java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --rcfgbuilder.command.for.external.solver 'z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000' -tc ../../../trunk/examples/toolchains/AutomizerBplInlineTransformed.xml --icfgtransformation.transformationtype MAP_ELIMINATION_MONNIAUX --icfgtransformation.map.elimination.monniaux.number.of.cells 1 -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ValueTerminatedArrayIteration01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 09:49:44,631 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 09:49:44,633 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 09:49:44,645 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 09:49:44,645 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 09:49:44,646 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 09:49:44,648 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 09:49:44,650 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 09:49:44,651 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 09:49:44,652 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 09:49:44,653 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 09:49:44,654 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 09:49:44,655 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 09:49:44,656 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 09:49:44,658 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 09:49:44,659 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 09:49:44,660 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 09:49:44,665 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 09:49:44,671 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 09:49:44,676 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 09:49:44,677 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 09:49:44,680 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 09:49:44,685 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 09:49:44,686 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 09:49:44,686 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 09:49:44,687 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 09:49:44,687 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 09:49:44,688 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 09:49:44,688 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 09:49:44,689 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 09:49:44,690 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 09:49:44,691 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 09:49:44,692 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 09:49:44,692 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 09:49:44,693 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 09:49:44,693 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 09:49:44,693 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 09:49:44,694 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 09:49:44,695 INFO L146 ILogger]: Finished resetting all preferences to default values... Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Command for external solver -> z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: TransformationType -> MAP_ELIMINATION_MONNIAUX Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: Map elimination Monniaux: number of cells -> 1 [2019-05-23 09:49:44,743 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 09:49:44,756 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 09:49:44,760 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 09:49:44,761 INFO L146 ILogger]: Initializing Boogie PL CUP Parser... [2019-05-23 09:49:44,762 INFO L146 ILogger]: Boogie PL CUP Parser initialized [2019-05-23 09:49:44,762 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ValueTerminatedArrayIteration01.bpl [2019-05-23 09:49:44,762 INFO L146 ILogger]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ValueTerminatedArrayIteration01.bpl' [2019-05-23 09:49:44,792 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 09:49:44,793 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 09:49:44,794 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 09:49:44,794 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 09:49:44,795 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 09:49:44,811 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:44" (1/1) ... [2019-05-23 09:49:44,822 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:44" (1/1) ... [2019-05-23 09:49:44,829 WARN L146 ILogger]: Program contained no entry procedure! [2019-05-23 09:49:44,829 WARN L146 ILogger]: Missing entry procedures: [ULTIMATE.start] [2019-05-23 09:49:44,829 WARN L146 ILogger]: Fallback enabled. All procedures will be processed. [2019-05-23 09:49:44,832 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 09:49:44,833 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 09:49:44,834 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 09:49:44,834 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 