java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/codeblockAssertOrder01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-e1a14da [2018-12-24 14:16:26,066 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-24 14:16:26,068 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-24 14:16:26,087 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-24 14:16:26,087 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-24 14:16:26,088 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-24 14:16:26,090 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-24 14:16:26,093 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-24 14:16:26,095 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-24 14:16:26,096 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-24 14:16:26,099 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-12-24 14:16:26,148 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf [2018-12-24 14:16:26,161 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-24 14:16:26,161 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-24 14:16:26,162 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-24 14:16:26,162 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-24 14:16:26,162 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-24 14:16:26,162 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-24 14:16:26,162 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2018-12-24 14:16:26,163 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-24 14:16:26,163 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-24 14:16:26,163 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2018-12-24 14:16:26,163 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-24 14:16:26,163 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-24 14:16:26,164 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-24 14:16:26,164 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-24 14:16:26,164 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-24 14:16:26,164 INFO L133 SettingsManager]: * Use SBE=true [2018-12-24 14:16:26,165 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-24 14:16:26,165 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-24 14:16:26,165 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-24 14:16:26,165 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-24 14:16:26,166 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-24 14:16:26,166 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-24 14:16:26,166 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-24 14:16:26,166 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-24 14:16:26,166 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-24 14:16:26,166 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-24 14:16:26,167 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-24 14:16:26,167 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-24 14:16:26,167 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-24 14:16:26,167 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-24 14:16:26,168 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-24 14:16:26,168 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-24 14:16:26,168 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-24 14:16:26,168 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-24 14:16:26,168 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-24 14:16:26,169 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-24 14:16:26,169 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-24 14:16:26,169 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-24 14:16:26,169 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-24 14:16:26,201 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-24 14:16:26,215 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-24 14:16:26,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-24 14:16:26,222 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-24 14:16:26,223 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-24 14:16:26,224 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/codeblockAssertOrder01.bpl [2018-12-24 14:16:26,225 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/codeblockAssertOrder01.bpl' [2018-12-24 14:16:26,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-24 14:16:26,260 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-24 14:16:26,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-24 14:16:26,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-24 14:16:26,262 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-24 14:16:26,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:16:26" (1/1) ... [2018-12-24 14:16:26,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:16:26" (1/1) ... [2018-12-24 14:16:26,295 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-24 14:16:26,296 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-24 14:16:26,296 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-24 14:16:26,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-24 14:16:26,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-24 14:16:26,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-24 14:16:26,300 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-24 14:16:26,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:16:26" (1/1) ... [2018-12-24 14:16:26,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:16:26" (1/1) ... [2018-12-24 14:16:26,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:16:26" (1/1) ... [2018-12-24 14:16:26,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:16:26" (1/1) ... [2018-12-24 14:16:26,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:16:26" (1/1) ... [2018-12-24 14:16:26,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:16:26" (1/1) ... [2018-12-24 14:16:26,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:16:26" (1/1) ... [2018-12-24 14:16:26,323 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-24 14:16:26,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-24 14:16:26,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-24 14:16:26,323 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-24 14:16:26,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:16:26" (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 [2018-12-24 14:16:26,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-24 14:16:26,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-24 14:16:26,647 INFO L272 CfgBuilder]: Using library mode [2018-12-24 14:16:26,648 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-24 14:16:26,649 INFO L202 PluginConnector]: Adding new model codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 02:16:26 BoogieIcfgContainer [2018-12-24 14:16:26,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-24 14:16:26,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-24 