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_exp_cong.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_1.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 16:39:09,368 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 16:39:09,370 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 16:39:09,388 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-03 16:39:09,434 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_exp_cong.epf [2018-12-03 16:39:09,457 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 16:39:09,457 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 16:39:09,459 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 16:39:09,459 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 16:39:09,459 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 16:39:09,459 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 16:39:09,460 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 16:39:09,460 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 16:39:09,460 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 16:39:09,461 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 16:39:09,461 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 16:39:09,461 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 16:39:09,461 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 16:39:09,461 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 16:39:09,462 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 16:39:09,462 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 16:39:09,462 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 16:39:09,464 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 16:39:09,464 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 16:39:09,464 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 16:39:09,465 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 16:39:09,465 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 16:39:09,465 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 16:39:09,465 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 16:39:09,465 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 16:39:09,466 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 16:39:09,466 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 16:39:09,466 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 16:39:09,467 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 16:39:09,467 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 16:39:09,467 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 16:39:09,467 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 16:39:09,467 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 16:39:09,468 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 16:39:09,468 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 16:39:09,468 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 16:39:09,468 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 16:39:09,468 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 16:39:09,469 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 16:39:09,469 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 16:39:09,470 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 16:39:09,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 16:39:09,518 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 16:39:09,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 16:39:09,526 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 16:39:09,528 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 16:39:09,528 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_1.i_2.bpl [2018-12-03 16:39:09,529 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jain_1.i_2.bpl' [2018-12-03 16:39:09,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 16:39:09,576 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 16:39:09,577 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 16:39:09,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 16:39:09,578 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 16:39:09,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:39:09" (1/1) ... [2018-12-03 16:39:09,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:39:09" (1/1) ... [2018-12-03 16:39:09,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 16:39:09,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 16:39:09,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 16:39:09,618 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 16:39:09,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:39:09" (1/1) ... [2018-12-03 16:39:09,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:39:09" (1/1) ... [2018-12-03 16:39:09,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:39:09" (1/1) ... [2018-12-03 16:39:09,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:39:09" (1/1) ... [2018-12-03 16:39:09,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:39:09" (1/1) ... [2018-12-03 16:39:09,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:39:09" (1/1) ... [2018-12-03 16:39:09,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:39:09" (1/1) ... [2018-12-03 16:39:09,644 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 16:39:09,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 16:39:09,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 16:39:09,646 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 16:39:09,647 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:39:09" (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 16:39:09,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 16:39:09,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 16:39:09,906 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 16:39:09,906 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 16:39:09,907 INFO L202 PluginConnector]: Adding new model jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:39:09 BoogieIcfgContainer [2018-12-03 16:39:09,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 16:39:09,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 16:39:09,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 16:39:09,913 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 16:39:09,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:39:09" (1/2) ... [2018-12-03 16:39:09,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2e4245 and model type jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:39:09, skipping insertion in model container [2018-12-03 16:39:09,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:39:09" (2/2) ... [2018-12-03 16:39:09,916 INFO L112 eAbstractionObserver]: Analyzing ICFG jain_1.i_2.bpl [2018-12-03 16:39:09,926 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 16:39:09,934 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 16:39:09,953 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 16:39:09,988 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 16:39:09,988 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 16:39:09,988 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 16:39:09,989 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 16:39:09,989 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 16:39:09,989 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 16:39:09,989 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 16:39:09,990 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 16:39:10,005 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-12-03 16:39:10,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-03 16:39:10,012 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 16:39:10,013 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-03 16:39:10,015 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 16:39:10,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:39:10,022 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2018-12-03 16:39:10,025 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 16:39:10,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:39:10,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:39:10,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:39:10,080 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 16:39:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:39:10,243 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 16:39:10,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 16:39:10,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 16:39:10,247 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 16:39:10,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-03 16:39:10,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-03 16:39:10,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-03 