java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/linear_sea.ch.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f57a05f [2019-01-08 13:51:48,928 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-08 13:51:48,930 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-08 13:51:48,942 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-08 13:51:48,943 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-08 13:51:48,944 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-08 13:51:48,945 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-08 13:51:48,947 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-08 13:51:48,949 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-08 13:51:48,949 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-08 13:51:48,951 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-01-08 13:51:49,002 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2019-01-08 13:51:49,025 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-08 13:51:49,025 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-08 13:51:49,026 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-08 13:51:49,026 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-08 13:51:49,026 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-08 13:51:49,027 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-08 13:51:49,027 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-08 13:51:49,027 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-08 13:51:49,029 INFO L133 SettingsManager]: * Explicit value domain=true [2019-01-08 13:51:49,029 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-08 13:51:49,029 INFO L133 SettingsManager]: * Octagon Domain=false [2019-01-08 13:51:49,029 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-01-08 13:51:49,029 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-08 13:51:49,030 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-08 13:51:49,030 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-08 13:51:49,031 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-08 13:51:49,031 INFO L133 SettingsManager]: * Use SBE=true [2019-01-08 13:51:49,031 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-08 13:51:49,031 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-08 13:51:49,031 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-08 13:51:49,032 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-08 13:51:49,034 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-08 13:51:49,034 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-08 13:51:49,034 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-08 13:51:49,034 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-08 13:51:49,034 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-08 13:51:49,034 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-08 13:51:49,035 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-08 13:51:49,035 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-08 13:51:49,035 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-08 13:51:49,035 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-08 13:51:49,035 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8192 -smt2 -in -t:2000 [2019-01-08 13:51:49,035 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-08 13:51:49,036 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-08 13:51:49,036 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-08 13:51:49,036 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-08 13:51:49,036 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-08 13:51:49,036 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8192 -smt2 -in [2019-01-08 13:51:49,036 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-08 13:51:49,037 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-08 13:51:49,072 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-08 13:51:49,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-08 13:51:49,090 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-08 13:51:49,092 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-08 13:51:49,092 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-08 13:51:49,093 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/linear_sea.ch.i_4.bpl [2019-01-08 13:51:49,093 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/linear_sea.ch.i_4.bpl' [2019-01-08 13:51:49,135 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-08 13:51:49,137 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-08 13:51:49,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-08 13:51:49,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-08 13:51:49,138 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-08 13:51:49,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 01:51:49" (1/1) ... [2019-01-08 13:51:49,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 01:51:49" (1/1) ... [2019-01-08 13:51:49,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-08 13:51:49,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-08 13:51:49,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-08 13:51:49,181 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-08 13:51:49,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 01:51:49" (1/1) ... [2019-01-08 13:51:49,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 01:51:49" (1/1) ... [2019-01-08 13:51:49,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 01:51:49" (1/1) ... [2019-01-08 13:51:49,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 01:51:49" (1/1) ... [2019-01-08 13:51:49,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 01:51:49" (1/1) ... [2019-01-08 13:51:49,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 01:51:49" (1/1) ... [2019-01-08 13:51:49,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 01:51:49" (1/1) ... [2019-01-08 13:51:49,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-08 13:51:49,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-08 13:51:49,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-08 13:51:49,208 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-08 13:51:49,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 01:51:49" (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:8192 -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:8192 -smt2 -in -t:2000 [2019-01-08 13:51:49,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-08 13:51:49,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-08 13:51:49,567 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-08 13:51:49,567 