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-2-limited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b7bd044-m [2019-01-20 10:37:36,170 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-20 10:37:36,174 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-20 10:37:36,189 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-01-20 10:37:36,221 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 [2019-01-20 10:37:36,244 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-20 10:37:36,245 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-20 10:37:36,245 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-20 10:37:36,246 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-20 10:37:36,246 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-20 10:37:36,246 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-20 10:37:36,246 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-20 10:37:36,246 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-20 10:37:36,247 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-20 10:37:36,249 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-01-20 10:37:36,249 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-01-20 10:37:36,249 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-20 10:37:36,249 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-20 10:37:36,250 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-20 10:37:36,250 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-20 10:37:36,250 INFO L133 SettingsManager]: * Use SBE=true [2019-01-20 10:37:36,251 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-20 10:37:36,251 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-20 10:37:36,251 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-20 10:37:36,251 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-20 10:37:36,251 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-20 10:37:36,252 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-20 10:37:36,252 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-20 10:37:36,252 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-20 10:37:36,252 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-20 10:37:36,252 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-20 10:37:36,253 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-20 10:37:36,255 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-20 10:37:36,255 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-20 10:37:36,255 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-20 10:37:36,255 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-20 10:37:36,256 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-20 10:37:36,256 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-20 10:37:36,256 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-20 10:37:36,256 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-20 10:37:36,256 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-20 10:37:36,257 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-20 10:37:36,257 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-20 10:37:36,257 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-20 10:37:36,298 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-20 10:37:36,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-20 10:37:36,315 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-20 10:37:36,316 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-20 10:37:36,317 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-20 10:37:36,317 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-2-limited.bpl [2019-01-20 10:37:36,318 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-2-limited.bpl' [2019-01-20 10:37:36,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-20 10:37:36,356 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-20 10:37:36,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-20 10:37:36,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-20 10:37:36,357 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-20 10:37:36,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 10:37:36" (1/1) ... [2019-01-20 10:37:36,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 10:37:36" (1/1) ... [2019-01-20 10:37:36,407 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-20 10:37:36,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-20 10:37:36,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-20 10:37:36,408 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-20 10:37:36,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 10:37:36" (1/1) ... [2019-01-20 10:37:36,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 10:37:36" (1/1) ... [2019-01-20 10:37:36,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 10:37:36" (1/1) ... [2019-01-20 10:37:36,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 10:37:36" (1/1) ... [2019-01-20 10:37:36,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 10:37:36" (1/1) ... [2019-01-20 10:37:36,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 10:37:36" (1/1) ... [2019-01-20 10:37:36,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 10:37:36" (1/1) ... [2019-01-20 10:37:36,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-20 10:37:36,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-20 10:37:36,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-20 10:37:36,430 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-20 10:37:36,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 10:37:36" (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 [2019-01-20 10:37:36,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-20 10:37:36,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-20 10:37:36,729 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-20 10:37:36,729 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-20 10:37:36,731 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 10:37:36 BoogieIcfgContainer [2019-01-20 10:37:36,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-20 10:37:36,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-20 10:37:36,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-20 10:37:36,735 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-20 10:37:36,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.01 10:37:36" (1/2) ... [2019-01-20 10:37:36,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c9797f and model type speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 10:37:36, skipping insertion in model container [2019-01-20 10:37:36,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 10:37:36" (2/2) ... [2019-01-20 10:37:36,740 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-2-limited.bpl [2019-01-20 10:37:36,751 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-20 10:37:36,765 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-01-20 