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-limited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-1de736e-m [2019-02-18 10:05:31,774 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-02-18 10:05:31,776 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-02-18 10:05:31,793 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-02-18 10:05:31,793 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-02-18 10:05:31,794 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-02-18 10:05:31,799 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-02-18 10:05:31,801 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-02-18 10:05:31,803 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-02-18 10:05:31,804 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-02-18 10:05:31,805 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-02-18 10:05:31,805 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-02-18 10:05:31,806 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-02-18 10:05:31,807 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-02-18 10:05:31,808 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-02-18 10:05:31,809 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-02-18 10:05:31,810 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-02-18 10:05:31,815 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-02-18 10:05:31,817 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-02-18 10:05:31,819 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-02-18 10:05:31,820 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-02-18 10:05:31,826 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-02-18 10:05:31,831 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-02-18 10:05:31,831 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-02-18 10:05:31,832 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-02-18 10:05:31,833 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-02-18 10:05:31,837 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-02-18 10:05:31,838 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-02-18 10:05:31,842 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-02-18 10:05:31,845 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-02-18 10:05:31,845 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-02-18 10:05:31,846 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-02-18 10:05:31,846 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-02-18 10:05:31,846 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-02-18 10:05:31,847 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-02-18 10:05:31,850 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-02-18 10:05:31,850 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 [2019-02-18 10:05:31,864 INFO L110 SettingsManager]: Loading preferences was successful [2019-02-18 10:05:31,864 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-02-18 10:05:31,865 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-02-18 10:05:31,865 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-02-18 10:05:31,865 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-02-18 10:05:31,866 INFO L133 SettingsManager]: * User list type=DISABLED [2019-02-18 10:05:31,866 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-02-18 10:05:31,866 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-02-18 10:05:31,866 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-02-18 10:05:31,866 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2019-02-18 10:05:31,867 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2019-02-18 10:05:31,867 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-02-18 10:05:31,867 INFO L133 SettingsManager]: * Interval Domain=false [2019-02-18 10:05:31,868 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-02-18 10:05:31,868 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-02-18 10:05:31,868 INFO L133 SettingsManager]: * Use SBE=true [2019-02-18 10:05:31,868 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-02-18 10:05:31,869 INFO L133 SettingsManager]: * sizeof long=4 [2019-02-18 10:05:31,869 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-02-18 10:05:31,869 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-02-18 10:05:31,869 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-02-18 10:05:31,869 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-02-18 10:05:31,869 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-02-18 10:05:31,870 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-02-18 10:05:31,870 INFO L133 SettingsManager]: * sizeof long double=12 [2019-02-18 10:05:31,870 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-02-18 10:05:31,870 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-02-18 10:05:31,870 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-02-18 10:05:31,871 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-02-18 10:05:31,871 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-02-18 10:05:31,871 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 [2019-02-18 10:05:31,871 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-02-18 10:05:31,871 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-02-18 10:05:31,872 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-02-18 10:05:31,872 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-02-18 10:05:31,872 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-02-18 10:05:31,875 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in [2019-02-18 10:05:31,875 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-02-18 10:05:31,876 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-02-18 10:05:31,933 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-02-18 10:05:31,948 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-02-18 10:05:31,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-02-18 10:05:31,959 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-02-18 10:05:31,959 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-02-18 10:05:31,960 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-1-limited.bpl [2019-02-18 10:05:31,960 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-1-limited.bpl' [2019-02-18 10:05:32,001 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-02-18 10:05:32,003 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-02-18 10:05:32,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-02-18 10:05:32,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-02-18 10:05:32,004 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-02-18 10:05:32,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:05:31" (1/1) ... [2019-02-18 10:05:32,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:05:31" (1/1) ... [2019-02-18 10:05:32,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-02-18 10:05:32,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-02-18 10:05:32,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-02-18 10:05:32,057 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-02-18 