-04 09:22:38,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-04 09:22:38,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-04 09:22:38,866 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 6 states. [2018-10-04 09:22:38,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:22:38,969 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2018-10-04 09:22:38,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-04 09:22:38,970 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-10-04 09:22:38,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:22:38,971 INFO L225 Difference]: With dead ends: 29 [2018-10-04 09:22:38,971 INFO L226 Difference]: Without dead ends: 23 [2018-10-04 09:22:38,972 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-10-04 09:22:38,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-04 09:22:38,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2018-10-04 09:22:38,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-04 09:22:38,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2018-10-04 09:22:38,979 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 8 [2018-10-04 09:22:38,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:22:38,980 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2018-10-04 09:22:38,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-04 09:22:38,980 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2018-10-04 09:22:38,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-04 09:22:38,981 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:22:38,981 INFO L375 BasicCegarLoop]: trace histogram [5, 4, 4, 3, 1, 1, 1, 1] [2018-10-04 09:22:38,981 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:22:38,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:22:38,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1023362849, now seen corresponding path program 1 times [2018-10-04 09:22:38,982 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:22:38,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:22:38,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:22:38,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:22:38,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:22:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:22:39,102 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-04 09:22:39,105 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:22:39,105 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 09:22:39,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:22:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:22:39,145 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:22:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:22:39,409 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:22:39,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 7 [2018-10-04 09:22:39,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-04 09:22:39,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-04 09:22:39,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-10-04 09:22:39,411 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 7 states. [2018-10-04 09:22:39,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:22:39,594 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2018-10-04 09:22:39,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-04 09:22:39,595 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-10-04 09:22:39,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:22:39,598 INFO L225 Difference]: With dead ends: 37 [2018-10-04 09:22:39,598 INFO L226 Difference]: Without dead ends: 35 [2018-10-04 09:22:39,599 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-10-04 09:22:39,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-04 09:22:39,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-10-04 09:22:39,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-04 09:22:39,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2018-10-04 09:22:39,612 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 20 [2018-10-04 09:22:39,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:22:39,612 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2018-10-04 09:22:39,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-04 09:22:39,613 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2018-10-04 09:22:39,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-04 09:22:39,614 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:22:39,614 INFO L375 BasicCegarLoop]: trace histogram [8, 7, 7, 4, 3, 1, 1, 1] [2018-10-04 09:22:39,615 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:22:39,615 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:22:39,615 INFO L82 PathProgramCache]: Analyzing trace with hash 2054339817, now seen corresponding path program 2 times [2018-10-04 09:22:39,615 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:22:39,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:22:39,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:22:39,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 09:22:39,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:22:39,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 09:22:39,908 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:22:39,908 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 09:22:39,909 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 09:22:39,925 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-04 09:22:39,959 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-04 09:22:39,959 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 09:22:39,962 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 09:22:39,974 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 09:22:39,994 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 09:22:39,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-10-04 09:22:39,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-04 09:22:39,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-04 09:22:39,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-10-04 09:22:39,996 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 10 states. [2018-10-04 09:22:40,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 09:22:40,105 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-10-04 09:22:40,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-04 09:22:40,106 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-10-04 09:22:40,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 09:22:40,108 INFO L225 Difference]: With dead ends: 39 [2018-10-04 09:22:40,110 INFO L226 Difference]: Without dead ends: 37 [2018-10-04 09:22:40,111 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-10-04 09:22:40,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-10-04 09:22:40,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-10-04 09:22:40,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-04 