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/20170304-DifficultPathPrograms/afnp2014.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cc990c [2018-10-01 00:39:13,197 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-01 00:39:13,200 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-01 00:39:13,212 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-01 00:39:13,257 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 [2018-10-01 00:39:13,281 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-01 00:39:13,281 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-01 00:39:13,282 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-01 00:39:13,282 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-01 00:39:13,283 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-01 00:39:13,283 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-01 00:39:13,283 INFO L133 SettingsManager]: * Use SBE=true [2018-10-01 00:39:13,283 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-01 00:39:13,284 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-01 00:39:13,284 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-01 00:39:13,284 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-01 00:39:13,284 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-01 00:39:13,284 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-01 00:39:13,285 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-01 00:39:13,285 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-01 00:39:13,285 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-01 00:39:13,285 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-01 00:39:13,285 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-01 00:39:13,286 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-01 00:39:13,286 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-01 00:39:13,286 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-01 00:39:13,286 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-01 00:39:13,286 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-01 00:39:13,287 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-01 00:39:13,287 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-01 00:39:13,287 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-01 00:39:13,287 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-01 00:39:13,287 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-01 00:39:13,288 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-01 00:39:13,288 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-01 00:39:13,288 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-01 00:39:13,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-01 00:39:13,368 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-01 00:39:13,375 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-01 00:39:13,377 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-01 00:39:13,377 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-01 00:39:13,378 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/afnp2014.c.i_3.bpl [2018-10-01 00:39:13,379 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/afnp2014.c.i_3.bpl' [2018-10-01 00:39:13,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-01 00:39:13,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-01 00:39:13,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-01 00:39:13,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-01 00:39:13,440 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-01 00:39:13,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:39:13" (1/1) ... [2018-10-01 00:39:13,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:39:13" (1/1) ... [2018-10-01 00:39:13,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-01 00:39:13,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-01 00:39:13,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-01 00:39:13,481 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-01 00:39:13,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:39:13" (1/1) ... [2018-10-01 00:39:13,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:39:13" (1/1) ... [2018-10-01 00:39:13,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:39:13" (1/1) ... [2018-10-01 00:39:13,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:39:13" (1/1) ... [2018-10-01 00:39:13,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:39:13" (1/1) ... [2018-10-01 00:39:13,498 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:39:13" (1/1) ... [2018-10-01 00:39:13,499 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:39:13" (1/1) ... [2018-10-01 00:39:13,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-01 00:39:13,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-01 00:39:13,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-01 00:39:13,501 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-01 00:39:13,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:39:13" (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 [2018-10-01 00:39:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-01 00:39:13,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-01 00:39:13,816 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-01 00:39:13,817 INFO L202 PluginConnector]: Adding new model afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.10 12:39:13 BoogieIcfgContainer [2018-10-01 00:39:13,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-01 00:39:13,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-01 00:39:13,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-01 00:39:13,822 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-01 00:39:13,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:39:13" (1/2) ... [2018-10-01 00:39:13,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53124772 and model type afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.10 12:39:13, skipping insertion in model container [2018-10-01 00:39:13,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.10 12:39:13" (2/2) ... [2018-10-01 00:39:13,825 INFO L112 eAbstractionObserver]: Analyzing ICFG afnp2014.c.i_3.bpl [2018-10-01 00:39:13,836 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-01 00:39:13,849 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-01 00:39:13,906 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-01 00:39:13,907 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-01 00:39:13,908 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-01 00:39:13,908 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-01 00:39:13,908 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-01 00:39:13,908 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-01 00:39:13,908 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-01 00:39:13,909 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-01 00:39:13,909 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-01 00:39:13,926 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-10-01 00:39:13,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-01 00:39:13,933 INFO L367 BasicCegarLoop]: Found error trace [2018-10-01 00:39:13,934 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-01 00:39:13,935 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-01 00:39:13,945 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-01 00:39:13,945 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2018-10-01 00:39:13,948 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-01 00:39:13,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-01 00:39:14,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-01 00:39:14,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-01 00:39:14,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-01 00:39:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 00:39:14,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-01 00:39:14,184 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-01 00:39:14,185 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-01 00:39:14,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-01 00:39:14,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-01 00:39:14,202 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-10-01 00:39:14,204 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-10-01 00:39:14,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-01 00:39:14,445 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-10-01 00:39:14,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-01 00:39:14,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-10-01 00:39:14,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-01 00:39:14,466 INFO L225 Difference]: With dead ends: 11 [2018-10-01 00:39:14,467 INFO L226 Difference]: Without dead ends: 7 [2018-10-01 00:39:14,472 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-10-01 00:39:14,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-10-01 00:39:14,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-01 00:39:14,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-01 00:39:14,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-10-01 00:39:14,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-10-01 00:39:14,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-01 00:39:14,507 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-10-01 00:39:14,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-01 00:39:14,507 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-10-01 00:39:14,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-01 00:39:14,507 INFO L367 BasicCegarLoop]: Found error trace [2018-10-01 00:39:14,508 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-10-01 