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_compound_oct_cong.epf -i ../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 17:27:18,173 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 17:27:18,175 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 17:27:18,193 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-03 17:27:18,243 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_oct_cong.epf [2018-12-03 17:27:18,267 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 17:27:18,268 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 17:27:18,268 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 17:27:18,269 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 17:27:18,269 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 17:27:18,269 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 17:27:18,269 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 17:27:18,269 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 17:27:18,270 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 17:27:18,270 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 17:27:18,270 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 17:27:18,270 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 17:27:18,270 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 17:27:18,271 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 17:27:18,271 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 17:27:18,271 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 17:27:18,271 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 17:27:18,272 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 17:27:18,272 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 17:27:18,272 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 17:27:18,272 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 17:27:18,272 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 17:27:18,272 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 17:27:18,273 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 17:27:18,273 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 17:27:18,273 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 17:27:18,273 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 17:27:18,273 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 17:27:18,274 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 17:27:18,274 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 17:27:18,274 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 17:27:18,274 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 17:27:18,274 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 17:27:18,275 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 17:27:18,275 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 17:27:18,275 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 17:27:18,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 17:27:18,275 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 17:27:18,276 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 17:27:18,305 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 17:27:18,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 17:27:18,323 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 17:27:18,327 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 17:27:18,327 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 17:27:18,328 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl [2018-12-03 17:27:18,328 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl' [2018-12-03 17:27:18,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 17:27:18,364 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 17:27:18,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 17:27:18,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 17:27:18,365 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 17:27:18,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:27:18" (1/1) ... [2018-12-03 17:27:18,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:27:18" (1/1) ... [2018-12-03 17:27:18,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 17:27:18,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 17:27:18,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 17:27:18,402 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 17:27:18,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:27:18" (1/1) ... [2018-12-03 17:27:18,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:27:18" (1/1) ... [2018-12-03 17:27:18,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:27:18" (1/1) ... [2018-12-03 17:27:18,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:27:18" (1/1) ... [2018-12-03 17:27:18,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:27:18" (1/1) ... [2018-12-03 17:27:18,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:27:18" (1/1) ... [2018-12-03 17:27:18,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:27:18" (1/1) ... [2018-12-03 17:27:18,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 17:27:18,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 17:27:18,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 17:27:18,423 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 17:27:18,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:27:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 17:27:18,496 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-12-03 17:27:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 17:27:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 17:27:18,778 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 17:27:18,779 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 17:27:18,779 INFO L202 PluginConnector]: Adding new model jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:27:18 BoogieIcfgContainer [2018-12-03 17:27:18,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 17:27:18,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 17:27:18,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 17:27:18,786 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 17:27:18,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 05:27:18" (1/2) ... [2018-12-03 17:27:18,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cc20280 and model type jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 05:27:18, skipping insertion in model container [2018-12-03 17:27:18,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:27:18" (2/2) ... [2018-12-03 17:27:18,792 INFO L112 eAbstractionObserver]: Analyzing ICFG jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl [2018-12-03 17:27:18,803 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 17:27:18,812 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 17:27:18,831 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 17:27:18,874 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 17:27:18,875 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 17:27:18,875 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 17:27:18,875 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 17:27:18,875 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 17:27:18,875 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 17:27:18,876 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 17:27:18,876 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 