10:37:36,783 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-01-20 10:37:36,822 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-20 10:37:36,822 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-20 10:37:36,822 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-20 10:37:36,822 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-20 10:37:36,823 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-20 10:37:36,823 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-20 10:37:36,823 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-20 10:37:36,823 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-20 10:37:36,840 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-01-20 10:37:36,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-01-20 10:37:36,856 INFO L394 BasicCegarLoop]: Found error trace [2019-01-20 10:37:36,857 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2019-01-20 10:37:36,861 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2019-01-20 10:37:36,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 10:37:36,868 INFO L82 PathProgramCache]: Analyzing trace with hash 972, now seen corresponding path program 1 times [2019-01-20 10:37:36,870 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-20 10:37:36,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 10:37:36,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-20 10:37:36,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 10:37:36,909 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-20 10:37:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-20 10:37:37,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 10:37:37,029 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-20 10:37:37,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-20 10:37:37,030 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-20 10:37:37,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-20 10:37:37,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-20 10:37:37,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-20 10:37:37,047 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-01-20 10:37:37,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-20 10:37:37,209 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2019-01-20 10:37:37,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-20 10:37:37,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-01-20 10:37:37,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-20 10:37:37,230 INFO L225 Difference]: With dead ends: 13 [2019-01-20 10:37:37,230 INFO L226 Difference]: Without dead ends: 8 [2019-01-20 10:37:37,234 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 [2019-01-20 10:37:37,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-20 10:37:37,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 6. [2019-01-20 10:37:37,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-01-20 10:37:37,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-01-20 10:37:37,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 9 transitions. Word has length 2 [2019-01-20 10:37:37,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-20 10:37:37,274 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-01-20 10:37:37,274 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-20 10:37:37,274 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 9 transitions. [2019-01-20 10:37:37,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-20 10:37:37,275 INFO L394 BasicCegarLoop]: Found error trace [2019-01-20 10:37:37,275 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-20 10:37:37,275 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2019-01-20 10:37:37,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 10:37:37,276 INFO L82 PathProgramCache]: Analyzing trace with hash 29988, now seen corresponding path program 1 times [2019-01-20 10:37:37,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-20 10:37:37,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 10:37:37,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-20 10:37:37,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 10:37:37,278 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-20 10:37:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-20 10:37:37,372 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 10:37:37,372 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-20 10:37:37,373 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-20 10:37:37,374 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 4 with the following transitions: [2019-01-20 10:37:37,376 INFO L207 CegarAbsIntRunner]: [0], [6], [11] [2019-01-20 10:37:37,428 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2019-01-20 10:37:37,429 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-20 10:37:43,537 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-01-20 10:37:43,539 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. [2019-01-20 10:37:43,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 10:37:43,546 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-01-20 10:37:44,151 INFO L227 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 66.67% of their original sizes. [2019-01-20 10:37:44,152 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-01-20 10:37:44,275 INFO L420 sIntCurrentIteration]: We unified 2 AI predicates to 2 [2019-01-20 10:37:44,276 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-01-20 10:37:44,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-20 10:37:44,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [2] total 3 [2019-01-20 10:37:44,277 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-20 10:37:44,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-20 10:37:44,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-20 10:37:44,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-20 10:37:44,280 INFO L87 Difference]: Start difference. First operand 6 states and 9 transitions. Second operand 3 states. [2019-01-20 10:37:44,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-20 10:37:44,494 INFO L93 Difference]: Finished difference Result 8 states and 13 transitions. [2019-01-20 10:37:44,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-20 10:37:44,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-01-20 10:37:44,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-20 10:37:44,496 INFO L225 Difference]: With dead ends: 8 [2019-01-20 10:37:44,496 INFO L226 Difference]: Without dead ends: 7 [2019-01-20 10:37:44,497 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-20 10:37:44,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-01-20 10:37:44,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-01-20 10:37:44,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-01-20 10:37:44,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2019-01-20 