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/count_up_down.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cc990c [2018-10-01 00:40:30,349 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-01 00:40:30,351 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-01 00:40:30,366 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-01 00:40:30,366 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-01 00:40:30,367 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-01 00:40:30,369 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-01 00:40:30,370 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-01 00:40:30,372 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-01 00:40:30,373 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-01 00:40:30,374 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-01 00:40:30,399 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 00:40:30,418 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-01 00:40:30,418 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-01 00:40:30,419 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-01 00:40:30,419 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-01 00:40:30,420 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-01 00:40:30,420 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-01 00:40:30,420 INFO L133 SettingsManager]: * Use SBE=true [2018-10-01 00:40:30,420 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-01 00:40:30,421 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-01 00:40:30,421 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-01 00:40:30,421 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-01 00:40:30,421 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-01 00:40:30,421 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-01 00:40:30,422 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-01 00:40:30,422 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-01 00:40:30,422 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-01 00:40:30,422 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-01 00:40:30,422 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-01 00:40:30,423 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-01 00:40:30,423 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-01 00:40:30,423 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-01 00:40:30,423 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-01 00:40:30,423 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-01 00:40:30,423 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-01 00:40:30,424 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-01 00:40:30,424 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-01 00:40:30,424 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-01 00:40:30,424 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-01 00:40:30,424 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-01 00:40:30,425 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-01 00:40:30,425 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-10-01 00:40:30,486 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-01 00:40:30,499 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-01 00:40:30,502 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-01 00:40:30,504 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-01 00:40:30,504 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-01 00:40:30,505 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/count_up_down.i_3.bpl [2018-10-01 00:40:30,506 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/count_up_down.i_3.bpl' [2018-10-01 00:40:30,563 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-01 00:40:30,567 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-10-01 00:40:30,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-01 00:40:30,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-01 00:40:30,568 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-01 00:40:30,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:40:30" (1/1) ... [2018-10-01 00:40:30,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:40:30" (1/1) ... [2018-10-01 00:40:30,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-01 00:40:30,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-01 00:40:30,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-01 00:40:30,604 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-01 00:40:30,615 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:40:30" (1/1) ... [2018-10-01 00:40:30,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:40:30" (1/1) ... [2018-10-01 00:40:30,616 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:40:30" (1/1) ... [2018-10-01 00:40:30,616 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:40:30" (1/1) ... [2018-10-01 00:40:30,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:40:30" (1/1) ... [2018-10-01 00:40:30,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:40:30" (1/1) ... [2018-10-01 00:40:30,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:40:30" (1/1) ... [2018-10-01 00:40:30,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-01 00:40:30,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-01 00:40:30,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-01 00:40:30,624 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-01 00:40:30,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:40:30" (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 00:40:30,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-01 00:40:30,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-01 00:40:30,891 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-01 00:40:30,892 INFO L202 PluginConnector]: Adding