14:16:26,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-24 14:16:26,653 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-24 14:16:26,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.12 02:16:26" (1/2) ... [2018-12-24 14:16:26,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542cc9c7 and model type codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.12 02:16:26, skipping insertion in model container [2018-12-24 14:16:26,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.12 02:16:26" (2/2) ... [2018-12-24 14:16:26,657 INFO L112 eAbstractionObserver]: Analyzing ICFG codeblockAssertOrder01.bpl [2018-12-24 14:16:26,670 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-24 14:16:26,679 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-24 14:16:26,700 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-24 14:16:26,741 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-24 14:16:26,742 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-24 14:16:26,742 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-24 14:16:26,742 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-24 14:16:26,742 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-24 14:16:26,743 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-24 14:16:26,743 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-24 14:16:26,743 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-24 14:16:26,762 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-12-24 14:16:26,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-24 14:16:26,776 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 14:16:26,777 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-24 14:16:26,784 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 14:16:26,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 14:16:26,791 INFO L82 PathProgramCache]: Analyzing trace with hash 29984, now seen corresponding path program 1 times [2018-12-24 14:16:26,794 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 14:16:26,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:16:26,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 14:16:26,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:16:26,847 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 14:16:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 14:16:26,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 14:16:26,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-24 14:16:26,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-24 14:16:26,943 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-24 14:16:26,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-24 14:16:26,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-24 14:16:26,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-24 14:16:26,962 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-12-24 14:16:27,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 14:16:27,020 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2018-12-24 14:16:27,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-24 14:16:27,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-24 14:16:27,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 14:16:27,034 INFO L225 Difference]: With dead ends: 11 [2018-12-24 14:16:27,035 INFO L226 Difference]: Without dead ends: 5 [2018-12-24 14:16:27,038 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-24 14:16:27,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-12-24 14:16:27,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-12-24 14:16:27,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-24 14:16:27,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-12-24 14:16:27,071 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-12-24 14:16:27,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 14:16:27,071 INFO L480 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-12-24 14:16:27,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-24 14:16:27,071 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-12-24 14:16:27,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-24 14:16:27,072 INFO L394 BasicCegarLoop]: Found error trace [2018-12-24 14:16:27,072 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-24 14:16:27,072 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-24 14:16:27,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 14:16:27,073 INFO L82 PathProgramCache]: Analyzing trace with hash 927558, now seen corresponding path program 1 times [2018-12-24 14:16:27,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-24 14:16:27,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:16:27,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-24 14:16:27,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-24 14:16:27,074 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-24 14:16:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-24 14:16:27,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-24 14:16:27,188 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-24 14:16:27,189 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-24 14:16:27,190 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 5 with the following transitions: [2018-12-24 14:16:27,199 INFO L207 CegarAbsIntRunner]: [0], [4], [6], [7] [2018-12-24 14:16:27,311 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-24 14:16:27,311 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-24 14:16:27,980 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-24 14:16:27,981 INFO L272 AbstractInterpreter]: Visited 4 different actions 28 times. Merged at 1 different actions 12 times. Widened at 1 different actions 8 times. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-24 14:16:27,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-24 14:16:27,988 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-24 14:16:28,085 INFO L227 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-12-24 14:16:28,085 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2018-12-24 14:16:30,402 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_idx_12 Int) (v_idx_10 Int) (v_idx_11 Int)) (exists ((v_v_348_1 Int) (v_b_48_1 Int) (v_v_349_1 Int) (v_b_49_1 Int) (v_v_350_1 Int)) (let ((.cse0 (* 2 v_b_48_1)) (.cse2 (+ v_v_349_1 38)) (.cse7 (+ v_v_349_1 c_main_q)) (.cse10 (* 2 v_b_49_1)) (.cse11 (* 2 c_main_q)) (.cse5 (+ v_v_349_1 37)) (.cse9 (+ v_b_48_1 v_b_49_1)) (.cse8 (+ v_b_48_1 v_v_349_1)) (.cse3 (+ v_b_49_1 v_v_349_1)) (.cse4 (* 2 v_v_349_1)) (.cse13 (+ v_b_49_1 c_main_q)) (.cse12 (+ v_b_48_1 c_main_q)) (.cse1 (+ v_b_48_1 1)) (.cse6 (+ c_main_q 1))) (and (<= .cse0 84) (<= .cse1 v_b_49_1) (<= 84 .cse0) (<= .cse2 v_b_49_1) (<= 48 .cse3) (<= .cse4 10) (<= c_main_q .cse5) (<= v_b_49_1 .cse2) (or (= v_v_349_1 (select c_main_a v_idx_11)) (< v_idx_11 v_b_48_1) (<= v_b_49_1 v_idx_11)) (<= .cse5 c_main_q) (<= v_b_49_1 .cse6) (<= 47 .cse7) (<= .cse5 v_b_48_1) (<= v_b_48_1 c_main_q) (or (<= v_b_48_1 v_idx_10) (= (select c_main_a v_idx_10) v_v_348_1)) (<= .cse8 47) (<= .cse9 85) (<= 86 .cse10) (<= .cse7 47) (<= .cse11 84) (<= c_main_q v_b_48_1) (<= .cse10 86) (<= 84 .cse11) (<= .cse12 84) (<= v_b_48_1 .cse5) (<= 85 .cse9) (<= 47 .cse8) (<= .cse3 48) (<= 10 .cse4) (<= .cse13 85) (<= 85 .cse13) (<= 84 .cse12) (<= v_b_49_1 .cse1) (<= .cse6 v_b_49_1) (or (< v_idx_12 v_b_49_1) (= v_v_350_1 (select c_main_a v_idx_12))))))) is different from false [2018-12-24 14:16:30,429 INFO L420 sIntCurrentIteration]: We unified 3 AI predicates to 3 [2018-12-24 14:16:30,430 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-24 14:16:30,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-24 14:16:30,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 5 [2018-12-24 14:16:30,431 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-24 14:16:30,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-24 14:16:30,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-24 14:16:30,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2018-12-24 14:16:30,434 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2018-12-24 14:16:32,577 WARN L838 $PredicateComparison]: unable to prove that (and (<= 0 (* 2 c_main_i)) (forall ((v_idx_12 Int) (v_idx_10 Int) (v_idx_11 Int)) (exists ((v_v_348_1 Int) (v_b_48_1 Int) (v_v_349_1 Int) (v_b_49_1 Int) (v_v_350_1 Int)) (let ((.cse0 (* 2 v_b_48_1)) (.cse2 (+ v_v_349_1 38)) (.cse7 (+ v_v_349_1 c_main_q)) (.cse10 (* 2 v_b_49_1)) (.cse11 (* 2 c_main_q)) (.cse5 (+ v_v_349_1 37)) (.cse9 (+ v_b_48_1 v_b_49_1)) (.cse8 (+ v_b_48_1 v_v_349_1)) (.cse3 (+ v_b_49_1 v_v_349_1)) (.cse4 (* 2 v_v_349_1)) (.cse13 (+ v_b_49_1 c_main_q)) (.cse12 (+ v_b_48_1 c_main_q)) (.cse1 (+ v_b_48_1 1)) (.cse6 (+ c_main_q 1))) (and (<= .cse0 84) (<= .cse1 v_b_49_1) (<= 84 .cse0) (<= .cse2 v_b_49_1) (<= 48 .cse3) (<= .cse4 10) (<= c_main_q .cse5) (<= v_b_49_1 .cse2) (or (= v_v_349_1 (select c_main_a v_idx_11)) (< v_idx_11 v_b_48_1) (<= v_b_49_1 v_idx_11)) (<= .cse5 c_main_q) (<= v_b_49_1 .cse6) (<= 47 .cse7) (<= .cse5 v_b_48_1) (<= v_b_48_1 c_main_q) (or (<= v_b_48_1 v_idx_10) (= (select c_main_a v_idx_10) v_v_348_1)) (<= .cse8 47) (<= .cse9 85) (<= 86 .cse10) (<= .cse7 47) (<= .cse11 84) (<= c_main_q v_b_48_1) (<= .cse10 86) (<= 84 .cse11) (<= .cse12 84) (<= v_b_48_1 .cse5) (<= 85 .cse9) (<= 47 .cse8) (<= .cse3 48) (<= 10 .cse4) (<= .cse13 85) (<= 85 .cse13) (<= 84 .cse12) (<= v_b_49_1 .cse1) (<= .cse6 v_b_49_1) (or (< v_idx_12 v_b_49_1) (= v_v_350_1 (select c_main_a v_idx_12)))))))) is different from false [2018-12-24 14:16:32,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-24 14:16:32,689 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2018-12-24 14:16:32,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-24 14:16:32,689 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-12-24 14:16:32,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-24 14:16:32,695 INFO L225 Difference]: With dead ends: 5 [2018-12-24 14:16:32,695 INFO L226 Difference]: Without dead ends: 0 [2018-12-24 14:16:32,696 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=2, NotChecked=6, Total=20 [2018-12-24 14:16:32,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-24 14:16:32,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-24 14:16:32,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-24 14:16:32,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-24 14:16:32,698 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2018-12-24 14:16:32,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-24 14:16:32,698 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-24 14:16:32,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-24 14:16:32,698 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-24 14:16:32,699 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-24 14:16:32,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-24 14:16:32,728 INFO L444 ceAbstractionStarter]: At program point L15-1(lines 15 17) the Hoare annotation is: (<= 0 (* 2 main_i)) [2018-12-24 14:16:32,728 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 10 22) no Hoare annotation was computed. [2018-12-24 14:16:32,728 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 22) no Hoare annotation was computed. [2018-12-24 14:16:32,729 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 22) no Hoare annotation was computed. [2018-12-24 14:16:32,729 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-12-24 14:16:32,729 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONASSERT(line 21) no Hoare annotation was computed. [2018-12-24 14:16:32,734 INFO L202 PluginConnector]: Adding new model codeblockAssertOrder01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.12 02:16:32 BoogieIcfgContainer [2018-12-24 14:16:32,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-24 14:16:32,735 INFO L168 Benchmark]: Toolchain (without parser) took 6477.04 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 687.9 MB). Free memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: -707.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-12-24 14:16:32,738 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 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. [2018-12-24 14:16:32,739 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.51 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. [2018-12-24 14:16:32,739 INFO L168 Benchmark]: Boogie Preprocessor took 23.46 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. [2018-12-24 14:16:32,740 INFO L168 Benchmark]: RCFGBuilder took 325.92 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. [2018-12-24 14:16:32,741 INFO L168 Benchmark]: TraceAbstraction took 6085.03 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 687.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -728.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-12-24 14:16:32,745 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 0.24 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 38.51 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 23.46 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 325.92 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 6085.03 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 687.9 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -728.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: 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: 15]: Loop Invariant Derived loop invariant: 0 <= 2 * i - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 6.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 1 SDslu, 4 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.0 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 5 HoareAnnotationTreeSize, 1 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...