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/jm2006_variant.c.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 16:40:27,438 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 16:40:27,440 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 16:40:27,455 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 16:40:27,455 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 16:40:27,457 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 16:40:27,458 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 16:40:27,460 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 16:40:27,462 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 16:40:27,463 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 16:40:27,464 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-03 16:40:27,487 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 16:40:27,500 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 16:40:27,500 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 16:40:27,501 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 16:40:27,501 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 16:40:27,501 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 16:40:27,502 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 16:40:27,502 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 16:40:27,502 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 16:40:27,502 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 16:40:27,502 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 16:40:27,503 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 16:40:27,503 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 16:40:27,503 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 16:40:27,503 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 16:40:27,503 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 16:40:27,504 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 16:40:27,504 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 16:40:27,504 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 16:40:27,505 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 16:40:27,505 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 16:40:27,505 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 16:40:27,505 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 16:40:27,505 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 16:40:27,506 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 16:40:27,506 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 16:40:27,506 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 16:40:27,506 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 16:40:27,506 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 16:40:27,507 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 16:40:27,507 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 16:40:27,507 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 16:40:27,507 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 16:40:27,507 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 16:40:27,508 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 16:40:27,508 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 16:40:27,508 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 16:40:27,508 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 16:40:27,508 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 16:40:27,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 16:40:27,509 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 16:40:27,509 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 16:40:27,538 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 16:40:27,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 16:40:27,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 16:40:27,556 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 16:40:27,557 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 16:40:27,558 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006_variant.c.i_3.bpl [2018-12-03 16:40:27,558 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/jm2006_variant.c.i_3.bpl' [2018-12-03 16:40:27,593 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 16:40:27,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 16:40:27,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 16:40:27,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 16:40:27,595 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 16:40:27,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:40:27" (1/1) ... [2018-12-03 16:40:27,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:40:27" (1/1) ... [2018-12-03 16:40:27,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 16:40:27,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 16:40:27,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 16:40:27,631 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 16:40:27,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:40:27" (1/1) ... [2018-12-03 16:40:27,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:40:27" (1/1) ... [2018-12-03 16:40:27,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:40:27" (1/1) ... [2018-12-03 16:40:27,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:40:27" (1/1) ... [2018-12-03 16:40:27,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:40:27" (1/1) ... [2018-12-03 16:40:27,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:40:27" (1/1) ... [2018-12-03 16:40:27,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:40:27" (1/1) ... [2018-12-03 16:40:27,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 16:40:27,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 16:40:27,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 16:40:27,654 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 16:40:27,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:40:27" (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 16:40:27,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 16:40:27,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 16:40:27,980 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 16:40:27,981 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 16:40:27,981 INFO L202 PluginConnector]: Adding new model jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:40:27 BoogieIcfgContainer [2018-12-03 16:40:27,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 16:40:27,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 16:40:27,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 16:40:27,986 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 16:40:27,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:40:27" (1/2) ... [2018-12-03 16:40:27,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@398a059 and model type jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:40:27, skipping insertion in model container [2018-12-03 16:40:27,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:40:27" (2/2) ... [2018-12-03 16:40:27,992 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_variant.c.i_3.bpl [2018-12-03 16:40:28,004 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 16:40:28,013 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 16:40:28,031 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 16:40:28,067 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 16:40:28,068 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 16:40:28,068 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 16:40:28,068 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 16:40:28,068 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 16:40:28,069 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 16:40:28,069 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 16:40:28,069 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 16:40:28,083 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-12-03 16:40:28,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-03 16:40:28,089 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 16:40:28,090 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-03 16:40:28,092 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 16:40:28,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:40:28,099 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2018-12-03 