new model count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.10 12:40:30 BoogieIcfgContainer [2018-10-01 00:40:30,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-01 00:40:30,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-01 00:40:30,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-01 00:40:30,896 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-01 00:40:30,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.10 12:40:30" (1/2) ... [2018-10-01 00:40:30,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b152a50 and model type count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.10 12:40:30, skipping insertion in model container [2018-10-01 00:40:30,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.10 12:40:30" (2/2) ... [2018-10-01 00:40:30,899 INFO L112 eAbstractionObserver]: Analyzing ICFG count_up_down.i_3.bpl [2018-10-01 00:40:30,909 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-01 00:40:30,918 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-01 00:40:30,966 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-01 00:40:30,967 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-10-01 00:40:30,967 INFO L382 AbstractCegarLoop]: Hoare is true [2018-10-01 00:40:30,967 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-01 00:40:30,967 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-01 00:40:30,968 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-01 00:40:30,968 INFO L386 AbstractCegarLoop]: Difference is false [2018-10-01 00:40:30,968 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-01 00:40:30,968 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-01 00:40:30,983 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-10-01 00:40:30,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-10-01 00:40:30,989 INFO L367 BasicCegarLoop]: Found error trace [2018-10-01 00:40:30,990 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-10-01 00:40:30,992 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-01 00:40:30,998 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-01 00:40:30,999 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-10-01 00:40:31,001 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-01 00:40:31,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-01 00:40:31,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-01 00:40:31,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-01 00:40:31,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-01 00:40:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 00:40:31,196 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 00:40:31,198 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-01 00:40:31,199 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-01 00:40:31,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-01 00:40:31,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-01 00:40:31,214 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-10-01 00:40:31,216 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-10-01 00:40:31,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-01 00:40:31,392 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-10-01 00:40:31,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-01 00:40:31,395 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-10-01 00:40:31,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-01 00:40:31,407 INFO L225 Difference]: With dead ends: 11 [2018-10-01 00:40:31,408 INFO L226 Difference]: Without dead ends: 7 [2018-10-01 00:40:31,411 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 00:40:31,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-10-01 00:40:31,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-10-01 00:40:31,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-10-01 00:40:31,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-10-01 00:40:31,443 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-10-01 00:40:31,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-01 00:40:31,444 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-10-01 00:40:31,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-01 00:40:31,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-10-01 00:40:31,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-01 00:40:31,445 INFO L367 BasicCegarLoop]: Found error trace [2018-10-01 00:40:31,445 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-10-01 00:40:31,445 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-01 00:40:31,446 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-01 00:40:31,446 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-10-01 00:40:31,446 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-01 00:40:31,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-01 00:40:31,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-01 00:40:31,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-01 00:40:31,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-01 00:40:31,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 00:40:31,704 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 00:40:31,704 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-01 00:40:31,705 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 00:40:31,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-01 00:40:31,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 00:40:31,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-01 00:40:31,949 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 00:40:31,974 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-01 00:40:31,974 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2018-10-01 00:40:31,975 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-01 