10:05:32,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:05:31" (1/1) ... [2019-02-18 10:05:32,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:05:31" (1/1) ... [2019-02-18 10:05:32,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:05:31" (1/1) ... [2019-02-18 10:05:32,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:05:31" (1/1) ... [2019-02-18 10:05:32,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:05:31" (1/1) ... [2019-02-18 10:05:32,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:05:31" (1/1) ... [2019-02-18 10:05:32,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:05:31" (1/1) ... [2019-02-18 10:05:32,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-02-18 10:05:32,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-02-18 10:05:32,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-02-18 10:05:32,079 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-02-18 10:05:32,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:05:31" (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 [2019-02-18 10:05:32,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-02-18 10:05:32,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-02-18 10:05:32,359 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-02-18 10:05:32,360 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-02-18 10:05:32,363 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 10:05:32 BoogieIcfgContainer [2019-02-18 10:05:32,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-02-18 10:05:32,365 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-02-18 10:05:32,365 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-02-18 10:05:32,369 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-02-18 10:05:32,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 10:05:31" (1/2) ... [2019-02-18 10:05:32,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2f5c0d and model type speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 10:05:32, skipping insertion in model container [2019-02-18 10:05:32,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 10:05:32" (2/2) ... [2019-02-18 10:05:32,374 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-1-limited.bpl [2019-02-18 10:05:32,385 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-02-18 10:05:32,394 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-02-18 10:05:32,411 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-02-18 10:05:32,446 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-02-18 10:05:32,446 INFO L383 AbstractCegarLoop]: Hoare is true [2019-02-18 10:05:32,446 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-02-18 10:05:32,446 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-02-18 10:05:32,447 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-02-18 10:05:32,447 INFO L387 AbstractCegarLoop]: Difference is false [2019-02-18 10:05:32,447 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-02-18 10:05:32,447 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-02-18 10:05:32,461 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-02-18 10:05:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-02-18 10:05:32,468 INFO L394 BasicCegarLoop]: Found error trace [2019-02-18 10:05:32,469 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2019-02-18 10:05:32,471 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-02-18 10:05:32,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-18 10:05:32,478 INFO L82 PathProgramCache]: Analyzing trace with hash 967, now seen corresponding path program 1 times [2019-02-18 10:05:32,480 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-18 10:05:32,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-18 10:05:32,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-18 10:05:32,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-18 10:05:32,523 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-18 10:05:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-18 10:05:32,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-18 10:05:32,649 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-02-18 10:05:32,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-02-18 10:05:32,649 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-02-18 10:05:32,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-02-18 10:05:32,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-02-18 10:05:32,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-02-18 10:05:32,676 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2019-02-18 10:05:32,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-18 10:05:32,725 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-02-18 10:05:32,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-02-18 10:05:32,727 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-02-18 10:05:32,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-18 10:05:32,740 INFO L225 Difference]: With dead ends: 9 [2019-02-18 10:05:32,740 INFO L226 Difference]: Without dead ends: 4 [2019-02-18 10:05:32,744 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 [2019-02-18 10:05:32,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2019-02-18 10:05:32,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-02-18 10:05:32,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-02-18 10:05:32,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2019-02-18 10:05:32,780 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 4 transitions. Word has length 2 [2019-02-18 10:05:32,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-18 10:05:32,781 INFO L480 AbstractCegarLoop]: Abstraction has 4 states and 4 transitions. [2019-02-18 10:05:32,781 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-02-18 10:05:32,781 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2019-02-18 10:05:32,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-02-18 10:05:32,782 INFO L394 BasicCegarLoop]: Found error trace [2019-02-18 10:05:32,782 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-02-18 10:05:32,782 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-02-18 10:05:32,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-18 10:05:32,783 INFO L82 PathProgramCache]: Analyzing trace with hash 29921, now seen corresponding path program 1 times [2019-02-18 10:05:32,783 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-18 10:05:32,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-18 10:05:32,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-18 10:05:32,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-18 10:05:32,785 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-18 10:05:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-18 10:05:32,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-18 10:05:32,908 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-18 10:05:32,908 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-18 10:05:32,909 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 4 with the following transitions: [2019-02-18 