10:37:44,500 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 9 transitions. Word has length 3 [2019-01-20 10:37:44,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-20 10:37:44,500 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 9 transitions. [2019-01-20 10:37:44,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-20 10:37:44,501 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 9 transitions. [2019-01-20 10:37:44,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-01-20 10:37:44,501 INFO L394 BasicCegarLoop]: Found error trace [2019-01-20 10:37:44,502 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-01-20 10:37:44,502 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2019-01-20 10:37:44,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 10:37:44,503 INFO L82 PathProgramCache]: Analyzing trace with hash 30050, now seen corresponding path program 1 times [2019-01-20 10:37:44,503 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-20 10:37:44,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 10:37:44,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-20 10:37:44,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 10:37:44,505 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-20 10:37:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-20 10:37:44,895 WARN L181 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 13 [2019-01-20 10:37:44,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 10:37:44,958 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-20 10:37:44,958 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-20 10:37:44,958 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 4 with the following transitions: [2019-01-20 10:37:44,959 INFO L207 CegarAbsIntRunner]: [0], [8], [11] [2019-01-20 10:37:44,960 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2019-01-20 10:37:44,960 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-20 10:37:47,712 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-01-20 10:37:47,713 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. [2019-01-20 10:37:47,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 10:37:47,713 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-01-20 10:37:47,888 INFO L227 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 58.33% of their original sizes. [2019-01-20 10:37:47,889 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-01-20 10:37:47,984 INFO L420 sIntCurrentIteration]: We unified 2 AI predicates to 2 [2019-01-20 10:37:47,984 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-01-20 10:37:47,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-20 10:37:47,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 4 [2019-01-20 10:37:47,985 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-20 10:37:47,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-20 10:37:47,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-20 10:37:47,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-20 10:37:47,986 INFO L87 Difference]: Start difference. First operand 6 states and 9 transitions. Second operand 4 states. [2019-01-20 10:37:48,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-20 10:37:48,289 INFO L93 Difference]: Finished difference Result 11 states and 17 transitions. [2019-01-20 10:37:48,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-20 10:37:48,289 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-01-20 10:37:48,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-20 10:37:48,290 INFO L225 Difference]: With dead ends: 11 [2019-01-20 10:37:48,290 INFO L226 Difference]: Without dead ends: 8 [2019-01-20 10:37:48,291 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-20 10:37:48,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-01-20 10:37:48,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-20 10:37:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-20 10:37:48,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 13 transitions. [2019-01-20 10:37:48,295 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 13 transitions. Word has length 3 [2019-01-20 10:37:48,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-20 10:37:48,295 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 13 transitions. [2019-01-20 10:37:48,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-20 10:37:48,295 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 13 transitions. [2019-01-20 10:37:48,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-20 10:37:48,295 INFO L394 BasicCegarLoop]: Found error trace [2019-01-20 10:37:48,296 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-20 10:37:48,296 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2019-01-20 10:37:48,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 10:37:48,296 INFO L82 PathProgramCache]: Analyzing trace with hash 929546, now seen corresponding path program 1 times [2019-01-20 10:37:48,296 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-20 10:37:48,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 10:37:48,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-20 10:37:48,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-20 10:37:48,298 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-20 10:37:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-20 10:37:48,601 WARN L181 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 13 [2019-01-20 10:37:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-20 10:37:48,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-20 10:37:48,649 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-20 10:37:48,649 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2019-01-20 10:37:48,649 INFO L207 CegarAbsIntRunner]: [0], [6], [8], [11] [2019-01-20 10:37:48,650 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2019-01-20 10:37:48,651 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-20 10:37:56,236 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-01-20 10:37:56,237 INFO L272 AbstractInterpreter]: Visited 4 different actions 31 times. Merged at 2 different actions 9 times. Widened at 2 different actions 5 times. Found 11 fixpoints after 2 different actions. Largest state had 0 variables. [2019-01-20 10:37:56,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-20 10:37:56,237 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-01-20 10:37:56,665 INFO L227 lantSequenceWeakener]: Weakened 3 states. On average, predicates are now at 55.56% of their original sizes. [2019-01-20 10:37:56,665 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-01-20 10:37:56,801 INFO L420 sIntCurrentIteration]: We unified 3 AI predicates to 3 [2019-01-20 10:37:56,801 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-01-20 10:37:56,801 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-20 