09:49:44,846 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:44" (1/1) ... [2019-05-23 09:49:44,846 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:44" (1/1) ... [2019-05-23 09:49:44,847 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:44" (1/1) ... [2019-05-23 09:49:44,848 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:44" (1/1) ... [2019-05-23 09:49:44,851 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:44" (1/1) ... [2019-05-23 09:49:44,857 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:44" (1/1) ... [2019-05-23 09:49:44,858 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:44" (1/1) ... [2019-05-23 09:49:44,859 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 09:49:44,860 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 09:49:44,860 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 09:49:44,860 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 09:49:44,861 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:44" (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:4096 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4096 -smt2 -in -t:12000 [2019-05-23 09:49:44,913 INFO L146 ILogger]: Specification and implementation of procedure main given in one single declaration [2019-05-23 09:49:44,913 INFO L146 ILogger]: Found specification of procedure main [2019-05-23 09:49:44,913 INFO L146 ILogger]: Found implementation of procedure main [2019-05-23 09:49:45,077 INFO L146 ILogger]: Using library mode [2019-05-23 09:49:45,077 INFO L146 ILogger]: Removed 0 assume(true) statements. [2019-05-23 09:49:45,078 INFO L146 ILogger]: Adding new model ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:49:45 BoogieIcfgContainer [2019-05-23 09:49:45,078 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 09:49:45,079 INFO L146 ILogger]: ------------------------IcfgTransformer---------------------------- [2019-05-23 09:49:45,079 INFO L146 ILogger]: Initializing IcfgTransformer... [2019-05-23 09:49:45,079 INFO L146 ILogger]: IcfgTransformer initialized [2019-05-23 09:49:45,082 INFO L146 ILogger]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:49:45" (1/1) ... [2019-05-23 09:49:45,117 INFO L146 ILogger]: mainENTRY [2019-05-23 09:49:45,118 INFO L146 ILogger]: In Formula: (and (= v_i_1 0) (<= 0 v_end_1) (= v_a_1 (store v_a_2 v_end_1 42))) InVars {a=v_a_2, end=v_end_1} OutVars{a=v_a_1, i=v_i_1, end=v_end_1} AuxVars[] AssignedVars[a, i] [2019-05-23 09:49:45,118 INFO L146 ILogger]: Out Formula: (and (or (= v_end_1 v_a_idx_0_term_1) (not v_a_idx_0_term_assigned_1)) (= v_i_1 0) (= v_a_val_0_out_1 v_a_val_0_in_1) (<= 0 v_end_1) v_a_idx_0_term_assigned_1 (or (= 42 v_a_val_0_in_1) (not (= v_end_1 v_a_idx_0_term_1)))) InVars {end=v_end_1, a_val_0=v_a_val_0_in_1, a_idx_0_bool=v_a_idx_0_term_assigned_1, a_idx_0=v_a_idx_0_term_1} OutVars{i=v_i_1, end=v_end_1, a_val_0=v_a_val_0_out_1, a_idx_0_bool=v_a_idx_0_term_assigned_1, a_idx_0=v_a_idx_0_term_1} AuxVars[] AssignedVars[i, a_val_0] [2019-05-23 09:49:45,118 INFO L146 ILogger]: L17-1 [2019-05-23 09:49:45,122 INFO L146 ILogger]: L17-1 [2019-05-23 09:49:45,123 INFO L146 ILogger]: In Formula: (and (= v_i_2 (+ v_i_3 1)) (not (= (select v_a_3 v_i_3) 42))) InVars {a=v_a_3, i=v_i_3} OutVars{a=v_a_3, i=v_i_2} AuxVars[] AssignedVars[i] [2019-05-23 09:49:45,123 INFO L146 ILogger]: Out Formula: (and (or (= v_i_3 v_a_idx_0_term_2) (not v_a_idx_0_term_assigned_1)) (= v_i_2 (+ v_i_3 1)) (not (= 42 v_v_a_3_aux_1)) (or (= v_v_a_3_aux_1 v_a_val_0_in_2) (not (= v_i_3 v_a_idx_0_term_2))) v_a_idx_0_term_assigned_1) InVars {i=v_i_3, a_val_0=v_a_val_0_in_2, a_idx_0_bool=v_a_idx_0_term_assigned_1, a_idx_0=v_a_idx_0_term_2} OutVars{i=v_i_2, a_val_0=v_a_val_0_in_2, a_idx_0_bool=v_a_idx_0_term_assigned_1, a_idx_0=v_a_idx_0_term_2} AuxVars[v_v_a_3_aux_1] AssignedVars[i] [2019-05-23 09:49:45,123 INFO L146 ILogger]: L17-1 [2019-05-23 09:49:45,126 INFO L146 ILogger]: L17-1 [2019-05-23 09:49:45,126 INFO L146 ILogger]: In Formula: (= (select v_a_4 v_i_4) 42) InVars {a=v_a_4, i=v_i_4} OutVars{a=v_a_4, i=v_i_4} AuxVars[] AssignedVars[] [2019-05-23 09:49:45,127 INFO L146 ILogger]: Out Formula: (and (or (= v_v_a_4_aux_1 v_a_val_0_in_3) (not (= v_i_4 v_a_idx_0_term_3))) (or (= v_i_4 v_a_idx_0_term_3) (not v_a_idx_0_term_assigned_1)) (= 42 v_v_a_4_aux_1) v_a_idx_0_term_assigned_1) InVars {i=v_i_4, a_val_0=v_a_val_0_in_3, a_idx_0_bool=v_a_idx_0_term_assigned_1, a_idx_0=v_a_idx_0_term_3} OutVars{i=v_i_4, a_val_0=v_a_val_0_in_3, a_idx_0_bool=v_a_idx_0_term_assigned_1, a_idx_0=v_a_idx_0_term_3} AuxVars[v_v_a_4_aux_1] AssignedVars[] [2019-05-23 09:49:45,127 INFO L146 ILogger]: L20 [2019-05-23 09:49:45,138 INFO L146 ILogger]: Adding new model ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 09:49:45 BasicIcfg [2019-05-23 09:49:45,138 INFO L146 ILogger]: ------------------------ END IcfgTransformer---------------------------- [2019-05-23 09:49:45,139 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 09:49:45,140 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 09:49:45,145 