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-08 13:51:49,569 INFO L202 PluginConnector]: Adding new model linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 01:51:49 BoogieIcfgContainer [2019-01-08 13:51:49,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-08 13:51:49,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-08 13:51:49,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-08 13:51:49,573 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-08 13:51:49,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.01 01:51:49" (1/2) ... [2019-01-08 13:51:49,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d0758d and model type linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 01:51:49, skipping insertion in model container [2019-01-08 13:51:49,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 01:51:49" (2/2) ... [2019-01-08 13:51:49,578 INFO L112 eAbstractionObserver]: Analyzing ICFG linear_sea.ch.i_4.bpl [2019-01-08 13:51:49,589 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-08 13:51:49,597 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-08 13:51:49,616 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-08 13:51:49,652 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-08 13:51:49,653 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-08 13:51:49,653 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-08 13:51:49,653 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-08 13:51:49,653 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-08 13:51:49,654 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-08 13:51:49,654 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-08 13:51:49,654 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-08 13:51:49,670 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-01-08 13:51:49,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-08 13:51:49,676 INFO L394 BasicCegarLoop]: Found error trace [2019-01-08 13:51:49,677 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-08 13:51:49,680 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-08 13:51:49,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-08 13:51:49,686 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2019-01-08 13:51:49,689 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-08 13:51:49,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-08 13:51:49,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-08 13:51:49,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-08 13:51:49,747 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-08 13:51:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-08 13:51:50,144 WARN L181 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 10 [2019-01-08 13:51:50,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-08 13:51:50,170 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-08 13:51:50,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-08 13:51:50,171 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-08 13:51:50,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-08 13:51:50,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-08 13:51:50,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-08 13:51:50,195 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-01-08 13:51:50,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-08 13:51:50,252 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-01-08 13:51:50,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-08 13:51:50,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-08 13:51:50,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-08 13:51:50,265 INFO L225 Difference]: With dead ends: 11 [2019-01-08 13:51:50,266 INFO L226 Difference]: Without dead ends: 7 [2019-01-08 13:51:50,269 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-08 13:51:50,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-01-08 13:51:50,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-01-08 13:51:50,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-08 13:51:50,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-01-08 13:51:50,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-01-08 13:51:50,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-08 13:51:50,308 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-01-08 13:51:50,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-08 13:51:50,308 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-01-08 13:51:50,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-08 13:51:50,309 INFO L394 BasicCegarLoop]: Found error trace [2019-01-08 13:51:50,309 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-01-08 13:51:50,309 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-08 13:51:50,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-08 13:51:50,310 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2019-01-08 13:51:50,310 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-08 13:51:50,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-08 13:51:50,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-08 13:51:50,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-08 13:51:50,311 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-08 13:51:50,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-08 13:51:50,650 WARN L181 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 16 [2019-01-08 13:51:50,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-08 13:51:50,731 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-08 13:51:50,731 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-08 13:51:50,732 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 7 with the following transitions: [2019-01-08 13:51:50,734 INFO L207 CegarAbsIntRunner]: [0], [2], [6], [8], [10] [2019-01-08 13:51:50,790 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-01-08 13:51:50,791 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-08 13:51:51,065 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-08 13:51:51,068 INFO L272 AbstractInterpreter]: Visited 5 different actions 17 times. Merged at 4 different actions 12 times. Widened at 1 different actions 1 times. Performed 426 root evaluator evaluations with a maximum evaluation depth of 9. Performed 426 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-01-08 13:51:51,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-08 13:51:51,077 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-01-08 13:51:51,078 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-08 13:51:51,078 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2019-01-08 