10:37:56,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2019-01-20 10:37:56,802 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-20 10:37:56,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-20 10:37:56,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-20 10:37:56,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-20 10:37:56,803 INFO L87 Difference]: Start difference. First operand 8 states and 13 transitions. Second operand 4 states. [2019-01-20 10:37:56,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-20 10:37:56,949 INFO L93 Difference]: Finished difference Result 8 states and 13 transitions. [2019-01-20 10:37:56,949 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-20 10:37:56,949 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-01-20 10:37:56,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-20 10:37:56,950 INFO L225 Difference]: With dead ends: 8 [2019-01-20 10:37:56,950 INFO L226 Difference]: Without dead ends: 0 [2019-01-20 10:37:56,950 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-20 10:37:56,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-20 10:37:56,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-20 10:37:56,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-20 10:37:56,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-20 10:37:56,951 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-01-20 10:37:56,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-20 10:37:56,952 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-20 10:37:56,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-20 10:37:56,952 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-20 10:37:56,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-20 10:37:56,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-20 10:37:56,986 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 7 9) no Hoare annotation was computed. [2019-01-20 10:37:56,986 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 7 9) no Hoare annotation was computed. [2019-01-20 10:37:56,986 INFO L444 ceAbstractionStarter]: At program point L26-1(lines 25 31) the Hoare annotation is: (forall ((v_idx_213 Int) (v_idx_211 Int)) (let ((.cse6 (+ ULTIMATE.start_main_p1 1))) (and (let ((.cse4 (select |#memory_int| v_idx_213))) (let ((.cse1 (<= (+ ULTIMATE.start_main_p2 1) v_idx_213)) (.cse2 (< v_idx_213 ULTIMATE.start_main_p2)) (.cse3 (<= (* 2 .cse4) 0))) (let ((.cse0 (or .cse1 .cse2 .cse3))) (or (and (< v_idx_211 ULTIMATE.start_main_p1) .cse0) (let ((.cse5 (select |#memory_int| v_idx_211))) (and (or .cse1 .cse2 (and .cse3 (<= .cse4 .cse5))) (<= 0 (* 2 .cse5)))) (and (<= .cse6 v_idx_211) .cse0))))) (<= .cse6 ULTIMATE.start_main_p2)))) [2019-01-20 10:37:56,987 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONASSERT(line 34) no Hoare annotation was computed. [2019-01-20 10:37:56,987 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 33) no Hoare annotation was computed. [2019-01-20 10:37:56,987 INFO L448 ceAbstractionStarter]: For program point L14(lines 7 36) no Hoare annotation was computed. [2019-01-20 10:37:56,987 INFO L448 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2019-01-20 10:37:56,993 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-2-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 10:37:56 BoogieIcfgContainer [2019-01-20 10:37:56,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-20 10:37:56,994 INFO L168 Benchmark]: Toolchain (without parser) took 20638.87 ms. Allocated memory was 141.0 MB in the beginning and 1.0 GB in the end (delta: 887.6 MB). Free memory was 108.5 MB in the beginning and 339.1 MB in the end (delta: -230.6 MB). Peak memory consumption was 657.0 MB. Max. memory is 7.1 GB. [2019-01-20 10:37:56,995 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 141.0 MB. Free memory is still 109.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-20 10:37:56,996 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.29 ms. Allocated memory is still 141.0 MB. Free memory was 108.1 MB in the beginning and 106.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-01-20 10:37:56,997 INFO L168 Benchmark]: Boogie Preprocessor took 21.81 ms. Allocated memory is still 141.0 MB. Free memory was 106.3 MB in the beginning and 105.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-01-20 10:37:56,998 INFO L168 Benchmark]: RCFGBuilder took 301.02 ms. Allocated memory is still 141.0 MB. Free memory was 105.0 MB in the beginning and 95.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-01-20 10:37:56,999 INFO L168 Benchmark]: TraceAbstraction took 20262.12 ms. Allocated memory was 141.0 MB in the beginning and 1.0 GB in the end (delta: 887.6 MB). Free memory was 95.2 MB in the beginning and 339.1 MB in the end (delta: -243.9 MB). Peak memory consumption was 643.7 MB. Max. memory is 7.1 GB. [2019-01-20 10:37:57,004 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 141.0 MB. Free memory is still 109.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.29 ms. Allocated memory is still 141.0 MB. Free memory was 108.1 MB in the beginning and 106.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.81 ms. Allocated memory is still 141.0 MB. Free memory was 106.3 MB in the beginning and 105.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 301.02 ms. Allocated memory is still 141.0 MB. Free memory was 105.0 MB in the beginning and 95.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20262.12 ms. Allocated memory was 141.0 MB in the beginning and 1.0 GB in the end (delta: 887.6 MB). Free memory was 95.2 MB in the beginning and 339.1 MB in the end (delta: -243.9 MB). Peak memory consumption was 643.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 33]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 34]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (forall v_idx_213 : int, v_idx_211 : int :: (((v_idx_211 < p1 && ((p2 + 1 <= v_idx_213 || v_idx_213 < p2) || 2 * #memory_int[v_idx_213] <= 0)) || (((p2 + 1 <= v_idx_213 || v_idx_213 < p2) || (2 * #memory_int[v_idx_213] <= 0 && #memory_int[v_idx_213] <= #memory_int[v_idx_211])) && 0 <= 2 * #memory_int[v_idx_211])) || (p1 + 1 <= v_idx_211 && ((p2 + 1 <= v_idx_213 || v_idx_213 < p2) || 2 * #memory_int[v_idx_213] <= 0))) && p1 + 1 <= p2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 2 error locations. SAFE Result, 20.1s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 8 SDslu, 1 SDs, 0 SdLazy, 17 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 16.5s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.0 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 82 HoareAnnotationTreeSize, 1 FomulaSimplifications, 442 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 165 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/5 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...