09:22:40,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2018-10-04 09:22:40,119 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 32 [2018-10-04 09:22:40,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 09:22:40,120 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2018-10-04 09:22:40,120 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-04 09:22:40,120 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2018-10-04 09:22:40,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-04 09:22:40,121 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 09:22:40,122 INFO L375 BasicCegarLoop]: trace histogram [9, 8, 8, 5, 3, 1, 1, 1] [2018-10-04 09:22:40,122 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 09:22:40,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 09:22:40,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1532830081, now seen corresponding path program 3 times [2018-10-04 09:22:40,123 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 09:22:40,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 09:22:40,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:22:40,124 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-04 09:22:40,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 09:22:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-04 09:22:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-04 09:22:40,183 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-04 09:22:40,208 INFO L202 PluginConnector]: Adding new model sum04.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 09:22:40 BoogieIcfgContainer [2018-10-04 09:22:40,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 09:22:40,209 INFO L168 Benchmark]: Toolchain (without parser) took 2502.78 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: 129.5 MB). Peak memory consumption was 129.5 MB. Max. memory is 7.1 GB. [2018-10-04 09:22:40,211 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 09:22:40,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.20 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 09:22:40,213 INFO L168 Benchmark]: Boogie Preprocessor took 19.95 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 09:22:40,213 INFO L168 Benchmark]: RCFGBuilder took 350.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-04 09:22:40,214 INFO L168 Benchmark]: TraceAbstraction took 2087.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-10-04 09:22:40,219 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 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.20 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 Preprocessor took 19.95 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 350.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2087.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 33]: assertion can be violated assertion can be violated We found a FailurePath: [L10] havoc main_#res; [L11] havoc main_#t~post0, main_~i~4, main_~sn~4; [L12] havoc main_~i~4; [L13] main_~sn~4 := 0; [L14] main_~i~4 := 1; VAL [main_~i~4=1, main_~sn~4=0] [L17] assume true; VAL [main_~i~4=1, main_~sn~4=0] [L30] assume !!(main_~i~4 <= 8); VAL [main_~i~4=1, main_~sn~4=0] [L37] assume main_~i~4 < 4; [L38] main_~sn~4 := main_~sn~4 + 2; VAL [main_~i~4=1, main_~sn~4=2] [L44] main_#t~post0 := main_~i~4; [L45] main_~i~4 := main_#t~post0 + 1; [L46] havoc main_#t~post0; VAL [main_~i~4=2, main_~sn~4=2] [L17] assume true; VAL [main_~i~4=2, main_~sn~4=2] [L30] assume !!(main_~i~4 <= 8); VAL [main_~i~4=2, main_~sn~4=2] [L37] assume main_~i~4 < 4; [L38] main_~sn~4 := main_~sn~4 + 2; VAL [main_~i~4=2, main_~sn~4=4] [L44] main_#t~post0 := main_~i~4; [L45] main_~i~4 := main_#t~post0 + 1; [L46] havoc main_#t~post0; VAL [main_~i~4=3, main_~sn~4=4] [L17] assume true; VAL [main_~i~4=3, main_~sn~4=4] [L30] assume !!(main_~i~4 <= 8); VAL [main_~i~4=3, main_~sn~4=4] [L37] assume main_~i~4 < 4; [L38] main_~sn~4 := main_~sn~4 + 2; VAL [main_~i~4=3, main_~sn~4=6] [L44] main_#t~post0 := main_~i~4; [L45] main_~i~4 := main_#t~post0 + 1; [L46] havoc main_#t~post0; VAL [main_~i~4=4, main_~sn~4=6] [L17] assume true; VAL [main_~i~4=4, main_~sn~4=6] [L30] assume !!(main_~i~4 <= 8); VAL [main_~i~4=4, main_~sn~4=6] [L41] assume !(main_~i~4 < 4); VAL [main_~i~4=4, main_~sn~4=6] [L44] main_#t~post0 := main_~i~4; [L45] main_~i~4 := main_#t~post0 + 1; [L46] havoc main_#t~post0; VAL [main_~i~4=5, main_~sn~4=6] [L17] assume true; VAL [main_~i~4=5, main_~sn~4=6] [L30] assume !!(main_~i~4 <= 8); VAL [main_~i~4=5, main_~sn~4=6] [L41] assume !(main_~i~4 < 4); VAL [main_~i~4=5, main_~sn~4=6] [L44] main_#t~post0 := main_~i~4; [L45] main_~i~4 := main_#t~post0 + 1; [L46] havoc main_#t~post0; VAL [main_~i~4=6, main_~sn~4=6] [L17] assume true; VAL [main_~i~4=6, main_~sn~4=6] [L30] assume !!(main_~i~4 <= 8); VAL [main_~i~4=6, main_~sn~4=6] [L41] assume !(main_~i~4 < 4); VAL [main_~i~4=6, main_~sn~4=6] [L44] main_#t~post0 := main_~i~4; [L45] main_~i~4 := main_#t~post0 + 1; [L46] havoc main_#t~post0; VAL [main_~i~4=7, main_~sn~4=6] [L17] assume true; VAL [main_~i~4=7, main_~sn~4=6] [L30] assume !!(main_~i~4 <= 8); VAL [main_~i~4=7, main_~sn~4=6] [L41] assume !(main_~i~4 < 4); VAL [main_~i~4=7, main_~sn~4=6] [L44] main_#t~post0 := main_~i~4; [L45] main_~i~4 := main_#t~post0 + 1; [L46] havoc main_#t~post0; VAL [main_~i~4=8, main_~sn~4=6] [L17] assume true; VAL [main_~i~4=8, main_~sn~4=6] [L30] assume !!(main_~i~4 <= 8); VAL [main_~i~4=8, main_~sn~4=6] [L41] assume !(main_~i~4 < 4); VAL [main_~i~4=8, main_~sn~4=6] [L44] main_#t~post0 := main_~i~4; [L45] main_~i~4 := main_#t~post0 + 1; [L46] havoc main_#t~post0; VAL [main_~i~4=9, main_~sn~4=6] [L17] assume true; VAL [main_~i~4=9, main_~sn~4=6] [L22] assume !(main_~i~4 <= 8); [L23] __VERIFIER_assert_#in~cond := (if main_~sn~4 == 16 || main_~sn~4 == 0 then 1 else 0); [L24] havoc __VERIFIER_assert_~cond; [L25] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L26] assume __VERIFIER_assert_~cond == 0; [L27] assume !false; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~i~4=9, main_~sn~4=6] [L33] assert false; VAL [__VERIFIER_assert_#in~cond=0, __VERIFIER_assert_~cond=0, main_~i~4=9, main_~sn~4=6] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. UNSAFE Result, 2.0s OverallTime, 5 OverallIterations, 9 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 53 SDslu, 31 SDs, 0 SdLazy, 85 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 117 ConstructedInterpolants, 0 QuantifiedInterpolants, 7445 SizeOfPredicates, 2 NumberOfNonLiveVariables, 119 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 42/264 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum04.i_4.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_09-22-40-232.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum04.i_4.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-04_09-22-40-232.csv Received shutdown request...