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_PUPT.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/INT_add_vs_inc.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-9f4048f [2018-10-04 12:56:01,978 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-04 12:56:01,980 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-04 12:56:01,992 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-04 12:56:02,037 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf [2018-10-04 12:56:02,057 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-04 12:56:02,057 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-04 12:56:02,058 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-04 12:56:02,058 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-04 12:56:02,059 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-04 12:56:02,059 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-04 12:56:02,059 INFO L133 SettingsManager]: * Use SBE=true [2018-10-04 12:56:02,060 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-04 12:56:02,060 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-04 12:56:02,060 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-04 12:56:02,060 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-04 12:56:02,060 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-04 12:56:02,060 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-04 12:56:02,061 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-04 12:56:02,061 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-04 12:56:02,061 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-04 12:56:02,061 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-04 12:56:02,061 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-04 12:56:02,062 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-04 12:56:02,062 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-04 12:56:02,062 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-04 12:56:02,062 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-04 12:56:02,062 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-04 12:56:02,062 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-04 12:56:02,063 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-04 12:56:02,063 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-04 12:56:02,063 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-04 12:56:02,063 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-04 12:56:02,063 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-04 12:56:02,064 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-04 12:56:02,064 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-04 12:56:02,107 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-04 12:56:02,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-04 12:56:02,131 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-04 12:56:02,133 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-04 12:56:02,134 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-04 12:56:02,134 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/INT_add_vs_inc.bpl [2018-10-04 12:56:02,135 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/INT_add_vs_inc.bpl' [2018-10-04 12:56:02,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-04 12:56:02,186 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-04 12:56:02,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-04 12:56:02,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-04 12:56:02,187 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-04 12:56:02,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:56:02" (1/1) ... [2018-10-04 12:56:02,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:56:02" (1/1) ... [2018-10-04 12:56:02,222 WARN L165 Inliner]: Program contained no entry procedure! [2018-10-04 12:56:02,222 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-10-04 12:56:02,222 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-10-04 12:56:02,224 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-04 12:56:02,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-04 12:56:02,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-04 12:56:02,225 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-04 12:56:02,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:56:02" (1/1) ... [2018-10-04 12:56:02,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:56:02" (1/1) ... [2018-10-04 12:56:02,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:56:02" (1/1) ... [2018-10-04 12:56:02,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:56:02" (1/1) ... [2018-10-04 12:56:02,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:56:02" (1/1) ... [2018-10-04 12:56:02,243 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:56:02" (1/1) ... [2018-10-04 12:56:02,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:56:02" (1/1) ... [2018-10-04 12:56:02,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-04 12:56:02,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-04 12:56:02,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-04 12:56:02,246 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-04 12:56:02,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:56:02" (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 12:56:02,304 INFO L124 BoogieDeclarations]: Specification and implementation of procedure add given in one single declaration [2018-10-04 12:56:02,304 INFO L130 BoogieDeclarations]: Found specification of procedure add [2018-10-04 12:56:02,304 INFO L138 BoogieDeclarations]: Found implementation of procedure add [2018-10-04 12:56:02,503 INFO L338 CfgBuilder]: Using library mode [2018-10-04 12:56:02,503 INFO L202 PluginConnector]: Adding new model INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:56:02 BoogieIcfgContainer [2018-10-04 12:56:02,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-04 12:56:02,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-04 12:56:02,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-04 12:56:02,508 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-04 12:56:02,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:56:02" (1/2) ... [2018-10-04 12:56:02,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142c11fa and model type INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 12:56:02, skipping insertion in model container [2018-10-04 12:56:02,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:56:02" (2/2) ... [2018-10-04 12:56:02,512 INFO L112 eAbstractionObserver]: Analyzing ICFG INT_add_vs_inc.bpl [2018-10-04 12:56:02,522 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-04 12:56:02,530 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-04 12:56:02,581 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-04 12:56:02,582 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-04 12:56:02,582 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-04 12:56:02,582 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-04 12:56:02,582 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-04 12:56:02,583 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-04 12:56:02,583 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-04 12:56:02,583 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-04 12:56:02,583 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-04 12:56:02,599 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-10-04 12:56:02,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-10-04 12:56:02,605 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:56:02,606 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-10-04 12:56:02,607 INFO L423 AbstractCegarLoop]: === Iteration 1 === [addErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:56:02,614 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 12:56:02,615 INFO L82 PathProgramCache]: Analyzing trace with hash 29984, now seen corresponding path program 1 times [2018-10-04 12:56:02,617 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:56:02,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:56:02,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:56:02,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:56:02,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:56:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:56:02,848 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 12:56:02,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-04 12:56:02,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-04 12:56:02,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-04 12:56:02,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-04 12:56:02,869 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-04 12:56:02,871 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-10-04 12:56:03,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:56:03,003 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-10-04 12:56:03,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-04 12:56:03,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-10-04 12:56:03,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:56:03,016 INFO L225 Difference]: With dead ends: 11 [2018-10-04 12:56:03,016 INFO L226 Difference]: Without dead ends: 5 [2018-10-04 12:56:03,019 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time 0.0s impTime 2 [2018-10-04 12:56:03,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-10-04 12:56:03,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-10-04 12:56:03,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-04 12:56:03,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-10-04 