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/vogal.i_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f [2018-10-04 12:28:38,154 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 12:28:38,156 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 12:28:38,168 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-04 12:28:38,168 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-04 12:28:38,169 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-04 12:28:38,171 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-04 12:28:38,172 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-04 12:28:38,177 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-04 12:28:38,178 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-04 12:28:38,179 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-04 12:28:38,179 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-04 12:28:38,183 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-04 12:28:38,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-04 12:28:38,185 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-04 12:28:38,188 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-04 12:28:38,189 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-04 12:28:38,192 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-04 12:28:38,197 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-04 12:28:38,198 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-04 12:28:38,201 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-04 12:28:38,202 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-04 12:28:38,204 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-04 12:28:38,220 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 12:28:38,250 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 12:28:38,250 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 12:28:38,251 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 12:28:38,251 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 12:28:38,251 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 12:28:38,252 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 12:28:38,253 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 12:28:38,253 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 12:28:38,253 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 12:28:38,253 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 12:28:38,253 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 12:28:38,254 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 12:28:38,254 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 12:28:38,254 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 12:28:38,254 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 12:28:38,254 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 12:28:38,254 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 12:28:38,255 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 12:28:38,255 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 12:28:38,256 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 12:28:38,256 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 12:28:38,256 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 12:28:38,256 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 12:28:38,256 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 12:28:38,256 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 12:28:38,257 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 12:28:38,257 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 12:28:38,257 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 12:28:38,257 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 12:28:38,257 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 12:28:38,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 12:28:38,323 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 12:28:38,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 12:28:38,330 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 12:28:38,331 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 12:28:38,332 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/vogal.i_5.bpl [2018-10-04 12:28:38,333 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/vogal.i_5.bpl' [2018-10-04 12:28:38,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 12:28:38,395 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 12:28:38,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 12:28:38,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 12:28:38,396 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 12:28:38,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:28:38" (1/1) ... [2018-10-04 12:28:38,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:28:38" (1/1) ... [2018-10-04 12:28:38,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 12:28:38,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 12:28:38,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 12:28:38,437 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 12:28:38,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:28:38" (1/1) ... [2018-10-04 12:28:38,448 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:28:38" (1/1) ... [2018-10-04 12:28:38,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:28:38" (1/1) ... [2018-10-04 12:28:38,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:28:38" (1/1) ... [2018-10-04 12:28:38,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:28:38" (1/1) ... [2018-10-04 12:28:38,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:28:38" (1/1) ... [2018-10-04 12:28:38,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:28:38" (1/1) ... [2018-10-04 12:28:38,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 12:28:38,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 12:28:38,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 12:28:38,460 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 12:28:38,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:28:38" (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 12:28:38,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-04 12:28:38,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-04 12:28:38,927 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-04 12:28:38,928 INFO L202 PluginConnector]: Adding new model vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:28:38 BoogieIcfgContainer [2018-10-04 12:28:38,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 12:28:38,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 12:28:38,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 12:28:38,934 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 12:28:38,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:28:38" (1/2) ... [2018-10-04 12:28:38,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4682a232 and model type vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 12:28:38, skipping insertion in model container [2018-10-04 12:28:38,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:28:38" (2/2) ... [2018-10-04 12:28:38,938 INFO L112 eAbstractionObserver]: Analyzing ICFG vogal.i_5.bpl [2018-10-04 12:28:38,950 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 12:28:38,967 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 12:28:39,033 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 12:28:39,034 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 12:28:39,034 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 12:28:39,035 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 12:28:39,035 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 12:28:39,035 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 12:28:39,035 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 12:28:39,035 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 12:28:39,036 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 12:28:39,065 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-10-04 12:28:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-04 12:28:39,074 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:28:39,075 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-04 12:28:39,076 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:28:39,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:28:39,082 INFO L82 PathProgramCache]: Analyzing trace with hash 148998095, now seen corresponding path program 1 times [2018-10-04 12:28:39,083 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:28:39,084 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:28:39,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:28:39,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:28:39,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:28:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:28:39,252 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 12:28:39,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 12:28:39,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-04 12:28:39,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-04 12:28:39,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-04 12:28:39,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-04 12:28:39,272 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2018-10-04 12:28:39,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:28:39,386 INFO L93 Difference]: Finished difference Result 27 states and 37 transitions. [2018-10-04 12:28:39,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-04 12:28:39,388 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-10-04 12:28:39,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:28:39,399 INFO L225 Difference]: With dead ends: 27 [2018-10-04 12:28:39,399 INFO L226 Difference]: Without dead ends: 19 [2018-10-04 12:28:39,403 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 12:28:39,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-10-04 12:28:39,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2018-10-04 12:28:39,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-10-04 12:28:39,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-10-04 12:28:39,438 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 8 [2018-10-04 12:28:39,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:28:39,438 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-10-04 12:28:39,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-04 12:28:39,439 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-10-04 12:28:39,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-04 12:28:39,439 