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_array_oct.epf -i ../../../trunk/examples/programs/heapseparator/speedup-poc-dd-1-unlimited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fa1c628-m [2019-01-31 17:33:42,906 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-31 17:33:42,908 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-31 17:33:42,928 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-01-31 17:33:42,984 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf [2019-01-31 17:33:43,005 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-31 17:33:43,005 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-31 17:33:43,007 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-31 17:33:43,007 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-31 17:33:43,007 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-31 17:33:43,007 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-31 17:33:43,008 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-31 17:33:43,008 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-31 17:33:43,008 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-31 17:33:43,009 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-01-31 17:33:43,009 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-01-31 17:33:43,009 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-31 17:33:43,009 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-31 17:33:43,010 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-31 17:33:43,010 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-31 17:33:43,011 INFO L133 SettingsManager]: * Use SBE=true [2019-01-31 17:33:43,012 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-31 17:33:43,012 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-31 17:33:43,012 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-31 17:33:43,013 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-31 17:33:43,013 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-31 17:33:43,013 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-31 17:33:43,013 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-31 17:33:43,013 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-31 17:33:43,014 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-31 17:33:43,015 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-31 17:33:43,015 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-31 17:33:43,015 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-31 17:33:43,015 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-31 17:33:43,016 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-31 17:33:43,016 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 [2019-01-31 17:33:43,016 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-31 17:33:43,016 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-31 17:33:43,016 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-31 17:33:43,017 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-31 17:33:43,017 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-31 17:33:43,017 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in [2019-01-31 17:33:43,017 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-31 17:33:43,018 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-31 17:33:43,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-31 17:33:43,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-31 17:33:43,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-31 17:33:43,073 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-31 17:33:43,073 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-31 17:33:43,075 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-1-unlimited.bpl [2019-01-31 17:33:43,076 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-1-unlimited.bpl' [2019-01-31 17:33:43,118 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-31 17:33:43,119 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-31 17:33:43,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-31 17:33:43,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-31 17:33:43,120 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-31 17:33:43,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 05:33:43" (1/1) ... [2019-01-31 17:33:43,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 05:33:43" (1/1) ... [2019-01-31 17:33:43,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-31 17:33:43,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-31 17:33:43,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-31 17:33:43,175 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-31 17:33:43,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 05:33:43" (1/1) ... [2019-01-31 17:33:43,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 05:33:43" (1/1) ... [2019-01-31 17:33:43,187 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 05:33:43" (1/1) ... [2019-01-31 17:33:43,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 05:33:43" (1/1) ... [2019-01-31 17:33:43,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 05:33:43" (1/1) ... [2019-01-31 17:33:43,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 05:33:43" (1/1) ... [2019-01-31 17:33:43,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 05:33:43" (1/1) ... [2019-01-31 17:33:43,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-31 17:33:43,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-31 17:33:43,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-31 17:33:43,197 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-31 17:33:43,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 05:33:43" (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:8092 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 [2019-01-31 17:33:43,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-31 17:33:43,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-31 17:33:43,403 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-31 17:33:43,403 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-31 17:33:43,404 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:33:43 BoogieIcfgContainer [2019-01-31 17:33:43,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-31 17:33:43,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-31 17:33:43,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-31 17:33:43,411 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-31 17:33:43,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 05:33:43" (1/2) ... [2019-01-31 17:33:43,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1adde6d2 and model type speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 05:33:43, skipping insertion in model container [2019-01-31 17:33:43,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 05:33:43" (2/2) ... [2019-01-31 17:33:43,415 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-1-unlimited.bpl [2019-01-31 17:33:43,425 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-31 17:33:43,433 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-31 17:33:43,448 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-31 17:33:43,482 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-31 17:33:43,482 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-31 17:33:43,482 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-31 17:33:43,482 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-31 17:33:43,482 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-31 17:33:43,483 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-31 17:33:43,483 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-31 17:33:43,483 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-31 17:33:43,494 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-01-31 17:33:43,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-01-31 17:33:43,500 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 17:33:43,501 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2019-01-31 17:33:43,503 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 17:33:43,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 17:33:43,508 INFO L82 PathProgramCache]: Analyzing trace with hash 967, now seen corresponding path program 1 times [2019-01-31 17:33:43,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 17:33:43,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 17:33:43,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 17:33:43,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 17:33:43,546 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 17:33:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 17:33:43,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 17:33:43,670 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-31 17:33:43,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-31 17:33:43,671 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-31 17:33:43,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-31 17:33:43,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-31 17:33:43,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-31 