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/array.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-e1a14da [2018-12-24 13:46:56,900 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-24 13:46:56,903 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-24 13:46:56,915 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-24 13:46:56,972 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 [2018-12-24 13:46:56,995 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-24 13:46:56,995 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-24 13:46:56,996 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-24 13:46:56,996 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-24 13:46:56,997 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-24 13:46:56,997 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-24 13:46:56,997 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2018-12-24 13:46:57,000 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-24 13:46:57,001 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-24 13:46:57,001 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-24 13:46:57,001 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-24 13:46:57,001 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-24 13:46:57,002 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-24 13:46:57,002 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-24 13:46:57,003 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-24 13:46:57,004 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-24 13:46:57,004 INFO L133 SettingsManager]: * Use SBE=true [2018-12-24 13:46:57,004 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-24 13:46:57,004 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-24 13:46:57,007 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-24 13:46:57,007 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-24 13:46:57,007 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-24 13:46:57,007 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-24 13:46:57,008 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-24 13:46:57,008 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-24 13:46:57,008 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-24 13:46:57,008 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-24 13:46:57,009 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-24 13:46:57,009 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-24 13:46:57,009 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-24 13:46:57,009 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-24 13:46:57,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-24 13:46:57,010 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-24 13:46:57,010 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-24 13:46:57,010 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-24 13:46:57,010 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-24 13:46:57,010 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-24 13:46:57,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-24 13:46:57,011 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-24 13:46:57,011 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-24 13:46:57,050 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-24 13:46:57,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-24 13:46:57,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-24 13:46:57,081 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-24 13:46:57,081 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-24 13:46:57,082 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/array.i_3.bpl [2018-12-24 13:46:57,083 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/array.i_3.bpl' [2018-12-24 13:46:57,135 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-24 13:46:57,136 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-24 13:46:57,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-24 13:46:57,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-24 13:46:57,137 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-24 13:46:57,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:46:57" (1/1) ... [2018-12-24 13:46:57,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:46:57" (1/1) ... [2018-12-24 13:46:57,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-24 13:46:57,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-24 13:46:57,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-24 13:46:57,180 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-24 13:46:57,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:46:57" (1/1) ... [2018-12-24 13:46:57,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:46:57" (1/1) ... [2018-12-24 13:46:57,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:46:57" (1/1) ... [2018-12-24 13:46:57,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:46:57" (1/1) ... [2018-12-24 13:46:57,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:46:57" (1/1) ... [2018-12-24 13:46:57,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:46:57" (1/1) ... [2018-12-24 13:46:57,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:46:57" (1/1) ... [2018-12-24 13:46:57,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-24 13:46:57,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-24 13:46:57,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-24 13:46:57,207 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-24 13:46:57,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:46:57" (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 [2018-12-24 13:46:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-24 13:46:57,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-24 13:46:57,564 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-24 13:46:57,564 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-24 13:46:57,564 INFO L202 PluginConnector]: Adding new model array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 01:46:57 BoogieIcfgContainer [2018-12-24 13:46:57,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-24 13:46:57,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-24 13:46:57,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-24 13:46:57,571 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-24 13:46:57,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 01:46:57" (1/2) ... [2018-12-24 13:46:57,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2335a4e5 and model type array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 01:46:57, skipping insertion in model container [2018-12-24 13:46:57,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 01:46:57" (2/2) ... [2018-12-24 13:46:57,575 INFO L112 eAbstractionObserver]: Analyzing ICFG array.i_3.bpl [2018-12-24 13:46:57,587 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-24 13:46:57,595 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-24 13:46:57,614 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-24 13:46:57,657 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-24 13:46:57,657 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-24 13:46:57,658 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-24 13:46:57,658 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-24 13:46:57,658 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-24 13:46:57,658 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-24 13:46:57,658 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-24 13:46:57,659 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-24 13:46:57,676 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-12-24 13:46:57,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-24 13:46:57,683 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 13:46:57,684 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-24 13:46:57,687 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 13:46:57,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 13:46:57,694 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-12-24 13:46:57,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 13:46:57,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:46:57,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 13:46:57,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:46:57,758 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 13:46:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 13:46:58,152 WARN L181 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 13 [2018-12-24 13:46:58,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:46:58,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-24 13:46:58,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-24 13:46:58,157 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-24 13:46:58,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-24 13:46:58,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-24 