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 0.1.24-0ed9222-m [2019-01-11 14:51:16,947 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-11 14:51:16,949 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-11 14:51:16,964 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-11 14:51:16,965 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-11 14:51:16,967 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-11 14:51:16,968 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-11 14:51:16,971 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-11 14:51:16,973 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-11 14:51:16,973 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-11 14:51:16,983 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-01-11 14:51:17,020 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 [2019-01-11 14:51:17,042 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-11 14:51:17,043 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-11 14:51:17,043 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-11 14:51:17,044 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-11 14:51:17,044 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-11 14:51:17,044 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-11 14:51:17,044 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-11 14:51:17,045 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-11 14:51:17,045 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-11 14:51:17,045 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-01-11 14:51:17,045 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-01-11 14:51:17,045 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-11 14:51:17,046 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-11 14:51:17,046 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-11 14:51:17,046 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-11 14:51:17,047 INFO L133 SettingsManager]: * Use SBE=true [2019-01-11 14:51:17,048 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-11 14:51:17,048 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-11 14:51:17,048 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-11 14:51:17,048 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-11 14:51:17,049 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-11 14:51:17,049 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-11 14:51:17,049 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-11 14:51:17,049 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-11 14:51:17,049 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-11 14:51:17,049 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-11 14:51:17,050 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-11 14:51:17,051 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-11 14:51:17,051 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-11 14:51:17,051 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-11 14:51:17,052 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8192 -smt2 -in -t:2000 [2019-01-11 14:51:17,052 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-11 14:51:17,052 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-11 14:51:17,052 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-11 14:51:17,052 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-11 14:51:17,053 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-11 14:51:17,053 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8192 -smt2 -in [2019-01-11 14:51:17,053 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-11 14:51:17,053 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-11 14:51:17,088 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-11 14:51:17,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-11 14:51:17,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-11 14:51:17,102 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-11 14:51:17,103 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-11 14:51:17,103 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-1-unlimited.bpl [2019-01-11 14:51:17,104 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-1-unlimited.bpl' [2019-01-11 14:51:17,134 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-11 14:51:17,136 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-11 14:51:17,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-11 14:51:17,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-11 14:51:17,137 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-11 14:51:17,152 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 11.01 02:51:17" (1/1) ... [2019-01-11 14:51:17,161 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 11.01 02:51:17" (1/1) ... [2019-01-11 14:51:17,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-11 14:51:17,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-11 14:51:17,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-11 14:51:17,185 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-11 14:51:17,196 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 11.01 02:51:17" (1/1) ... [2019-01-11 14:51:17,197 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 11.01 02:51:17" (1/1) ... [2019-01-11 14:51:17,197 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 11.01 02:51:17" (1/1) ... [2019-01-11 14:51:17,198 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 11.01 02:51:17" (1/1) ... [2019-01-11 14:51:17,200 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 11.01 02:51:17" (1/1) ... [2019-01-11 14:51:17,203 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 11.01 02:51:17" (1/1) ... [2019-01-11 14:51:17,204 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 11.01 02:51:17" (1/1) ... [2019-01-11 14:51:17,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-11 14:51:17,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-11 14:51:17,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-11 14:51:17,206 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-11 14:51:17,207 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 11.01 02:51:17" (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 [2019-01-11 14:51:17,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-11 14:51:17,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-11 14:51:17,401 