12:56:03,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-10-04 12:56:03,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:56:03,069 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-10-04 12:56:03,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-04 12:56:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-10-04 12:56:03,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-04 12:56:03,069 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:56:03,070 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-04 12:56:03,070 INFO L423 AbstractCegarLoop]: === Iteration 2 === [addErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:56:03,070 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 12:56:03,070 INFO L82 PathProgramCache]: Analyzing trace with hash 927558, now seen corresponding path program 1 times [2018-10-04 12:56:03,070 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:56:03,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:56:03,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:56:03,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:56:03,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:56:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:56:03,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:56:03,232 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:56:03,232 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-04 12:56:03,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:56:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:56:03,257 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:56:03,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:56:03,422 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:56:03,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2018-10-04 12:56:03,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-04 12:56:03,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-04 12:56:03,423 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-04 12:56:03,423 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 7 states. [2018-10-04 12:56:03,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:56:03,536 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-10-04 12:56:03,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-04 12:56:03,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 4 [2018-10-04 12:56:03,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:56:03,537 INFO L225 Difference]: With dead ends: 8 [2018-10-04 12:56:03,538 INFO L226 Difference]: Without dead ends: 6 [2018-10-04 12:56:03,539 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time 0.1s impTime 5 [2018-10-04 12:56:03,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-10-04 12:56:03,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-10-04 12:56:03,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-10-04 12:56:03,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-10-04 12:56:03,543 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-10-04 12:56:03,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:56:03,543 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-10-04 12:56:03,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-04 12:56:03,543 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-10-04 12:56:03,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-04 12:56:03,544 INFO L367 BasicCegarLoop]: Found error trace [2018-10-04 12:56:03,544 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-10-04 12:56:03,544 INFO L423 AbstractCegarLoop]: === Iteration 3 === [addErr0ASSERT_VIOLATIONASSERT]=== [2018-10-04 12:56:03,545 INFO L108 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-04 12:56:03,545 INFO L82 PathProgramCache]: Analyzing trace with hash 28752352, now seen corresponding path program 2 times [2018-10-04 12:56:03,545 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-04 12:56:03,545 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-04 12:56:03,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:56:03,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-04 12:56:03,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-04 12:56:03,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-04 12:56:03,766 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:56:03,767 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-04 12:56:03,767 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 12:56:03,780 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-04 12:56:03,789 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-04 12:56:03,789 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-04 12:56:03,790 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-04 12:56:04,027 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-04 12:56:04,056 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-04 12:56:04,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2018-10-04 12:56:04,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-04 12:56:04,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-04 12:56:04,057 INFO L146 InterpolantAutomaton]: No coverage relation statistics for ImplicationMap [2018-10-04 12:56:04,057 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 9 states. [2018-10-04 12:56:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-04 12:56:04,540 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-10-04 12:56:04,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-04 12:56:04,540 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 5 [2018-10-04 12:56:04,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-04 12:56:04,541 INFO L225 Difference]: With dead ends: 8 [2018-10-04 12:56:04,541 INFO L226 Difference]: Without dead ends: 0 [2018-10-04 12:56:04,541 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s Time 0.5s impTime 8 [2018-10-04 12:56:04,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-04 12:56:04,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-04 12:56:04,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-04 12:56:04,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-04 12:56:04,543 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2018-10-04 12:56:04,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-04 12:56:04,543 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-04 12:56:04,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-04 12:56:04,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-04 12:56:04,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-04 12:56:04,549 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-04 12:56:04,686 INFO L425 ceAbstractionStarter]: For program point addEXIT(lines 8 24) no Hoare annotation was computed. [2018-10-04 12:56:04,686 INFO L421 ceAbstractionStarter]: At program point L17-1(lines 17 21) the Hoare annotation is: (let ((.cse0 (+ add_x add_y0)) (.cse1 (+ add_y add_result))) (and (<= add_result .cse0) (<= .cse1 .cse0) (<= .cse0 .cse1))) [2018-10-04 12:56:04,686 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-10-04 12:56:04,686 INFO L425 ceAbstractionStarter]: For program point addErr0ASSERT_VIOLATIONASSERT(line 23) no Hoare annotation was computed. [2018-10-04 12:56:04,687 INFO L425 ceAbstractionStarter]: For program point addENTRY(lines 8 24) no Hoare annotation was computed. [2018-10-04 12:56:04,687 INFO L425 ceAbstractionStarter]: For program point addFINAL(lines 8 24) no Hoare annotation was computed. [2018-10-04 12:56:04,695 INFO L202 PluginConnector]: Adding new model INT_add_vs_inc.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 12:56:04 BoogieIcfgContainer [2018-10-04 12:56:04,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-04 12:56:04,697 INFO L168 Benchmark]: Toolchain (without parser) took 2512.00 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-10-04 12:56:04,699 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 12:56:04,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.62 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 12:56:04,701 INFO L168 Benchmark]: Boogie Preprocessor took 20.51 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-04 12:56:04,701 INFO L168 Benchmark]: RCFGBuilder took 258.63 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-04 12:56:04,703 INFO L168 Benchmark]: TraceAbstraction took 2191.11 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-10-04 12:56:04,708 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.62 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.51 ms. Allocated memory is still 1.6 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 258.63 ms. Allocated memory is still 1.6 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 2191.11 ms. Allocated memory is still 1.6 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: 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: 17]: Loop Invariant Derived loop invariant: (result <= x + y0 && y + result <= x + y0) && x + y0 <= y + result - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 2.1s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 12 SDslu, 2 SDs, 0 SdLazy, 46 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 20 HoareAnnotationTreeSize, 1 FomulaSimplifications, 32 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 117 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 850 SizeOfPredicates, 2 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/8 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/INT_add_vs_inc.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-04_12-56-04-725.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/INT_add_vs_inc.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-04_12-56-04-725.csv Received shutdown request...