00:39:14,508 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-01 00:39:14,508 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-01 00:39:14,508 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times [2018-10-01 00:39:14,508 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-01 00:39:14,508 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-01 00:39:14,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-01 00:39:14,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-01 00:39:14,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-01 00:39:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 00:39:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-01 00:39:14,593 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-01 00:39:14,593 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 [2018-10-01 00:39:14,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-01 00:39:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 00:39:14,641 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-01 00:39:14,699 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-01 00:39:14,721 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-01 00:39:14,721 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-10-01 00:39:14,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-01 00:39:14,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-01 00:39:14,722 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-10-01 00:39:14,722 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-10-01 00:39:14,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-01 00:39:14,859 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-10-01 00:39:14,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-01 00:39:14,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-10-01 00:39:14,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-01 00:39:14,863 INFO L225 Difference]: With dead ends: 11 [2018-10-01 00:39:14,863 INFO L226 Difference]: Without dead ends: 9 [2018-10-01 00:39:14,864 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time [2018-10-01 00:39:14,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-10-01 00:39:14,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-10-01 00:39:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-01 00:39:14,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-10-01 00:39:14,869 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-10-01 00:39:14,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-01 00:39:14,870 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-10-01 00:39:14,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-01 00:39:14,870 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-10-01 00:39:14,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-01 00:39:14,873 INFO L367 BasicCegarLoop]: Found error trace [2018-10-01 00:39:14,873 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-10-01 00:39:14,873 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-01 00:39:14,874 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-01 00:39:14,874 INFO L82 PathProgramCache]: Analyzing trace with hash 141355773, now seen corresponding path program 2 times [2018-10-01 00:39:14,874 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-01 00:39:14,874 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-01 00:39:14,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-01 00:39:14,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-01 00:39:14,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-01 00:39:14,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 00:39:15,084 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-01 00:39:15,084 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-01 00:39:15,085 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 [2018-10-01 00:39:15,096 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-01 00:39:15,134 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-01 00:39:15,134 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-01 00:39:15,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-01 00:39:15,190 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-01 00:39:15,223 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-01 00:39:15,223 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-10-01 00:39:15,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-01 00:39:15,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-01 00:39:15,224 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-10-01 00:39:15,224 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2018-10-01 00:39:15,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-01 00:39:15,323 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2018-10-01 00:39:15,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-01 00:39:15,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-10-01 00:39:15,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-01 00:39:15,325 INFO L225 Difference]: With dead ends: 9 [2018-10-01 00:39:15,325 INFO L226 Difference]: Without dead ends: 0 [2018-10-01 00:39:15,326 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time [2018-10-01 00:39:15,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-01 00:39:15,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-01 00:39:15,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-01 00:39:15,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-01 00:39:15,328 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-10-01 00:39:15,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-01 00:39:15,332 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-01 00:39:15,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-01 00:39:15,332 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-01 00:39:15,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-01 00:39:15,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-01 00:39:15,477 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-01 00:39:15,581 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-01 00:39:15,610 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 44) no Hoare annotation was computed. [2018-10-01 00:39:15,611 INFO L422 ceAbstractionStarter]: At program point L31(lines 15 31) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~y~5) (<= 1 ULTIMATE.start_main_~x~5) (<= ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~x~5)) [2018-10-01 00:39:15,611 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 44) no Hoare annotation was computed. [2018-10-01 00:39:15,612 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 44) no Hoare annotation was computed. [2018-10-01 00:39:15,613 INFO L422 ceAbstractionStarter]: At program point L22(lines 22 32) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~y~5) (<= 1 ULTIMATE.start_main_~x~5) (<= ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~x~5)) [2018-10-01 00:39:15,613 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 43) no Hoare annotation was computed. [2018-10-01 00:39:15,613 INFO L422 ceAbstractionStarter]: At program point L41(lines 41 42) the Hoare annotation is: false [2018-10-01 00:39:15,638 INFO L202 PluginConnector]: Adding new model afnp2014.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.10 12:39:15 BoogieIcfgContainer [2018-10-01 00:39:15,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-01 00:39:15,640 INFO L168 Benchmark]: Toolchain (without parser) took 2203.74 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: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB. [2018-10-01 00:39:15,642 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 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. [2018-10-01 00:39:15,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.09 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. [2018-10-01 00:39:15,644 INFO L168 Benchmark]: Boogie Preprocessor took 20.02 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. [2018-10-01 00:39:15,646 INFO L168 Benchmark]: RCFGBuilder took 315.96 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. [2018-10-01 00:39:15,647 INFO L168 Benchmark]: TraceAbstraction took 1820.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 76.7 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. [2018-10-01 00:39:15,651 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 0.24 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 41.09 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 20.02 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 315.96 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 1820.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 76.7 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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: 15]: Loop Invariant Derived loop invariant: (0 <= main_~y~5 && 1 <= main_~x~5) && main_~y~5 <= main_~x~5 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (0 <= main_~y~5 && 1 <= main_~x~5) && main_~y~5 <= main_~x~5 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: false - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 3 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 21 HoareAnnotationTreeSize, 3 FomulaSimplifications, 32 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 513 SizeOfPredicates, 8 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/16 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/afnp2014.c.i_3.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-01_00-39-15-672.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/afnp2014.c.i_3.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-01_00-39-15-672.csv Received shutdown request...