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:28:39,440 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-04 12:28:39,440 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:28:39,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:28:39,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1897140361, now seen corresponding path program 1 times [2018-10-04 12:28:39,441 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:28:39,441 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:28:39,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:28:39,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:28:39,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:28:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:28:39,527 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 12:28:39,527 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:28:39,528 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) [2018-10-04 12:28:39,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-04 12:28:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:28:39,590 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:28:39,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-04 12:28:39,701 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:28:39,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2018-10-04 12:28:39,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-04 12:28:39,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-04 12:28:39,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-04 12:28:39,703 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 6 states. [2018-10-04 12:28:40,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:28:40,352 INFO L93 Difference]: Finished difference Result 71 states and 95 transitions. [2018-10-04 12:28:40,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-04 12:28:40,354 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-10-04 12:28:40,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:28:40,356 INFO L225 Difference]: With dead ends: 71 [2018-10-04 12:28:40,356 INFO L226 Difference]: Without dead ends: 63 [2018-10-04 12:28:40,358 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2018-10-04 12:28:40,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-10-04 12:28:40,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 19. [2018-10-04 12:28:40,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-04 12:28:40,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2018-10-04 12:28:40,373 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10 [2018-10-04 12:28:40,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:28:40,381 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2018-10-04 12:28:40,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-04 12:28:40,381 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2018-10-04 12:28:40,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-04 12:28:40,382 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:28:40,382 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-04 12:28:40,383 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:28:40,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-04 12:28:40,384 INFO L82 PathProgramCache]: Analyzing trace with hash -608727565, now seen corresponding path program 1 times [2018-10-04 12:28:40,384 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:28:40,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:28:40,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:28:40,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:28:40,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:28:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:28:40,546 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-04 12:28:40,547 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:28:40,547 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 12:28:40,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:28:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:28:40,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:28:40,697 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-04 12:28:40,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-04 12:28:40,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2018-10-04 12:28:40,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-04 12:28:40,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-04 12:28:40,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-04 12:28:40,721 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand 7 states. [2018-10-04 12:28:40,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:28:40,838 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2018-10-04 12:28:40,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-04 12:28:40,841 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-10-04 12:28:40,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:28:40,842 INFO L225 Difference]: With dead ends: 29 [2018-10-04 12:28:40,842 INFO L226 Difference]: Without dead ends: 0 [2018-10-04 12:28:40,843 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-04 12:28:40,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-04 12:28:40,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-04 12:28:40,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-04 12:28:40,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-04 12:28:40,846 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-10-04 12:28:40,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:28:40,847 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-04 12:28:40,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-04 12:28:40,847 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-04 12:28:40,847 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-04 12:28:40,853 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-04 12:28:40,976 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 124) no Hoare annotation was computed. [2018-10-04 12:28:40,976 INFO L428 ceAbstractionStarter]: At program point L83(lines 54 83) the Hoare annotation is: true [2018-10-04 12:28:40,977 INFO L421 ceAbstractionStarter]: At program point L96(lines 96 101) the Hoare annotation is: false [2018-10-04 12:28:40,978 INFO L428 ceAbstractionStarter]: At program point L63(lines 44 63) the Hoare annotation is: true [2018-10-04 12:28:40,978 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 102) no Hoare annotation was computed. [2018-10-04 12:28:40,978 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 124) no Hoare annotation was computed. [2018-10-04 12:28:40,978 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 124) no Hoare annotation was computed. [2018-10-04 12:28:40,978 INFO L421 ceAbstractionStarter]: At program point L123(lines 100 123) the Hoare annotation is: false [2018-10-04 12:28:40,978 INFO L421 ceAbstractionStarter]: At program point L86(lines 86 97) the Hoare annotation is: (and (= ULTIMATE.start_main_~cont~5 0) (= (select ULTIMATE.start_main_~string_entrada~5 0) 0) (= ULTIMATE.start_main_~cont_aux~5 0) (= ULTIMATE.start_main_~i~5 0)) [2018-10-04 12:28:40,979 INFO L421 ceAbstractionStarter]: At program point L113(lines 77 113) the Hoare annotation is: (and (= ULTIMATE.start_main_~cont~5 0) (= (select ULTIMATE.start_main_~string_entrada~5 0) 0) (= ULTIMATE.start_main_~cont_aux~5 0) (= ULTIMATE.start_main_~i~5 0)) [2018-10-04 12:28:40,979 INFO L428 ceAbstractionStarter]: At program point L47(lines 47 55) the Hoare annotation is: true [2018-10-04 12:28:40,979 INFO L421 ceAbstractionStarter]: At program point L105(lines 105 114) the Hoare annotation is: false [2018-10-04 12:28:40,979 INFO L428 ceAbstractionStarter]: At program point L66(lines 66 78) the Hoare annotation is: true [2018-10-04 12:28:40,989 INFO L202 PluginConnector]: Adding new model vogal.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 12:28:40 BoogieIcfgContainer [2018-10-04 12:28:40,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 12:28:40,990 INFO L168 Benchmark]: Toolchain (without parser) took 2596.11 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 12:28:40,992 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.86 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 12:28:40,993 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.67 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 12:28:40,993 INFO L168 Benchmark]: Boogie Preprocessor took 22.56 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 12:28:40,994 INFO L168 Benchmark]: RCFGBuilder took 468.70 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 12:28:40,995 INFO L168 Benchmark]: TraceAbstraction took 2059.31 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: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. [2018-10-04 12:28:40,999 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 0.86 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 40.67 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 22.56 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 468.70 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 2059.31 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: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 102]: 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: 44]: Loop Invariant Derived loop invariant: true - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: true - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: ((main_~cont~5 == 0 && main_~string_entrada~5[0] == 0) && main_~cont_aux~5 == 0) && main_~i~5 == 0 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: ((main_~cont~5 == 0 && main_~string_entrada~5[0] == 0) && main_~cont_aux~5 == 0) && main_~i~5 == 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: true - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: true - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: false - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 26 SDtfs, 78 SDslu, 52 SDs, 0 SdLazy, 96 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 50 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 23 NumberOfFragments, 37 HoareAnnotationTreeSize, 9 FomulaSimplifications, 292 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 1921 SizeOfPredicates, 10 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 16/24 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/vogal.i_5.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_12-28-41-016.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/vogal.i_5.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-04_12-28-41-016.csv Received shutdown request...