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 [2018-09-30 20:41:15,806 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 20:41:15,808 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 20:41:15,825 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 20:41:15,825 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 20:41:15,826 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 20:41:15,830 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 20:41:15,840 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 20:41:15,842 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 20:41:15,842 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 20:41:15,843 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 20:41:15,843 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 20:41:15,844 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 20:41:15,845 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 20:41:15,849 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 20:41:15,850 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 20:41:15,852 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 20:41:15,856 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 20:41:15,860 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 20:41:15,861 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 20:41:15,862 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 20:41:15,869 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 20:41:15,874 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-30 20:41:15,885 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 [2018-09-30 20:41:15,913 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 20:41:15,913 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 20:41:15,914 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 20:41:15,914 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 20:41:15,915 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 20:41:15,915 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 20:41:15,916 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 20:41:15,917 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 20:41:15,917 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 20:41:15,917 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 20:41:15,917 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 20:41:15,917 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 20:41:15,917 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 20:41:15,918 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 20:41:15,918 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 20:41:15,918 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 20:41:15,918 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 20:41:15,920 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 20:41:15,920 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 20:41:15,920 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 20:41:15,920 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 20:41:15,921 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 20:41:15,921 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 20:41:15,921 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 20:41:15,921 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 20:41:15,921 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 20:41:15,922 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 20:41:15,922 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 20:41:15,922 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 20:41:15,922 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 20:41:15,922 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 20:41:15,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 20:41:15,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 20:41:15,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 20:41:15,991 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 20:41:15,991 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 20:41:15,992 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/count_up_down.i_3.bpl [2018-09-30 20:41:15,992 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/count_up_down.i_3.bpl' [2018-09-30 20:41:16,050 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 20:41:16,054 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 20:41:16,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 20:41:16,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 20:41:16,055 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 20:41:16,074 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 30.09 08:41:16" (1/1) ... [2018-09-30 20:41:16,086 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 30.09 08:41:16" (1/1) ... [2018-09-30 20:41:16,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 20:41:16,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 20:41:16,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 20:41:16,095 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 20:41:16,106 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 30.09 08:41:16" (1/1) ... [2018-09-30 20:41:16,106 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 30.09 08:41:16" (1/1) ... [2018-09-30 20:41:16,107 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 30.09 08:41:16" (1/1) ... [2018-09-30 20:41:16,107 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 30.09 08:41:16" (1/1) ... [2018-09-30 20:41:16,112 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 30.09 08:41:16" (1/1) ... [2018-09-30 20:41:16,114 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 30.09 08:41:16" (1/1) ... [2018-09-30 20:41:16,115 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 30.09 08:41:16" (1/1) ... [2018-09-30 20:41:16,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 20:41:16,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 20:41:16,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 20:41:16,118 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 20:41:16,119 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 30.09 08:41:16" (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 [2018-09-30 20:41:16,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 20:41:16,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 20:41:16,431 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 20:41:16,432 INFO L202 PluginConnector]: Adding new model count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 08:41:16 BoogieIcfgContainer [2018-09-30 20:41:16,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 20:41:16,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 20:41:16,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 20:41:16,438 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 20:41:16,438 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 30.09 08:41:16" (1/2) ... [2018-09-30 20:41:16,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ddef99f and model type count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 08:41:16, skipping insertion in model container [2018-09-30 20:41:16,439 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 30.09 08:41:16" (2/2) ... [2018-09-30 20:41:16,442 INFO L112 eAbstractionObserver]: Analyzing ICFG count_up_down.i_3.bpl [2018-09-30 20:41:16,453 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 20:41:16,465 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 20:41:16,523 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 20:41:16,524 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 20:41:16,524 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 20:41:16,524 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 20:41:16,524 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 20:41:16,525 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 20:41:16,525 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 20:41:16,525 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 20:41:16,525 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 20:41:16,543 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-09-30 20:41:16,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 20:41:16,558 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:41:16,559 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-30 20:41:16,563 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 20:41:16,570 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:41:16,570 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-09-30 20:41:16,572 