16:40:28,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 16:40:28,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:40:28,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:40:28,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:40:28,148 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 16:40:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:40:28,672 WARN L180 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 23 [2018-12-03 16:40:28,675 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 16:40:28,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 16:40:28,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 16:40:28,678 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 16:40:28,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 16:40:28,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 16:40:28,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 16:40:28,699 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-12-03 16:40:28,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 16:40:28,754 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-12-03 16:40:28,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 16:40:28,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-03 16:40:28,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 16:40:28,766 INFO L225 Difference]: With dead ends: 9 [2018-12-03 16:40:28,766 INFO L226 Difference]: Without dead ends: 5 [2018-12-03 16:40:28,770 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 16:40:28,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-12-03 16:40:28,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-12-03 16:40:28,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-03 16:40:28,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-12-03 16:40:28,804 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-12-03 16:40:28,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 16:40:28,805 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-12-03 16:40:28,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 16:40:28,805 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-12-03 16:40:28,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-03 16:40:28,806 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 16:40:28,806 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-03 16:40:28,806 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 16:40:28,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:40:28,807 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2018-12-03 16:40:28,807 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 16:40:28,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:40:28,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:40:28,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:40:28,809 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 16:40:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:40:29,074 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2018-12-03 16:40:29,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 16:40:29,076 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 16:40:29,076 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 16:40:29,077 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2018-12-03 16:40:29,079 INFO L205 CegarAbsIntRunner]: [0], [5], [7], [9] [2018-12-03 16:40:29,121 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-03 16:40:29,121 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 16:40:29,339 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 16:40:29,341 INFO L272 AbstractInterpreter]: Visited 4 different actions 13 times. Merged at 3 different actions 9 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-03 16:40:29,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:40:29,378 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 16:40:29,378 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 16:40:29,379 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 16:40:29,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:40:29,389 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 16:40:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:40:29,425 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 16:40:29,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 16:40:29,672 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 16:40:29,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 16:40:29,857 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 16:40:29,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 7 [2018-12-03 16:40:29,857 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 16:40:29,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 16:40:29,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 16:40:29,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-03 16:40:29,859 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 6 states. [2018-12-03 16:40:29,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 16:40:29,897 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-12-03 16:40:29,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-03 16:40:29,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2018-12-03 16:40:29,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 16:40:29,898 INFO L225 Difference]: With dead ends: 8 [2018-12-03 16:40:29,898 INFO L226 Difference]: Without dead ends: 6 [2018-12-03 16:40:29,900 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-12-03 16:40:29,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-12-03 16:40:29,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-12-03 16:40:29,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-03 16:40:29,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2018-12-03 16:40:29,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2018-12-03 16:40:29,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 16:40:29,904 INFO L480 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2018-12-03 16:40:29,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 16:40:29,904 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2018-12-03 16:40:29,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-03 16:40:29,904 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 16:40:29,904 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2018-12-03 16:40:29,905 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 16:40:29,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:40:29,905 INFO L82 PathProgramCache]: Analyzing trace with hash 28844579, now seen corresponding path program 2 times [2018-12-03 16:40:29,905 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 16:40:29,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:40:29,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:40:29,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:40:29,907 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 16:40:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:40:30,205 WARN L180 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2018-12-03 16:40:30,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 16:40:30,207 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 16:40:30,208 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 16:40:30,208 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-03 16:40:30,208 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-03 16:40:30,208 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 16:40:30,208 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 16:40:30,220 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-03 16:40:30,221 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-03 16:40:30,235 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-12-03 16:40:30,235 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 16:40:30,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 16:40:30,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 16:40:30,361 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 16:40:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 16:40:30,524 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 16:40:30,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2018-12-03 16:40:30,525 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 16:40:30,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 16:40:30,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 