13:46:58,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-24 13:46:58,181 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-12-24 13:46:58,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 13:46:58,232 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-12-24 13:46:58,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-24 13:46:58,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-24 13:46:58,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 13:46:58,247 INFO L225 Difference]: With dead ends: 9 [2018-12-24 13:46:58,247 INFO L226 Difference]: Without dead ends: 5 [2018-12-24 13:46:58,250 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-24 13:46:58,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-12-24 13:46:58,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-12-24 13:46:58,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-24 13:46:58,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-12-24 13:46:58,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-12-24 13:46:58,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 13:46:58,282 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-12-24 13:46:58,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-24 13:46:58,282 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-12-24 13:46:58,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-24 13:46:58,283 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 13:46:58,283 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-24 13:46:58,283 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 13:46:58,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 13:46:58,284 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2018-12-24 13:46:58,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 13:46:58,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:46:58,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 13:46:58,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 13:46:58,286 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 13:46:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 13:46:58,437 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:46:58,437 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 13:46:58,438 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-24 13:46:58,439 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2018-12-24 13:46:58,440 INFO L207 CegarAbsIntRunner]: [0], [5], [7], [9] [2018-12-24 13:46:58,481 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-24 13:46:58,481 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-24 13:46:58,601 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-24 13:46:58,603 INFO L272 AbstractInterpreter]: Visited 4 different actions 6 times. Merged at 1 different actions 1 times. Never widened. Performed 51 root evaluator evaluations with a maximum evaluation depth of 5. Performed 51 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-24 13:46:58,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 13:46:58,612 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-24 13:46:58,612 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 13:46:58,612 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 [2018-12-24 13:46:58,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 13:46:58,628 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-24 13:46:58,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 13:46:58,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-24 13:46:58,729 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-12-24 13:46:58,730 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-24 13:46:58,764 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:46:58,764 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-12-24 13:46:58,818 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:46:58,819 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-24 13:46:58,907 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2018-12-24 13:46:58,908 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-24 13:46:58,931 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-24 13:46:58,932 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-12-24 13:46:58,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 13:46:58,978 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-24 13:46:58,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2018-12-24 13:46:58,978 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-24 13:46:58,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-24 13:46:58,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-24 13:46:58,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-24 13:46:58,980 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2018-12-24 13:46:59,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 13:46:59,009 INFO L93 Difference]: Finished difference Result 6 states and 7 transitions. [2018-12-24 13:46:59,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-24 13:46:59,011 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2018-12-24 13:46:59,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 13:46:59,012 INFO L225 Difference]: With dead ends: 6 [2018-12-24 13:46:59,012 INFO L226 Difference]: Without dead ends: 0 [2018-12-24 13:46:59,013 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-24 13:46:59,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-24 13:46:59,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-24 13:46:59,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-24 13:46:59,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-24 13:46:59,018 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2018-12-24 13:46:59,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 13:46:59,018 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-24 13:46:59,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-24 13:46:59,019 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-24 13:46:59,019 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-24 13:46:59,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-24 13:46:59,414 WARN L181 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2018-12-24 13:46:59,418 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 53) no Hoare annotation was computed. [2018-12-24 13:46:59,418 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 53) no Hoare annotation was computed. [2018-12-24 13:46:59,419 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 53) no Hoare annotation was computed. [2018-12-24 13:46:59,419 INFO L444 ceAbstractionStarter]: At program point L39(lines 39 51) the Hoare annotation is: false [2018-12-24 13:46:59,419 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 52) no Hoare annotation was computed. [2018-12-24 13:46:59,420 INFO L444 ceAbstractionStarter]: At program point L50(lines 26 50) the Hoare annotation is: (or (<= ULTIMATE.start_main_~menor~5 (select ULTIMATE.start_main_~array~5 0)) (and (= ULTIMATE.start_main_~j~5 0) (<= (div ULTIMATE.start_main_~SIZE~5 4294967296) 0) (<= (+ ULTIMATE.start_main_~j~5 1) ULTIMATE.start_main_~SIZE~5))) [2018-12-24 13:46:59,429 INFO L202 PluginConnector]: Adding new model array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 01:46:59 BoogieIcfgContainer [2018-12-24 13:46:59,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-24 13:46:59,430 INFO L168 Benchmark]: Toolchain (without parser) took 2295.28 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-12-24 13:46:59,432 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-12-24 13:46:59,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.13 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. [2018-12-24 13:46:59,433 INFO L168 Benchmark]: Boogie Preprocessor took 26.70 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. [2018-12-24 13:46:59,434 INFO L168 Benchmark]: RCFGBuilder took 358.44 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. [2018-12-24 13:46:59,435 INFO L168 Benchmark]: TraceAbstraction took 1863.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2018-12-24 13:46:59,439 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 0.21 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 42.13 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 26.70 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 358.44 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 1863.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 52]: 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: 39]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: main_~menor~5 <= main_~array~5[0] || ((main_~j~5 == 0 && main_~SIZE~5 / 4294967296 <= 0) && main_~j~5 + 1 <= main_~SIZE~5) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 21 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 143 SizeOfPredicates, 6 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...