13:51:51,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-08 13:51:51,093 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-08 13:51:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-08 13:51:51,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-08 13:51:51,387 WARN L181 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-01-08 13:51:51,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-08 13:51:51,519 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-08 13:51:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-08 13:51:51,697 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-08 13:51:51,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2019-01-08 13:51:51,698 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-08 13:51:51,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-08 13:51:51,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-08 13:51:51,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-01-08 13:51:51,700 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2019-01-08 13:51:51,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-08 13:51:51,811 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-01-08 13:51:51,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-08 13:51:51,812 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-01-08 13:51:51,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-08 13:51:51,812 INFO L225 Difference]: With dead ends: 7 [2019-01-08 13:51:51,813 INFO L226 Difference]: Without dead ends: 0 [2019-01-08 13:51:51,814 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-08 13:51:51,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-08 13:51:51,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-08 13:51:51,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-08 13:51:51,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-08 13:51:51,815 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-01-08 13:51:51,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-08 13:51:51,816 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-08 13:51:51,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-08 13:51:51,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-08 13:51:51,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-08 13:51:51,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-08 13:51:51,939 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 11 102) no Hoare annotation was computed. [2019-01-08 13:51:51,940 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 11 102) no Hoare annotation was computed. [2019-01-08 13:51:51,940 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 11 102) no Hoare annotation was computed. [2019-01-08 13:51:51,940 INFO L444 ceAbstractionStarter]: At program point L91(lines 91 100) the Hoare annotation is: false [2019-01-08 13:51:51,940 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 101) no Hoare annotation was computed. [2019-01-08 13:51:51,941 INFO L444 ceAbstractionStarter]: At program point L75(lines 75 92) the Hoare annotation is: (let ((.cse1 (div ~SIZE 4294967296))) (let ((.cse0 (* 4294967296 .cse1))) (and (<= ~SIZE 536870912) (= ~SIZE (+ .cse0 ULTIMATE.start_linear_search_~n)) (<= (+ ULTIMATE.start_linear_search_~j~5 .cse0 1) (+ (* 4294967296 (div ULTIMATE.start_linear_search_~j~5 4294967296)) ~SIZE)) (< 0 (+ (div ULTIMATE.start_linear_search_~n 4294967296) .cse1 1))))) [2019-01-08 13:51:51,941 INFO L444 ceAbstractionStarter]: At program point L99(lines 65 99) the Hoare annotation is: (let ((.cse0 (div ~SIZE 4294967296))) (and (<= ~SIZE 536870912) (= ~SIZE (+ (* 4294967296 .cse0) ULTIMATE.start_linear_search_~n)) (< 0 (+ (div ULTIMATE.start_linear_search_~n 4294967296) .cse0 1)))) [2019-01-08 13:51:51,952 INFO L202 PluginConnector]: Adding new model linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.01 01:51:51 BoogieIcfgContainer [2019-01-08 13:51:51,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-08 13:51:51,953 INFO L168 Benchmark]: Toolchain (without parser) took 2817.13 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 711.5 MB). Free memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: -695.7 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-01-08 13:51:51,955 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 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. [2019-01-08 13:51:51,955 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.14 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. [2019-01-08 13:51:51,956 INFO L168 Benchmark]: Boogie Preprocessor took 26.74 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. [2019-01-08 13:51:51,956 INFO L168 Benchmark]: RCFGBuilder took 361.46 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. [2019-01-08 13:51:51,957 INFO L168 Benchmark]: TraceAbstraction took 2382.53 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 711.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -716.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-01-08 13:51:51,962 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 0.25 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 42.14 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 26.74 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 361.46 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 2382.53 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 711.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -716.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 101]: 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: 75]: Loop Invariant Derived loop invariant: ((~SIZE <= 536870912 && ~SIZE == 4294967296 * (~SIZE / 4294967296) + linear_search_~n) && linear_search_~j~5 + 4294967296 * (~SIZE / 4294967296) + 1 <= 4294967296 * (linear_search_~j~5 / 4294967296) + ~SIZE) && 0 < linear_search_~n / 4294967296 + ~SIZE / 4294967296 + 1 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (~SIZE <= 536870912 && ~SIZE == 4294967296 * (~SIZE / 4294967296) + linear_search_~n) && 0 < linear_search_~n / 4294967296 + ~SIZE / 4294967296 + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 8 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s 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, 0.3s AbstIntTime, 1 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, 5 NumberOfFragments, 63 HoareAnnotationTreeSize, 3 FomulaSimplifications, 104 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 3 QuantifiedInterpolants, 1226 SizeOfPredicates, 3 NumberOfNonLiveVariables, 93 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...