16:40:30,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-12-03 16:40:30,526 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 8 states. [2018-12-03 16:40:30,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 16:40:30,560 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-12-03 16:40:30,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 16:40:30,562 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 5 [2018-12-03 16:40:30,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 16:40:30,563 INFO L225 Difference]: With dead ends: 10 [2018-12-03 16:40:30,563 INFO L226 Difference]: Without dead ends: 8 [2018-12-03 16:40:30,564 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2018-12-03 16:40:30,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-12-03 16:40:30,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-03 16:40:30,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-03 16:40:30,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-03 16:40:30,567 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2018-12-03 16:40:30,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 16:40:30,568 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-12-03 16:40:30,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 16:40:30,568 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-03 16:40:30,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-03 16:40:30,568 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 16:40:30,568 INFO L402 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2018-12-03 16:40:30,569 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 16:40:30,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:40:30,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1949894467, now seen corresponding path program 3 times [2018-12-03 16:40:30,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 16:40:30,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:40:30,570 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-03 16:40:30,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:40:30,570 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 16:40:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:40:31,013 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-03 16:40:31,014 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 16:40:31,014 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 16:40:31,014 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-03 16:40:31,014 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-03 16:40:31,015 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 16:40:31,015 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 16:40:31,025 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-12-03 16:40:31,026 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-12-03 16:40:31,046 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-12-03 16:40:31,047 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 16:40:31,049 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 16:40:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 16:40:31,198 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 16:40:31,340 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 16:40:31,361 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 16:40:31,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 15 [2018-12-03 16:40:31,361 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 16:40:31,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-03 16:40:31,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-03 16:40:31,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2018-12-03 16:40:31,363 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2018-12-03 16:40:31,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 16:40:31,422 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-12-03 16:40:31,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 16:40:31,424 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2018-12-03 16:40:31,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 16:40:31,424 INFO L225 Difference]: With dead ends: 9 [2018-12-03 16:40:31,424 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 16:40:31,425 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2018-12-03 16:40:31,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 16:40:31,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 16:40:31,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 16:40:31,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 16:40:31,426 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-12-03 16:40:31,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 16:40:31,427 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 16:40:31,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-03 16:40:31,427 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 16:40:31,427 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 16:40:31,431 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 16:40:31,612 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 58) no Hoare annotation was computed. [2018-12-03 16:40:31,613 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 58) no Hoare annotation was computed. [2018-12-03 16:40:31,613 INFO L444 ceAbstractionStarter]: At program point L45(lines 45 56) the Hoare annotation is: false [2018-12-03 16:40:31,613 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 58) no Hoare annotation was computed. [2018-12-03 16:40:31,614 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 57) no Hoare annotation was computed. [2018-12-03 16:40:31,615 INFO L444 ceAbstractionStarter]: At program point L55(lines 31 55) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~j~5 ULTIMATE.start_main_~x~5)) (.cse0 (+ ULTIMATE.start_main_~i~5 ULTIMATE.start_main_~y~5 ULTIMATE.start_main_~z~5))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2018-12-03 16:40:31,631 INFO L202 PluginConnector]: Adding new model jm2006_variant.c.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 04:40:31 BoogieIcfgContainer [2018-12-03 16:40:31,631 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 16:40:31,632 INFO L168 Benchmark]: Toolchain (without parser) took 4038.76 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 699.4 MB). Free memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: -721.4 MB). Peak memory consumption was 209.6 MB. Max. memory is 7.1 GB. [2018-12-03 16:40:31,633 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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 16:40:31,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.82 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 16:40:31,635 INFO L168 Benchmark]: Boogie Preprocessor took 21.88 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 16:40:31,636 INFO L168 Benchmark]: RCFGBuilder took 328.15 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 16:40:31,637 INFO L168 Benchmark]: TraceAbstraction took 3648.71 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 699.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -742.6 MB). Peak memory consumption was 188.4 MB. Max. memory is 7.1 GB. [2018-12-03 16:40:31,641 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 0.20 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 35.82 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 21.88 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 328.15 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3648.71 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 699.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -742.6 MB). Peak memory consumption was 188.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 57]: 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: main_~i~5 + main_~y~5 + main_~z~5 <= main_~j~5 + main_~x~5 && main_~j~5 + main_~x~5 <= main_~i~5 + main_~y~5 + main_~z~5 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: false - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 7 SDs, 0 SdLazy, 63 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 130 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 2374 SizeOfPredicates, 21 NumberOfNonLiveVariables, 139 ConjunctsInSsa, 90 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 1/42 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...