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 09:49:45,146 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:49:44" (1/3) ... [2019-05-23 09:49:45,147 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2dee35 and model type ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 09:49:45, skipping insertion in model container [2019-05-23 09:49:45,147 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:49:45" (2/3) ... [2019-05-23 09:49:45,148 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2dee35 and model type ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 09:49:45, skipping insertion in model container [2019-05-23 09:49:45,148 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 09:49:45" (3/3) ... [2019-05-23 09:49:45,150 INFO L146 ILogger]: Analyzing ICFG ValueTerminatedArrayIteration01.bplME [2019-05-23 09:49:45,159 INFO L146 ILogger]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-05-23 09:49:45,165 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 09:49:45,183 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 09:49:45,205 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 09:49:45,206 INFO L146 ILogger]: Interprodecural is true [2019-05-23 09:49:45,206 INFO L146 ILogger]: Hoare is false [2019-05-23 09:49:45,206 INFO L146 ILogger]: Compute interpolants for ForwardPredicates [2019-05-23 09:49:45,206 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 09:49:45,206 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 09:49:45,207 INFO L146 ILogger]: Difference is false [2019-05-23 09:49:45,207 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 09:49:45,207 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 09:49:45,218 INFO L146 ILogger]: Start isEmpty. Operand 5 states. [2019-05-23 09:49:45,228 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 4 [2019-05-23 09:49:45,230 INFO L146 ILogger]: Found error trace [2019-05-23 09:49:45,231 INFO L146 ILogger]: trace histogram [1, 1, 1] [2019-05-23 09:49:45,233 INFO L146 ILogger]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:49:45,241 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:49:45,241 INFO L146 ILogger]: Analyzing trace with hash 40779, now seen corresponding path program 1 times [2019-05-23 09:49:45,283 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:49:45,320 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:49:45,323 INFO L146 ILogger]: Trace formula consists of 16 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 09:49:45,328 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:49:45,393 INFO L146 ILogger]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:49:45,396 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 09:49:45,397 INFO L146 ILogger]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-05-23 09:49:45,402 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 09:49:45,426 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 09:49:45,427 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 09:49:45,430 INFO L146 ILogger]: Start difference. First operand 5 states. Second operand 3 states. [2019-05-23 09:49:45,528 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:49:45,529 INFO L146 ILogger]: Finished difference Result 8 states and 8 transitions. [2019-05-23 09:49:45,529 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 09:49:45,531 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 3 [2019-05-23 09:49:45,531 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:49:45,539 INFO L146 ILogger]: With dead ends: 8 [2019-05-23 09:49:45,539 INFO L146 ILogger]: Without dead ends: 5 [2019-05-23 09:49:45,541 INFO L146 ILogger]: 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 [2019-05-23 09:49:45,556 INFO L146 ILogger]: Start minimizeSevpa. Operand 5 states. [2019-05-23 09:49:45,568 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-05-23 09:49:45,569 INFO L146 ILogger]: Start removeUnreachable. Operand 5 states. [2019-05-23 09:49:45,570 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-05-23 09:49:45,571 INFO L146 ILogger]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-05-23 09:49:45,571 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:49:45,572 INFO L146 ILogger]: Abstraction has 5 states and 5 transitions. [2019-05-23 09:49:45,572 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 09:49:45,572 INFO L146 ILogger]: Start isEmpty. Operand 5 states and 5 transitions. [2019-05-23 09:49:45,572 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 5 [2019-05-23 09:49:45,573 INFO L146 ILogger]: Found error trace [2019-05-23 09:49:45,573 INFO L146 ILogger]: trace histogram [1, 1, 1, 1] [2019-05-23 09:49:45,573 INFO L146 ILogger]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:49:45,573 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:49:45,574 INFO L146 ILogger]: Analyzing trace with hash 1263171, now seen corresponding path program 1 times [2019-05-23 09:49:45,575 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:49:45,588 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:49:45,590 