17:33:43,688 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2019-01-31 17:33:43,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 17:33:43,725 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-01-31 17:33:43,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-31 17:33:43,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-01-31 17:33:43,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 17:33:43,739 INFO L225 Difference]: With dead ends: 9 [2019-01-31 17:33:43,740 INFO L226 Difference]: Without dead ends: 4 [2019-01-31 17:33:43,743 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-31 17:33:43,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2019-01-31 17:33:43,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-01-31 17:33:43,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-31 17:33:43,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2019-01-31 17:33:43,779 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 4 transitions. Word has length 2 [2019-01-31 17:33:43,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 17:33:43,780 INFO L480 AbstractCegarLoop]: Abstraction has 4 states and 4 transitions. [2019-01-31 17:33:43,780 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-31 17:33:43,780 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2019-01-31 17:33:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-31 17:33:43,781 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 17:33:43,781 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-31 17:33:43,781 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 17:33:43,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 17:33:43,784 INFO L82 PathProgramCache]: Analyzing trace with hash 29921, now seen corresponding path program 1 times [2019-01-31 17:33:43,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 17:33:43,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 17:33:43,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 17:33:43,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 17:33:43,792 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 17:33:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 17:33:43,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 17:33:43,945 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 17:33:43,945 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 17:33:43,946 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 4 with the following transitions: [2019-01-31 17:33:43,948 INFO L207 CegarAbsIntRunner]: [0], [4], [6] [2019-01-31 17:33:44,003 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2019-01-31 17:33:44,003 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-31 17:33:47,798 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-01-31 17:33:47,800 INFO L272 AbstractInterpreter]: Visited 3 different actions 13 times. Merged at 1 different actions 5 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-01-31 17:33:47,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 17:33:47,811 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-01-31 17:33:48,148 INFO L227 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 60% of their original sizes. [2019-01-31 17:33:48,149 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-01-31 17:33:48,256 INFO L420 sIntCurrentIteration]: We unified 2 AI predicates to 2 [2019-01-31 17:33:48,257 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-01-31 17:33:48,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-31 17:33:48,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [2] total 3 [2019-01-31 17:33:48,258 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-31 17:33:48,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-31 17:33:48,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-31 17:33:48,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-31 17:33:48,260 INFO L87 Difference]: Start difference. First operand 4 states and 4 transitions. Second operand 3 states. [2019-01-31 17:33:48,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 17:33:48,287 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2019-01-31 17:33:48,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-31 17:33:48,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-31 17:33:48,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 17:33:48,288 INFO L225 Difference]: With dead ends: 4 [2019-01-31 17:33:48,288 INFO L226 Difference]: Without dead ends: 0 [2019-01-31 17:33:48,290 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-31 17:33:48,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-31 17:33:48,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-31 17:33:48,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-31 17:33:48,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-31 17:33:48,292 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-01-31 17:33:48,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 17:33:48,292 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-31 17:33:48,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-31 17:33:48,292 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-31 17:33:48,293 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 17:33:48,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-31 17:33:48,338 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 7 9) no Hoare annotation was computed. [2019-01-31 17:33:48,338 INFO L448 ceAbstractionStarter]: For program point L14(lines 7 28) no Hoare annotation was computed. [2019-01-31 17:33:48,338 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 7 9) no Hoare annotation was computed. [2019-01-31 17:33:48,339 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 26) no Hoare annotation was computed. [2019-01-31 17:33:48,339 INFO L444 ceAbstractionStarter]: At program point L21-1(lines 21 24) the Hoare annotation is: (forall ((v_idx_44 Int)) (or (<= 0 (* 2 (select |#memory_int| v_idx_44))) (<= (+ ULTIMATE.start_main_p1 1) v_idx_44) (< v_idx_44 ULTIMATE.start_main_p1))) [2019-01-31 17:33:48,347 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 05:33:48 BoogieIcfgContainer [2019-01-31 17:33:48,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-31 17:33:48,348 INFO L168 Benchmark]: Toolchain (without parser) took 5229.94 ms. Allocated memory was 140.5 MB in the beginning and 410.0 MB in the end (delta: 269.5 MB). Free memory was 108.0 MB in the beginning and 352.5 MB in the end (delta: -244.5 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2019-01-31 17:33:48,351 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory is still 109.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-31 17:33:48,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.70 ms. Allocated memory is still 140.5 MB. Free memory was 107.8 MB in the beginning and 105.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-01-31 17:33:48,353 INFO L168 Benchmark]: Boogie Preprocessor took 21.20 ms. Allocated memory is still 140.5 MB. Free memory was 105.8 MB in the beginning and 104.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-01-31 17:33:48,354 INFO L168 Benchmark]: RCFGBuilder took 208.07 ms. Allocated memory is still 140.5 MB. Free memory was 104.5 MB in the beginning and 95.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-01-31 17:33:48,355 INFO L168 Benchmark]: TraceAbstraction took 4941.26 ms. Allocated memory was 140.5 MB in the beginning and 410.0 MB in the end (delta: 269.5 MB). Free memory was 95.7 MB in the beginning and 352.5 MB in the end (delta: -256.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. [2019-01-31 17:33:48,363 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 0.26 ms. Allocated memory is still 140.5 MB. Free memory is still 109.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.70 ms. Allocated memory is still 140.5 MB. Free memory was 107.8 MB in the beginning and 105.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.20 ms. Allocated memory is still 140.5 MB. Free memory was 105.8 MB in the beginning and 104.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 208.07 ms. Allocated memory is still 140.5 MB. Free memory was 104.5 MB in the beginning and 95.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4941.26 ms. Allocated memory was 140.5 MB in the beginning and 410.0 MB in the end (delta: 269.5 MB). Free memory was 95.7 MB in the beginning and 352.5 MB in the end (delta: -256.8 MB). Peak memory consumption was 12.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: 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: 21]: Loop Invariant Derived loop invariant: (forall v_idx_44 : int :: (0 <= 2 * #memory_int[v_idx_44] || p1 + 1 <= v_idx_44) || v_idx_44 < p1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. SAFE Result, 4.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 2 SDslu, 1 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.0 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 17 HoareAnnotationTreeSize, 1 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...