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:41:16,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:41:16,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:41:16,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:41:16,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:41:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:41:16,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 20:41:16,810 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 20:41:16,811 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-30 20:41:16,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-30 20:41:16,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-30 20:41:16,829 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:41:16,831 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-09-30 20:41:17,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:41:17,012 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-09-30 20:41:17,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-30 20:41:17,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-09-30 20:41:17,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:41:17,029 INFO L225 Difference]: With dead ends: 11 [2018-09-30 20:41:17,029 INFO L226 Difference]: Without dead ends: 7 [2018-09-30 20:41:17,033 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 20:41:17,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-09-30 20:41:17,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-09-30 20:41:17,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-30 20:41:17,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-30 20:41:17,069 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-30 20:41:17,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:41:17,070 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-30 20:41:17,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-30 20:41:17,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-30 20:41:17,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-30 20:41:17,070 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 20:41:17,071 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-30 20:41:17,071 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 20:41:17,071 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 20:41:17,071 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-09-30 20:41:17,071 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 20:41:17,072 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 20:41:17,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:41:17,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:41:17,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 20:41:17,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:41:17,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 20:41:17,271 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 20:41:17,272 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 [2018-09-30 20:41:17,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 20:41:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 20:41:17,313 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 20:41:17,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-30 20:41:17,607 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 20:41:17,607 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2018-09-30 20:41:17,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-30 20:41:17,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-30 20:41:17,608 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 20:41:17,609 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2018-09-30 20:41:17,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 20:41:17,868 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-09-30 20:41:17,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-30 20:41:17,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2018-09-30 20:41:17,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 20:41:17,870 INFO L225 Difference]: With dead ends: 9 [2018-09-30 20:41:17,870 INFO L226 Difference]: Without dead ends: 0 [2018-09-30 20:41:17,871 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time [2018-09-30 20:41:17,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-30 20:41:17,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-30 20:41:17,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-30 20:41:17,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-30 20:41:17,872 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-09-30 20:41:17,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 20:41:17,872 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-30 20:41:17,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-30 20:41:17,873 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-30 20:41:17,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 20:41:17,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-30 20:41:18,126 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 23 [2018-09-30 20:41:18,377 WARN L178 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 23 [2018-09-30 20:41:18,381 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 44) no Hoare annotation was computed. [2018-09-30 20:41:18,381 INFO L422 ceAbstractionStarter]: At program point L32(lines 32 42) the Hoare annotation is: false [2018-09-30 20:41:18,382 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 44) no Hoare annotation was computed. [2018-09-30 20:41:18,382 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 44) no Hoare annotation was computed. [2018-09-30 20:41:18,382 INFO L422 ceAbstractionStarter]: At program point L22(lines 22 33) the Hoare annotation is: (or (let ((.cse0 (+ ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~x~5))) (and (<= ULTIMATE.start_main_~n~5 .cse0) (<= ULTIMATE.start_main_~n~5 (+ (* 4294967296 (div (+ (- ULTIMATE.start_main_~y~5) ULTIMATE.start_main_~n~5) 4294967296)) 4294967295)) (<= .cse0 ULTIMATE.start_main_~n~5) (<= 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))) [2018-09-30 20:41:18,382 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 43) no Hoare annotation was computed. [2018-09-30 20:41:18,383 INFO L422 ceAbstractionStarter]: At program point L41(lines 19 41) the Hoare annotation is: (or (let ((.cse0 (+ ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~x~5))) (and (<= ULTIMATE.start_main_~n~5 .cse0) (<= ULTIMATE.start_main_~n~5 (+ (* 4294967296 (div (+ (- ULTIMATE.start_main_~y~5) ULTIMATE.start_main_~n~5) 4294967296)) 4294967295)) (<= .cse0 ULTIMATE.start_main_~n~5) (<= 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))) [2018-09-30 20:41:18,398 INFO L202 PluginConnector]: Adding new model count_up_down.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 08:41:18 BoogieIcfgContainer [2018-09-30 20:41:18,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 20:41:18,399 INFO L168 Benchmark]: Toolchain (without parser) took 2348.63 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. [2018-09-30 20:41:18,401 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 20:41:18,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.55 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 20:41:18,403 INFO L168 Benchmark]: Boogie Preprocessor took 22.93 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 20:41:18,404 INFO L168 Benchmark]: RCFGBuilder took 314.59 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-30 20:41:18,405 INFO L168 Benchmark]: TraceAbstraction took 1965.65 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: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2018-09-30 20:41:18,409 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 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.55 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.93 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 314.59 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1965.65 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: 55.5 MB). Peak memory consumption was 55.5 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: (((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) && 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: (((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) && 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, 1.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 6 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 75 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 703 SizeOfPredicates, 5 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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-0-2018-09-30_20-41-18-423.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-0-2018-09-30_20-41-18-423.csv Received shutdown request...