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-11 14:51:17,401 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-11 14:51:17,403 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 02:51:17 BoogieIcfgContainer [2019-01-11 14:51:17,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-11 14:51:17,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-11 14:51:17,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-11 14:51:17,407 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-11 14:51:17,407 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 11.01 02:51:17" (1/2) ... [2019-01-11 14:51:17,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a211829 and model type speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 02:51:17, skipping insertion in model container [2019-01-11 14:51:17,409 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 11.01 02:51:17" (2/2) ... [2019-01-11 14:51:17,410 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-1-unlimited.bpl [2019-01-11 14:51:17,420 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-11 14:51:17,426 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-11 14:51:17,439 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-11 14:51:17,464 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-11 14:51:17,464 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-11 14:51:17,464 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-11 14:51:17,465 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-11 14:51:17,465 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-11 14:51:17,465 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-11 14:51:17,466 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-11 14:51:17,466 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-11 14:51:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-01-11 14:51:17,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-01-11 14:51:17,484 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 14:51:17,485 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2019-01-11 14:51:17,488 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-11 14:51:17,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 14:51:17,493 INFO L82 PathProgramCache]: Analyzing trace with hash 967, now seen corresponding path program 1 times [2019-01-11 14:51:17,495 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-11 14:51:17,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:51:17,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 14:51:17,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:51:17,531 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-11 14:51:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 14:51:17,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 14:51:17,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-11 14:51:17,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-11 14:51:17,646 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-11 14:51:17,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 14:51:17,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 14:51:17,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 14:51:17,667 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2019-01-11 14:51:17,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 14:51:17,725 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-01-11 14:51:17,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 14:51:17,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-01-11 14:51:17,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 14:51:17,739 INFO L225 Difference]: With dead ends: 9 [2019-01-11 14:51:17,739 INFO L226 Difference]: Without dead ends: 4 [2019-01-11 14:51:17,743 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 [2019-01-11 14:51:17,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2019-01-11 14:51:17,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-01-11 14:51:17,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-11 14:51:17,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2019-01-11 14:51:17,780 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 4 transitions. Word has length 2 [2019-01-11 14:51:17,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 14:51:17,780 INFO L480 AbstractCegarLoop]: Abstraction has 4 states and 4 transitions. [2019-01-11 14:51:17,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 14:51:17,781 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2019-01-11 14:51:17,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-11 14:51:17,781 INFO L394 BasicCegarLoop]: Found error trace [2019-01-11 14:51:17,781 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-11 14:51:17,782 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-11 14:51:17,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 14:51:17,782 INFO L82 PathProgramCache]: Analyzing trace with hash 29921, now seen corresponding path program 1 times [2019-01-11 14:51:17,783 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-11 14:51:17,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:51:17,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-11 14:51:17,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-11 14:51:17,784 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-11 14:51:17,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-11 14:51:17,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-11 14:51:17,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-11 14:51:17,874 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-11 14:51:17,875 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 4 with the following transitions: [2019-01-11 14:51:17,876 INFO L207 CegarAbsIntRunner]: [0], [4], [6] [2019-01-11 14:51:17,932 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2019-01-11 14:51:17,933 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-11 14:51:22,296 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-01-11 14:51:22,298 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. [2019-01-11 14:51:22,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-11 14:51:22,308 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-01-11 14:51:22,617 INFO L227 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 60% of their original sizes. [2019-01-11 14:51:22,617 