10:05:32,911 INFO L207 CegarAbsIntRunner]: [0], [4], [6] [2019-02-18 10:05:32,975 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2019-02-18 10:05:32,976 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2019-02-18 10:05:37,292 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-02-18 10:05:37,295 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. [2019-02-18 10:05:37,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-18 10:05:37,305 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-02-18 10:05:37,581 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-02-18 10:05:37,704 INFO L420 sIntCurrentIteration]: We unified 2 AI predicates to 2 [2019-02-18 10:05:37,705 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-02-18 10:05:37,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-02-18 10:05:37,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [2] total 3 [2019-02-18 10:05:37,709 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-02-18 10:05:37,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-02-18 10:05:37,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-02-18 10:05:37,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-02-18 10:05:37,711 INFO L87 Difference]: Start difference. First operand 4 states and 4 transitions. Second operand 3 states. [2019-02-18 10:05:37,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-18 10:05:37,754 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2019-02-18 10:05:37,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-02-18 10:05:37,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-02-18 10:05:37,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-18 10:05:37,755 INFO L225 Difference]: With dead ends: 4 [2019-02-18 10:05:37,755 INFO L226 Difference]: Without dead ends: 0 [2019-02-18 10:05:37,757 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 [2019-02-18 10:05:37,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-02-18 10:05:37,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-02-18 10:05:37,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-02-18 10:05:37,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-02-18 10:05:37,758 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-02-18 10:05:37,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-18 10:05:37,758 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-02-18 10:05:37,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-02-18 10:05:37,759 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-02-18 10:05:37,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-18 10:05:37,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-02-18 10:05:37,836 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 7 9) no Hoare annotation was computed. [2019-02-18 10:05:37,837 INFO L448 ceAbstractionStarter]: For program point L14(lines 7 28) no Hoare annotation was computed. [2019-02-18 10:05:37,837 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 7 9) no Hoare annotation was computed. [2019-02-18 10:05:37,837 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 26) no Hoare annotation was computed. [2019-02-18 10:05:37,838 INFO L444 ceAbstractionStarter]: At program point L21-1(lines 21 24) the Hoare annotation is: (forall ((v_idx_26 Int) (v_idx_23 Int) (v_idx_20 Int)) (let ((.cse0 (+ ULTIMATE.start_malloc_ptr 1))) (and (or (<= .cse0 v_idx_26) (< v_idx_26 ULTIMATE.start_main_p1) (let ((.cse1 (select |#memory_int| v_idx_26))) (and (<= 0 .cse1) (<= 0 (* 2 .cse1))))) (<= ULTIMATE.start_malloc_ptr ULTIMATE.start_main_p1) (<= ULTIMATE.start_main_p1 ULTIMATE.start_malloc_ptr) (or (< v_idx_20 ULTIMATE.start_main_p1) (<= .cse0 v_idx_20) (= 0 (select |ULTIMATE.start_malloc_old_#valid| v_idx_20))) (or (= (select |#valid| v_idx_23) 1) (< v_idx_23 ULTIMATE.start_main_p1) (<= .cse0 v_idx_23))))) [2019-02-18 10:05:37,851 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-1-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 10:05:37 BoogieIcfgContainer [2019-02-18 10:05:37,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-02-18 10:05:37,854 INFO L168 Benchmark]: Toolchain (without parser) took 5851.64 ms. Allocated memory was 133.7 MB in the beginning and 467.7 MB in the end (delta: 334.0 MB). Free memory was 109.0 MB in the beginning and 406.9 MB in the end (delta: -297.9 MB). Peak memory consumption was 36.0 MB. Max. memory is 7.1 GB. [2019-02-18 10:05:37,857 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory is still 110.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-02-18 10:05:37,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.48 ms. Allocated memory is still 133.7 MB. Free memory was 109.0 MB in the beginning and 106.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-02-18 10:05:37,859 INFO L168 Benchmark]: Boogie Preprocessor took 21.21 ms. Allocated memory is still 133.7 MB. Free memory was 106.8 MB in the beginning and 105.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-02-18 10:05:37,860 INFO L168 Benchmark]: RCFGBuilder took 285.10 ms. Allocated memory is still 133.7 MB. Free memory was 105.6 MB in the beginning and 97.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-02-18 10:05:37,861 INFO L168 Benchmark]: TraceAbstraction took 5488.20 ms. Allocated memory was 133.7 MB in the beginning and 467.7 MB in the end (delta: 334.0 MB). Free memory was 96.8 MB in the beginning and 406.9 MB in the end (delta: -310.1 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2019-02-18 10:05:37,866 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 133.7 MB. Free memory is still 110.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.48 ms. Allocated memory is still 133.7 MB. Free memory was 109.0 MB in the beginning and 106.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.21 ms. Allocated memory is still 133.7 MB. Free memory was 106.8 MB in the beginning and 105.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 285.10 ms. Allocated memory is still 133.7 MB. Free memory was 105.6 MB in the beginning and 97.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5488.20 ms. Allocated memory was 133.7 MB in the beginning and 467.7 MB in the end (delta: 334.0 MB). Free memory was 96.8 MB in the beginning and 406.9 MB in the end (delta: -310.1 MB). Peak memory consumption was 23.9 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_26 : int, v_idx_23 : int, v_idx_20 : int :: (((((ptr + 1 <= v_idx_26 || v_idx_26 < p1) || (0 <= #memory_int[v_idx_26] && 0 <= 2 * #memory_int[v_idx_26])) && ptr <= p1) && p1 <= ptr) && ((v_idx_20 < p1 || ptr + 1 <= v_idx_20) || 0 == old(malloc_old_#valid)[v_idx_20])) && ((#valid[v_idx_23] == 1 || v_idx_23 < p1) || ptr + 1 <= v_idx_23)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. SAFE Result, 5.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s 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, 4.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 58 HoareAnnotationTreeSize, 1 FomulaSimplifications, 65 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...