17:27:18,894 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2018-12-03 17:27:18,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-03 17:27:18,902 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 17:27:18,903 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-03 17:27:18,914 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 17:27:18,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:27:18,926 INFO L82 PathProgramCache]: Analyzing trace with hash 889539593, now seen corresponding path program 1 times [2018-12-03 17:27:18,929 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 17:27:18,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:27:18,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 17:27:18,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:27:18,982 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 17:27:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 17:27:19,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 17:27:19,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 17:27:19,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 17:27:19,130 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 17:27:19,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 17:27:19,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 17:27:19,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 17:27:19,173 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2018-12-03 17:27:19,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 17:27:19,296 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2018-12-03 17:27:19,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 17:27:19,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-12-03 17:27:19,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 17:27:19,309 INFO L225 Difference]: With dead ends: 22 [2018-12-03 17:27:19,309 INFO L226 Difference]: Without dead ends: 14 [2018-12-03 17:27:19,314 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 17:27:19,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-03 17:27:19,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 9. [2018-12-03 17:27:19,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-12-03 17:27:19,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-12-03 17:27:19,347 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2018-12-03 17:27:19,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 17:27:19,347 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-12-03 17:27:19,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 17:27:19,347 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2018-12-03 17:27:19,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-03 17:27:19,348 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 17:27:19,348 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-03 17:27:19,349 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 17:27:19,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:27:19,349 INFO L82 PathProgramCache]: Analyzing trace with hash 889599175, now seen corresponding path program 1 times [2018-12-03 17:27:19,349 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 17:27:19,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:27:19,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 17:27:19,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:27:19,351 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 17:27:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 17:27:19,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 17:27:19,518 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 17:27:19,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-03 17:27:19,518 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 17:27:19,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 17:27:19,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 17:27:19,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 17:27:19,523 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2018-12-03 17:27:19,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 17:27:19,674 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-12-03 17:27:19,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 17:27:19,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-12-03 17:27:19,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 17:27:19,677 INFO L225 Difference]: With dead ends: 17 [2018-12-03 17:27:19,677 INFO L226 Difference]: Without dead ends: 15 [2018-12-03 17:27:19,678 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-03 17:27:19,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-03 17:27:19,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 11. [2018-12-03 17:27:19,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-03 17:27:19,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2018-12-03 17:27:19,684 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 6 [2018-12-03 17:27:19,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 17:27:19,684 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2018-12-03 17:27:19,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 17:27:19,685 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-12-03 17:27:19,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-03 17:27:19,686 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 17:27:19,686 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-12-03 17:27:19,686 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 17:27:19,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:27:19,686 INFO L82 PathProgramCache]: Analyzing trace with hash 628634047, now seen corresponding path program 1 times [2018-12-03 17:27:19,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 17:27:19,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:27:19,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 17:27:19,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 17:27:19,688 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 17:27:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 17:27:19,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 17:27:19,799 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 17:27:19,799 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 17:27:19,800 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 11 with the following transitions: [2018-12-03 17:27:19,802 INFO L205 CegarAbsIntRunner]: [0], [2], [6], [8], [10], [14], [16], [18] [2018-12-03 17:27:19,858 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-03 17:27:19,859 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 17:27:20,310 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-03 17:27:20,312 INFO L272 AbstractInterpreter]: Visited 7 different actions 62 times. Merged at 4 different actions 37 times. Widened at 4 different actions 21 times. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-03 17:27:20,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 17:27:20,356 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-03 17:27:20,419 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 54.17% of their original sizes. [2018-12-03 17:27:20,419 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-03 17:27:20,750 INFO L418 sIntCurrentIteration]: We unified 9 AI predicates to 9 [2018-12-03 17:27:20,751 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-03 17:27:20,752 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-03 17:27:20,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 12 [2018-12-03 17:27:20,752 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 17:27:20,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 17:27:20,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 17:27:20,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-12-03 17:27:20,754 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 9 states. [2018-12-03 17:27:21,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 17:27:21,067 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2018-12-03 17:27:21,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 17:27:21,067 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2018-12-03 17:27:21,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 17:27:21,069 INFO L225 Difference]: With dead ends: 16 [2018-12-03 17:27:21,069 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 17:27:21,070 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-12-03 17:27:21,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 17:27:21,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 17:27:21,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 17:27:21,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 17:27:21,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-12-03 17:27:21,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 17:27:21,072 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 17:27:21,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 17:27:21,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 17:27:21,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 17:27:21,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 17:27:21,219 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2018-12-03 17:27:21,423 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 21 [2018-12-03 17:27:21,583 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 14 [2018-12-03 17:27:21,991 WARN L180 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 23 [2018-12-03 17:27:21,993 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 46) no Hoare annotation was computed. [2018-12-03 17:27:21,994 INFO L444 ceAbstractionStarter]: At program point L31(lines 27 32) the Hoare annotation is: (let ((.cse0 (+ |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start_main_~x~4))) (and (= (mod ULTIMATE.start_main_~y~4 4) 0) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= .cse0 4294967297) (<= 8 (* 2 ULTIMATE.start_main_~y~4)) (= (mod ULTIMATE.start_main_~x~4 4) 0) (<= 5 .cse0))) [2018-12-03 17:27:21,994 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 46) no Hoare annotation was computed. [2018-12-03 17:27:21,994 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 46) no Hoare annotation was computed. [2018-12-03 17:27:21,994 INFO L444 ceAbstractionStarter]: At program point L21(lines 21 28) the Hoare annotation is: (and (= (mod ULTIMATE.start_main_~y~4 4) 0) (<= 8 (* 2 ULTIMATE.start_main_~y~4)) (= (mod ULTIMATE.start_main_~x~4 4) 0) (<= 4 ULTIMATE.start_main_~x~4)) [2018-12-03 17:27:21,994 INFO L444 ceAbstractionStarter]: At program point L43(lines 43 44) the Hoare annotation is: false [2018-12-03 17:27:21,995 INFO L444 ceAbstractionStarter]: At program point L40(lines 17 40) the Hoare annotation is: (let ((.cse0 (* 2 ULTIMATE.start_main_~x~4))) (and (= (mod ULTIMATE.start_main_~y~4 4) 0) (<= .cse0 8589934592) (<= 0 .cse0) (<= 8 (* 2 ULTIMATE.start_main_~y~4)) (= (mod ULTIMATE.start_main_~x~4 4) 0))) [2018-12-03 17:27:21,995 INFO L444 ceAbstractionStarter]: At program point L35(lines 35 41) the Hoare annotation is: (and (= (mod ULTIMATE.start_main_~y~4 4) 0) (<= ULTIMATE.start_main_~x~4 (+ ULTIMATE.start___VERIFIER_assert_~cond 4294967295)) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| 1) (<= (+ ULTIMATE.start___VERIFIER_assert_~cond 3) ULTIMATE.start_main_~y~4) (= ULTIMATE.start___VERIFIER_assert_~cond 1) (= (mod ULTIMATE.start_main_~x~4 4) 0) (<= 5 (+ |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start_main_~x~4))) [2018-12-03 17:27:21,995 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 45) no Hoare annotation was computed. [2018-12-03 17:27:22,002 INFO L202 PluginConnector]: Adding new model jain_5.i_2.bplTransformedIcfg_BEv2_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 05:27:22 BoogieIcfgContainer [2018-12-03 17:27:22,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 17:27:22,004 INFO L168 Benchmark]: Toolchain (without parser) took 3640.48 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 665.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -644.8 MB). Peak memory consumption was 112.0 MB. Max. memory is 7.1 GB. [2018-12-03 17:27:22,005 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 17:27:22,006 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 17:27:22,007 INFO L168 Benchmark]: Boogie Preprocessor took 21.02 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 17:27:22,008 INFO L168 Benchmark]: RCFGBuilder took 358.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 17:27:22,009 INFO L168 Benchmark]: TraceAbstraction took 3220.17 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 665.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -666.0 MB). Peak memory consumption was 90.8 MB. Max. memory is 7.1 GB. [2018-12-03 17:27:22,015 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.02 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 358.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3220.17 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 665.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -666.0 MB). Peak memory consumption was 90.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 45]: 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: 27]: Loop Invariant Derived loop invariant: ((((main_~y~4 % 4 == 0 && __VERIFIER_assert_#in~cond == 1) && __VERIFIER_assert_#in~cond + main_~x~4 <= 4294967297) && 8 <= 2 * main_~y~4) && main_~x~4 % 4 == 0) && 5 <= __VERIFIER_assert_#in~cond + main_~x~4 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((main_~y~4 % 4 == 0 && 8 <= 2 * main_~y~4) && main_~x~4 % 4 == 0) && 4 <= main_~x~4 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (((main_~y~4 % 4 == 0 && 2 * main_~x~4 <= 8589934592) && 0 <= 2 * main_~x~4) && 8 <= 2 * main_~y~4) && main_~x~4 % 4 == 0 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((main_~y~4 % 4 == 0 && main_~x~4 <= __VERIFIER_assert_~cond + 4294967295) && __VERIFIER_assert_#in~cond == 1) && __VERIFIER_assert_~cond + 3 <= main_~y~4) && __VERIFIER_assert_~cond == 1) && main_~x~4 % 4 == 0) && 5 <= __VERIFIER_assert_#in~cond + main_~x~4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 25 SDslu, 20 SDs, 0 SdLazy, 22 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.911111111111111 AbsIntWeakeningRatio, 0.4444444444444444 AbsIntAvgWeakeningVarsNumRemoved, 6.111111111111111 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 12 NumberOfFragments, 107 HoareAnnotationTreeSize, 5 FomulaSimplifications, 142 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 5 FomulaSimplificationsInter, 345 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 343 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...