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-01-11 14:51:22,735 INFO L420 sIntCurrentIteration]: We unified 2 AI predicates to 2 [2019-01-11 14:51:22,735 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-01-11 14:51:22,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-11 14:51:22,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [2] total 3 [2019-01-11 14:51:22,736 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-11 14:51:22,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-11 14:51:22,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-11 14:51:22,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-11 14:51:22,738 INFO L87 Difference]: Start difference. First operand 4 states and 4 transitions. Second operand 3 states. [2019-01-11 14:51:24,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-11 14:51:24,775 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2019-01-11 14:51:24,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-11 14:51:24,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-11 14:51:24,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-11 14:51:24,776 INFO L225 Difference]: With dead ends: 4 [2019-01-11 14:51:24,776 INFO L226 Difference]: Without dead ends: 0 [2019-01-11 14:51:24,777 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 [2019-01-11 14:51:24,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-11 14:51:24,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-11 14:51:24,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-11 14:51:24,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-11 14:51:24,777 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-01-11 14:51:24,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-11 14:51:24,778 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-11 14:51:24,778 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-11 14:51:24,778 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-11 14:51:24,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-11 14:51:24,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-11 14:51:24,803 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 7 9) no Hoare annotation was computed. [2019-01-11 14:51:24,803 INFO L448 ceAbstractionStarter]: For program point L14(lines 7 28) no Hoare annotation was computed. [2019-01-11 14:51:24,803 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 7 9) no Hoare annotation was computed. [2019-01-11 14:51:24,803 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 26) no Hoare annotation was computed. [2019-01-11 14:51:24,804 INFO L444 ceAbstractionStarter]: At program point L21-1(lines 21 24) the Hoare annotation is: (forall ((v_idx_45 Int) (v_idx_43 Int) (v_idx_44 Int)) (exists ((v_v_829_1 Int) (v_v_830_1 Int) (v_v_831_1 Int)) (let ((.cse0 (+ ULTIMATE.start_main_p1 1))) (and (<= 0 (* 2 v_v_830_1)) (or (< v_idx_45 .cse0) (= v_v_831_1 (select |#memory_int| v_idx_45))) (or (= v_v_829_1 (select |#memory_int| v_idx_43)) (<= ULTIMATE.start_main_p1 v_idx_43)) (or (= v_v_830_1 (select |#memory_int| v_idx_44)) (<= .cse0 v_idx_44) (< v_idx_44 ULTIMATE.start_main_p1)))))) [2019-01-11 14:51:24,813 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-1-unlimited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 02:51:24 BoogieIcfgContainer [2019-01-11 14:51:24,814 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-11 14:51:24,814 INFO L168 Benchmark]: Toolchain (without parser) took 7679.49 ms. Allocated memory was 140.0 MB in the beginning and 443.5 MB in the end (delta: 303.6 MB). Free memory was 108.2 MB in the beginning and 413.6 MB in the end (delta: -305.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-01-11 14:51:24,816 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 140.0 MB. Free memory is still 109.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-11 14:51:24,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.46 ms. Allocated memory is still 140.0 MB. Free memory was 108.2 MB in the beginning and 106.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-01-11 14:51:24,819 INFO L168 Benchmark]: Boogie Preprocessor took 19.99 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 104.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-01-11 14:51:24,820 INFO L168 Benchmark]: RCFGBuilder took 197.66 ms. Allocated memory is still 140.0 MB. Free memory was 104.7 MB in the beginning and 96.2 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. [2019-01-11 14:51:24,821 INFO L168 Benchmark]: TraceAbstraction took 7409.79 ms. Allocated memory was 140.0 MB in the beginning and 443.5 MB in the end (delta: 303.6 MB). Free memory was 95.8 MB in the beginning and 413.6 MB in the end (delta: -317.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-01-11 14:51:24,827 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 0.15 ms. Allocated memory is still 140.0 MB. Free memory is still 109.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.46 ms. Allocated memory is still 140.0 MB. Free memory was 108.2 MB in the beginning and 106.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 19.99 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 104.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 197.66 ms. Allocated memory is still 140.0 MB. Free memory was 104.7 MB in the beginning and 96.2 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7409.79 ms. Allocated memory was 140.0 MB in the beginning and 443.5 MB in the end (delta: 303.6 MB). Free memory was 95.8 MB in the beginning and 413.6 MB in the end (delta: -317.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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_45 : int, v_idx_43 : int, v_idx_44 : int :: (exists v_v_829_1 : int, v_v_830_1 : int, v_v_831_1 : int :: ((0 <= 2 * v_v_830_1 && (v_idx_45 < p1 + 1 || v_v_831_1 == #memory_int[v_idx_45])) && (v_v_829_1 == #memory_int[v_idx_43] || p1 <= v_idx_43)) && ((v_v_830_1 == #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, 7.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 2.1s 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, 4.4s 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, 42 HoareAnnotationTreeSize, 1 FomulaSimplifications, 49 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s 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...