16:39:10,283 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2018-12-03 16:39:10,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 16:39:10,417 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-12-03 16:39:10,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 16:39:10,419 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-12-03 16:39:10,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 16:39:10,430 INFO L225 Difference]: With dead ends: 12 [2018-12-03 16:39:10,430 INFO L226 Difference]: Without dead ends: 8 [2018-12-03 16:39:10,434 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 16:39:10,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-12-03 16:39:10,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-12-03 16:39:10,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-03 16:39:10,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-12-03 16:39:10,470 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-12-03 16:39:10,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 16:39:10,470 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-12-03 16:39:10,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-03 16:39:10,471 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-12-03 16:39:10,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-03 16:39:10,471 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 16:39:10,471 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-12-03 16:39:10,472 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 16:39:10,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:39:10,472 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times [2018-12-03 16:39:10,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 16:39:10,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:39:10,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:39:10,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:39:10,474 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 16:39:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:39:10,701 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 16:39:10,702 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 16:39:10,702 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 16:39:10,703 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 7 with the following transitions: [2018-12-03 16:39:10,705 INFO L205 CegarAbsIntRunner]: [0], [2], [6], [8], [10] [2018-12-03 16:39:10,746 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-03 16:39:10,747 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 16:39:10,889 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 16:39:10,891 INFO L272 AbstractInterpreter]: Visited 5 different actions 10 times. Merged at 4 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-03 16:39:10,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:39:10,940 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 16:39:10,940 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 16:39:10,940 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 16:39:10,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:39:10,959 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 16:39:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:39:11,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 16:39:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 16:39:11,655 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 16:39:32,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 16:39:32,219 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 16:39:32,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-12-03 16:39:32,219 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 16:39:32,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 16:39:32,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 16:39:32,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=76, Unknown=8, NotChecked=0, Total=132 [2018-12-03 16:39:32,221 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 9 states. [2018-12-03 16:39:34,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 16:39:34,085 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-12-03 16:39:34,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 16:39:34,086 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 6 [2018-12-03 16:39:34,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 16:39:34,087 INFO L225 Difference]: With dead ends: 7 [2018-12-03 16:39:34,087 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 16:39:34,089 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=60, Invalid=88, Unknown=8, NotChecked=0, Total=156 [2018-12-03 16:39:34,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 16:39:34,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 16:39:34,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 16:39:34,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 16:39:34,090 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-12-03 16:39:34,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 16:39:34,091 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 16:39:34,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 16:39:34,091 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 16:39:34,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 16:39:34,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 16:39:34,321 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 34) no Hoare annotation was computed. [2018-12-03 16:39:34,321 INFO L444 ceAbstractionStarter]: At program point L31(lines 31 32) the Hoare annotation is: false [2018-12-03 16:39:34,321 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 33) no Hoare annotation was computed. [2018-12-03 16:39:34,321 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 34) no Hoare annotation was computed. [2018-12-03 16:39:34,322 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 34) no Hoare annotation was computed. [2018-12-03 16:39:34,322 INFO L444 ceAbstractionStarter]: At program point L27(lines 13 27) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~y~5 1) (<= 1 ULTIMATE.start_main_~y~5)) (and (exists ((|v_ULTIMATE.start_main_#t~nondet0_4| Int)) (let ((.cse0 (+ (* 2 |v_ULTIMATE.start_main_#t~nondet0_4|) 1))) (and (<= ULTIMATE.start_main_~y~5 .cse0) (<= .cse0 ULTIMATE.start_main_~y~5)))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond))) [2018-12-03 16:39:34,322 INFO L444 ceAbstractionStarter]: At program point L22(lines 22 28) the Hoare annotation is: (and (let ((.cse0 (+ ULTIMATE.start_main_~y~5 1))) (<= .cse0 (* 2 (div .cse0 2)))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) [2018-12-03 16:39:34,334 INFO L202 PluginConnector]: Adding new model jain_1.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 04:39:34 BoogieIcfgContainer [2018-12-03 16:39:34,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 16:39:34,335 INFO L168 Benchmark]: Toolchain (without parser) took 24760.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-12-03 16:39:34,337 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 16:39:34,338 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.97 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 16:39:34,339 INFO L168 Benchmark]: Boogie Preprocessor took 27.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-03 16:39:34,340 INFO L168 Benchmark]: RCFGBuilder took 261.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 16:39:34,341 INFO L168 Benchmark]: TraceAbstraction took 24426.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-12-03 16:39:34,345 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 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 39.97 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 261.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24426.07 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (main_~y~5 <= 1 && 1 <= main_~y~5) || ((exists v_ULTIMATE.start_main_#t~nondet0_4 : int :: main_~y~5 <= 2 * v_ULTIMATE.start_main_#t~nondet0_4 + 1 && 2 * v_ULTIMATE.start_main_#t~nondet0_4 + 1 <= main_~y~5) && 1 == __VERIFIER_assert_~cond) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: main_~y~5 + 1 <= 2 * ((main_~y~5 + 1) / 2) && 1 == __VERIFIER_assert_~cond - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 24.3s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 6 SDs, 0 SdLazy, 15 SolverSat, 5 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 21.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 44 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 21.5s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 5 QuantifiedInterpolants, 753 SizeOfPredicates, 7 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...