00:40:31,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-01 00:40:31,975 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-10-01 00:40:31,976 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2018-10-01 00:40:34,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-01 00:40:34,246 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-10-01 00:40:34,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-01 00:40:34,252 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2018-10-01 00:40:34,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-01 00:40:34,252 INFO L225 Difference]: With dead ends: 13 [2018-10-01 00:40:34,253 INFO L226 Difference]: Without dead ends: 11 [2018-10-01 00:40:34,254 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time [2018-10-01 00:40:34,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-10-01 00:40:34,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-10-01 00:40:34,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-10-01 00:40:34,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2018-10-01 00:40:34,262 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 6 [2018-10-01 00:40:34,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-01 00:40:34,262 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2018-10-01 00:40:34,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-01 00:40:34,263 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2018-10-01 00:40:34,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-01 00:40:34,263 INFO L367 BasicCegarLoop]: Found error trace [2018-10-01 00:40:34,264 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2018-10-01 00:40:34,264 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-01 00:40:34,264 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-10-01 00:40:34,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1946815861, now seen corresponding path program 2 times [2018-10-01 00:40:34,265 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-01 00:40:34,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-01 00:40:34,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-01 00:40:34,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-01 00:40:34,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-01 00:40:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-01 00:40:35,905 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-01 00:40:35,906 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-01 00:40:35,906 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 00:40:35,916 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-01 00:40:35,936 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-01 00:40:35,937 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-01 00:40:35,939 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-01 00:40:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-01 00:40:36,313 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-01 00:40:36,313 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-10-01 00:40:36,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-01 00:40:36,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-01 00:40:36,314 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-10-01 00:40:36,315 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 9 states. [2018-10-01 00:40:39,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-01 00:40:39,089 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2018-10-01 00:40:39,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-01 00:40:39,092 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2018-10-01 00:40:39,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-01 00:40:39,092 INFO L225 Difference]: With dead ends: 13 [2018-10-01 00:40:39,092 INFO L226 Difference]: Without dead ends: 0 [2018-10-01 00:40:39,093 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s Time [2018-10-01 00:40:39,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-01 00:40:39,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-01 00:40:39,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-01 00:40:39,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-01 00:40:39,094 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-10-01 00:40:39,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-01 00:40:39,094 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-01 00:40:39,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-01 00:40:39,095 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-01 00:40:39,095 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-01 00:40:39,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-01 00:40:48,184 WARN L178 SmtUtils]: Spent 9.01 s on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-10-01 00:40:51,689 WARN L178 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2018-10-01 00:40:51,694 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 44) no Hoare annotation was computed. [2018-10-01 00:40:51,695 INFO L422 ceAbstractionStarter]: At program point L32(lines 32 42) the Hoare annotation is: false [2018-10-01 00:40:51,695 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 44) no Hoare annotation was computed. [2018-10-01 00:40:51,695 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 44) no Hoare annotation was computed. [2018-10-01 00:40:51,695 INFO L422 ceAbstractionStarter]: At program point L22(lines 22 33) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~x~5))) (let ((.cse1 (- ULTIMATE.start_main_~y~5)) (.cse2 (<= .cse0 ULTIMATE.start_main_~n~5)) (.cse3 (<= (* 4294967296 (div ULTIMATE.start_main_~n~5 4294967296)) ULTIMATE.start_main_~x~5))) (or (and (<= 3 ULTIMATE.start_main_~y~5) (<= ULTIMATE.start_main_~n~5 .cse0) (<= ULTIMATE.start_main_~n~5 (+ (* 4294967296 (div (+ .cse1 ULTIMATE.start_main_~n~5) 4294967296)) 4294967295)) .cse2) (and (= ULTIMATE.start_main_~n~5 (+ ULTIMATE.start_main_~x~5 2)) (<= 2 ULTIMATE.start_main_~y~5) (<= ULTIMATE.start_main_~x~5 (+ (* 4294967296 (div (+ ULTIMATE.start_main_~n~5 (+ .cse1 (+ (- ULTIMATE.start_main_~x~5) (* 4294967296 (div ULTIMATE.start_main_~x~5 4294967296))))) 4294967296)) 4294967294)) .cse3) (and .cse2 (= ULTIMATE.start_main_~n~5 (+ ULTIMATE.start_main_~x~5 1)) .cse3 (<= 1 ULTIMATE.start_main_~y~5)) (and (<= 0 ULTIMATE.start_main_~y~5) (= ULTIMATE.start_main_~x~5 ULTIMATE.start_main_~n~5) (<= ULTIMATE.start_main_~y~5 0))))) [2018-10-01 00:40:51,695 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 43) no Hoare annotation was computed. [2018-10-01 00:40:51,696 INFO L422 ceAbstractionStarter]: At program point L41(lines 19 41) the Hoare annotation is: (let ((.cse1 (- ULTIMATE.start_main_~y~5))) (or (let ((.cse0 (+ ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~x~5))) (and (<= 3 ULTIMATE.start_main_~y~5) (<= ULTIMATE.start_main_~n~5 .cse0) (<= ULTIMATE.start_main_~n~5 (+ (* 4294967296 (div (+ .cse1 ULTIMATE.start_main_~n~5) 4294967296)) 4294967295)) (<= .cse0 ULTIMATE.start_main_~n~5))) (and (= ULTIMATE.start_main_~n~5 (+ ULTIMATE.start_main_~x~5 2)) (<= 2 ULTIMATE.start_main_~y~5) (<= ULTIMATE.start_main_~y~5 2) (<= (* 4294967296 (div ULTIMATE.start_main_~n~5 4294967296)) ULTIMATE.start_main_~x~5)) (and (<= ULTIMATE.start_main_~x~5 (+ (* 4294967296 (div (+ .cse1 (+ (- ULTIMATE.start_main_~x~5) (+ ULTIMATE.start_main_~n~5 (* 4294967296 (div ULTIMATE.start_main_~x~5 4294967296))))) 4294967296)) 4294967294)) (= ULTIMATE.start_main_~n~5 (+ ULTIMATE.start_main_~x~5 1)) (<= 1 ULTIMATE.start_main_~y~5)) (and (<= 0 ULTIMATE.start_main_~y~5) (= ULTIMATE.start_main_~x~5 ULTIMATE.start_main_~n~5) (<= ULTIMATE.start_main_~y~5 0)))) [2018-10-01 00:40:51,711 INFO L202 PluginConnector]: Adding new model count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.10 12:40:51 BoogieIcfgContainer [2018-10-01 00:40:51,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-01 00:40:51,712 INFO L168 Benchmark]: Toolchain (without parser) took 21147.76 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: 161.2 MB). Peak memory consumption was 161.2 MB. Max. memory is 7.1 GB. [2018-10-01 00:40:51,714 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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 00:40:51,714 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.86 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. [2018-10-01 00:40:51,715 INFO L168 Benchmark]: Boogie Preprocessor took 19.55 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 00:40:51,716 INFO L168 Benchmark]: RCFGBuilder took 268.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-01 00:40:51,717 INFO L168 Benchmark]: TraceAbstraction took 20818.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. [2018-10-01 00:40:51,723 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 0.22 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 35.86 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 Preprocessor took 19.55 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 268.13 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20818.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. * 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: 32]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((3 <= main_~y~5 && main_~n~5 <= main_~y~5 + main_~x~5) && main_~n~5 <= 4294967296 * ((-main_~y~5 + main_~n~5) / 4294967296) + 4294967295) && main_~y~5 + main_~x~5 <= main_~n~5) || (((main_~n~5 == main_~x~5 + 2 && 2 <= main_~y~5) && main_~x~5 <= 4294967296 * ((main_~n~5 + (-main_~y~5 + (-main_~x~5 + 4294967296 * (main_~x~5 / 4294967296)))) / 4294967296) + 4294967294) && 4294967296 * (main_~n~5 / 4294967296) <= main_~x~5)) || (((main_~y~5 + main_~x~5 <= main_~n~5 && main_~n~5 == main_~x~5 + 1) && 4294967296 * (main_~n~5 / 4294967296) <= main_~x~5) && 1 <= main_~y~5)) || ((0 <= main_~y~5 && main_~x~5 == main_~n~5) && main_~y~5 <= 0) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (((((3 <= main_~y~5 && main_~n~5 <= main_~y~5 + main_~x~5) && main_~n~5 <= 4294967296 * ((-main_~y~5 + main_~n~5) / 4294967296) + 4294967295) && main_~y~5 + main_~x~5 <= main_~n~5) || (((main_~n~5 == main_~x~5 + 2 && 2 <= main_~y~5) && main_~y~5 <= 2) && 4294967296 * (main_~n~5 / 4294967296) <= main_~x~5)) || ((main_~x~5 <= 4294967296 * ((-main_~y~5 + (-main_~x~5 + (main_~n~5 + 4294967296 * (main_~x~5 / 4294967296)))) / 4294967296) + 4294967294 && main_~n~5 == main_~x~5 + 1) && 1 <= main_~y~5)) || ((0 <= main_~y~5 && main_~x~5 == main_~n~5) && main_~y~5 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 20.7s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 5.2s AutomataDifference, 0.0s DeadEndRemovalTime, 12.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 0 SDslu, 25 SDs, 0 SdLazy, 36 SolverSat, 4 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred 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, 11 NumberOfFragments, 182 HoareAnnotationTreeSize, 3 FomulaSimplifications, 68 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 133 FormulaSimplificationTreeSizeReductionInter, 12.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 3709 SizeOfPredicates, 10 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 6/28 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/count_up_down.i_3.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-10-01_00-40-51-750.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/count_up_down.i_3.bpl_svcomp-Reach-32bit-Automizer_Default_PUPT.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-01_00-40-51-750.csv Received shutdown request...