INFO L146 ILogger]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 09:49:45,591 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:49:45,697 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-05-23 09:49:45,698 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 09:49:45,698 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 09:49:45,700 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 09:49:45,700 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 09:49:45,700 INFO L146 ILogger]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-05-23 09:49:45,701 INFO L146 ILogger]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2019-05-23 09:49:45,754 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:49:45,754 INFO L146 ILogger]: Finished difference Result 4 states and 4 transitions. [2019-05-23 09:49:45,755 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 09:49:45,755 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 4 [2019-05-23 09:49:45,755 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:49:45,755 INFO L146 ILogger]: With dead ends: 4 [2019-05-23 09:49:45,755 INFO L146 ILogger]: Without dead ends: 0 [2019-05-23 09:49:45,756 INFO L146 ILogger]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-05-23 09:49:45,757 INFO L146 ILogger]: Start minimizeSevpa. Operand 0 states. [2019-05-23 09:49:45,757 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-05-23 09:49:45,757 INFO L146 ILogger]: Start removeUnreachable. Operand 0 states. [2019-05-23 09:49:45,757 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-05-23 09:49:45,757 INFO L146 ILogger]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-05-23 09:49:45,758 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:49:45,758 INFO L146 ILogger]: Abstraction has 0 states and 0 transitions. [2019-05-23 09:49:45,758 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 09:49:45,758 INFO L146 ILogger]: Start isEmpty. Operand 0 states and 0 transitions. [2019-05-23 09:49:45,758 INFO L146 ILogger]: Finished isEmpty. No accepting run. [2019-05-23 09:49:45,762 INFO L146 ILogger]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-05-23 09:49:45,764 INFO L146 ILogger]: Adding new model ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 09:49:45 BasicIcfg [2019-05-23 09:49:45,764 INFO L146 ILogger]: ------------------------ END TraceAbstraction---------------------------- [2019-05-23 09:49:45,767 INFO L146 ILogger]: Toolchain (without parser) took 972.17 ms. Allocated memory is still 133.7 MB. Free memory was 111.3 MB in the beginning and 68.8 MB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2019-05-23 09:49:45,768 INFO L146 ILogger]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 133.7 MB. Free memory was 112.5 MB in the beginning and 112.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-05-23 09:49:45,769 INFO L146 ILogger]: Boogie Procedure Inliner took 38.79 ms. Allocated memory is still 133.7 MB. Free memory was 111.3 MB in the beginning and 109.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-05-23 09:49:45,770 INFO L146 ILogger]: Boogie Preprocessor took 25.95 ms. Allocated memory is still 133.7 MB. Free memory was 109.3 MB in the beginning and 108.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-05-23 09:49:45,771 INFO L146 ILogger]: RCFGBuilder took 218.57 ms. Allocated memory is still 133.7 MB. Free memory was 108.1 MB in the beginning and 98.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-05-23 09:49:45,772 INFO L146 ILogger]: IcfgTransformer took 59.50 ms. Allocated memory is still 133.7 MB. Free memory was 98.9 MB in the beginning and 95.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. [2019-05-23 09:49:45,773 INFO L146 ILogger]: TraceAbstraction took 624.80 ms. Allocated memory is still 133.7 MB. Free memory was 95.6 MB in the beginning and 68.8 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2019-05-23 09:49:45,779 INFO L146 ILogger]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 133.7 MB. Free memory was 112.5 MB in the beginning and 112.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 38.79 ms. Allocated memory is still 133.7 MB. Free memory was 111.3 MB in the beginning and 109.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.95 ms. Allocated memory is still 133.7 MB. Free memory was 109.3 MB in the beginning and 108.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 218.57 ms. Allocated memory is still 133.7 MB. Free memory was 108.1 MB in the beginning and 98.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * IcfgTransformer took 59.50 ms. Allocated memory is still 133.7 MB. Free memory was 98.9 MB in the beginning and 95.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 624.80 ms. Allocated memory is still 133.7 MB. Free memory was 95.6 MB in the beginning and 68.8 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 13 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 67 SizeOfPredicates, 2 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...