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 --rcfgbuilder.size.of.a.code.block SingleStatement --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 09:36:46,127 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 09:36:46,129 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 09:36:46,144 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 09:36:46,145 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 09:36:46,146 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 09:36:46,149 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 09:36:46,151 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 09:36:46,154 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 09:36:46,155 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 09:36:46,156 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 09:36:46,157 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 09:36:46,158 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 09:36:46,161 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 09:36:46,163 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 09:36:46,164 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 09:36:46,167 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 09:36:46,169 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 09:36:46,181 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 09:36:46,183 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 09:36:46,184 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 09:36:46,185 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 09:36:46,189 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 09:36:46,189 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 09:36:46,189 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 09:36:46,190 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 09:36:46,191 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 09:36:46,192 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 09:36:46,193 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 09:36:46,193 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 09:36:46,197 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 09:36:46,197 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 09:36:46,198 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... 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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.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: Map elimination Monniaux: number of cells -> 1 [2019-05-23 09:36:46,258 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 09:36:46,268 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 09:36:46,271 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 09:36:46,272 INFO L146 ILogger]: Initializing Boogie PL CUP Parser... [2019-05-23 09:36:46,272 INFO L146 ILogger]: Boogie PL CUP Parser initialized [2019-05-23 09:36:46,273 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 09:36:46,273 INFO L146 ILogger]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ValueTerminatedArrayIteration01.bpl' [2019-05-23 09:36:46,302 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 09:36:46,303 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 09:36:46,304 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 09:36:46,304 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 09:36:46,304 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 09:36:46,320 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 09:36:46" (1/1) ... [2019-05-23 09:36:46,329 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 09:36:46" (1/1) ... [2019-05-23 09:36:46,335 WARN L146 ILogger]: Program contained no entry procedure! [2019-05-23 09:36:46,335 WARN L146 ILogger]: Missing entry procedures: [ULTIMATE.start] [2019-05-23 09:36:46,335 WARN L146 ILogger]: Fallback enabled. All procedures will be processed. [2019-05-23 09:36:46,337 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 09:36:46,338 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 09:36:46,338 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 09:36:46,338 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 09:36:46,348 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:46" (1/1) ... [2019-05-23 09:36:46,348 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:46" (1/1) ... [2019-05-23 09:36:46,349 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:46" (1/1) ... [2019-05-23 09:36:46,349 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:46" (1/1) ... [2019-05-23 09:36:46,352 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:46" (1/1) ... [2019-05-23 09:36:46,355 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:46" (1/1) ... [2019-05-23 09:36:46,356 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:46" (1/1) ... [2019-05-23 09:36:46,357 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 09:36:46,358 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 09:36:46,358 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 09:36:46,358 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 09:36:46,359 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:46" (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 09:36:46,414 INFO L146 ILogger]: Specification and implementation of procedure main given in one single declaration [2019-05-23 09:36:46,414 INFO L146 ILogger]: Found specification of procedure main [2019-05-23 09:36:46,414 INFO L146 ILogger]: Found implementation of procedure main [2019-05-23 09:36:46,638 INFO L146 ILogger]: Using library mode [2019-05-23 09:36:46,639 INFO L146 ILogger]: Removed 0 assume(true) statements. [2019-05-23 09:36:46,640 INFO L146 ILogger]: Adding new model ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:36:46 BoogieIcfgContainer [2019-05-23 09:36:46,640 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 09:36:46,641 INFO L146 ILogger]: ------------------------IcfgTransformer---------------------------- [2019-05-23 09:36:46,641 INFO L146 ILogger]: Initializing IcfgTransformer... [2019-05-23 09:36:46,642 INFO L146 ILogger]: IcfgTransformer initialized [2019-05-23 09:36:46,645 INFO L146 ILogger]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:36:46" (1/1) ... [2019-05-23 09:36:46,680 INFO L146 ILogger]: L15 [2019-05-23 09:36:46,682 INFO L146 ILogger]: In Formula: (= v_a_1 (store v_a_2 v_end_2 42)) InVars {a=v_a_2, end=v_end_2} OutVars{a=v_a_1, end=v_end_2} AuxVars[] AssignedVars[a] [2019-05-23 09:36:46,682 INFO L146 ILogger]: Out Formula: (and (= v_a_val_0_out_1 v_a_val_0_in_1) (or (= v_end_2 v_a_idx_0_term_1) (not v_a_idx_0_term_assigned_1)) (or (= 42 v_a_val_0_in_1) (not (= v_end_2 v_a_idx_0_term_1))) v_a_idx_0_term_assigned_1) InVars {end=v_end_2, 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{end=v_end_2, 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[a_val_0] [2019-05-23 09:36:46,682 INFO L146 ILogger]: L16 [2019-05-23 09:36:46,687 INFO L146 ILogger]: L17-1 [2019-05-23 09:36:46,687 INFO L146 ILogger]: In Formula: (not (= 42 (select v_a_3 v_i_2))) InVars {a=v_a_3, i=v_i_2} OutVars{a=v_a_3, i=v_i_2} AuxVars[] AssignedVars[] [2019-05-23 09:36:46,687 INFO L146 ILogger]: Out Formula: (and (or (= v_v_a_3_aux_1 v_a_val_0_in_2) (not (= v_i_2 v_a_idx_0_term_2))) (not (= 42 v_v_a_3_aux_1)) (or (= v_i_2 v_a_idx_0_term_2) (not v_a_idx_0_term_assigned_1)) v_a_idx_0_term_assigned_1) InVars {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} 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[] [2019-05-23 09:36:46,688 INFO L146 ILogger]: L18 [2019-05-23 09:36:46,690 INFO L146 ILogger]: L17-1 [2019-05-23 09:36:46,690 INFO L146 ILogger]: In Formula: (= 42 (select v_a_4 v_i_5)) InVars {a=v_a_4, i=v_i_5} OutVars{a=v_a_4, i=v_i_5} AuxVars[] AssignedVars[] [2019-05-23 09:36:46,690 INFO L146 ILogger]: Out Formula: (and (or (= v_v_a_4_aux_1 v_a_val_0_in_3) (not (= v_i_5 v_a_idx_0_term_3))) (= 42 v_v_a_4_aux_1) v_a_idx_0_term_assigned_1 (or (= v_i_5 v_a_idx_0_term_3) (not v_a_idx_0_term_assigned_1))) InVars {i=v_i_5, 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_5, 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 09:36:46,690 INFO L146 ILogger]: L20 [2019-05-23 09:36:46,700 INFO L146 ILogger]: Adding new model ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 09:36:46 BasicIcfg [2019-05-23 09:36:46,701 INFO L146 ILogger]: ------------------------ END IcfgTransformer---------------------------- [2019-05-23 09:36:46,702 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 09:36:46,702 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 09:36:46,707 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 09:36:46,707 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:46" (1/3) ... [2019-05-23 09:36:46,708 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4d417d and model type ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 09:36:46, skipping insertion in model container [2019-05-23 09:36:46,708 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:36:46" (2/3) ... [2019-05-23 09:36:46,709 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e4d417d and model type ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 09:36:46, skipping insertion in model container [2019-05-23 09:36:46,709 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 09:36:46" (3/3) ... [2019-05-23 09:36:46,711 INFO L146 ILogger]: Analyzing ICFG ValueTerminatedArrayIteration01.bplME [2019-05-23 09:36:46,720 INFO L146 ILogger]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-05-23 09:36:46,729 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 09:36:46,746 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 09:36:46,777 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 09:36:46,778 INFO L146 ILogger]: Interprodecural is true [2019-05-23 09:36:46,779 INFO L146 ILogger]: Hoare is false [2019-05-23 09:36:46,780 INFO L146 ILogger]: Compute interpolants for ForwardPredicates [2019-05-23 09:36:46,780 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 09:36:46,780 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 09:36:46,780 INFO L146 ILogger]: Difference is false [2019-05-23 09:36:46,780 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 09:36:46,780 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 09:36:46,797 INFO L146 ILogger]: Start isEmpty. Operand 9 states. [2019-05-23 09:36:46,809 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 6 [2019-05-23 09:36:46,809 INFO L146 ILogger]: Found error trace [2019-05-23 09:36:46,810 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1] [2019-05-23 09:36:46,815 INFO L146 ILogger]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:36:46,821 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:36:46,821 INFO L146 ILogger]: Analyzing trace with hash 41066959, now seen corresponding path program 1 times [2019-05-23 09:36:46,865 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:36:46,896 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:36:46,899 INFO L146 ILogger]: Trace formula consists of 16 conjuncts, 3 conjunts are in the unsatisfiable core [2019-05-23 09:36:46,903 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:36:47,069 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 09:36:47,073 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 09:36:47,073 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 09:36:47,078 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 09:36:47,094 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 09:36:47,096 INFO L146 ILogger]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 09:36:47,099 INFO L146 ILogger]: Start difference. First operand 9 states. Second operand 4 states. [2019-05-23 09:36:47,191 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:36:47,191 INFO L146 ILogger]: Finished difference Result 14 states and 14 transitions. [2019-05-23 09:36:47,192 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 09:36:47,193 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 5 [2019-05-23 09:36:47,194 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:36:47,202 INFO L146 ILogger]: With dead ends: 14 [2019-05-23 09:36:47,202 INFO L146 ILogger]: Without dead ends: 9 [2019-05-23 09:36:47,204 INFO L146 ILogger]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-05-23 09:36:47,223 INFO L146 ILogger]: Start minimizeSevpa. Operand 9 states. [2019-05-23 09:36:47,234 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-05-23 09:36:47,235 INFO L146 ILogger]: Start removeUnreachable. Operand 8 states. [2019-05-23 09:36:47,236 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-05-23 09:36:47,237 INFO L146 ILogger]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2019-05-23 09:36:47,237 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:36:47,237 INFO L146 ILogger]: Abstraction has 8 states and 8 transitions. [2019-05-23 09:36:47,238 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 09:36:47,238 INFO L146 ILogger]: Start isEmpty. Operand 8 states and 8 transitions. [2019-05-23 09:36:47,238 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 8 [2019-05-23 09:36:47,238 INFO L146 ILogger]: Found error trace [2019-05-23 09:36:47,239 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-05-23 09:36:47,239 INFO L146 ILogger]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:36:47,239 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:36:47,240 INFO L146 ILogger]: Analyzing trace with hash 810611729, now seen corresponding path program 1 times [2019-05-23 09:36:47,241 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:36:47,260 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:36:47,262 INFO L146 ILogger]: Trace formula consists of 22 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 09:36:47,263 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:36:47,521 WARN L146 ILogger]: Spent 210.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 5 [2019-05-23 09:36:47,526 INFO L146 ILogger]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:36:47,527 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 09:36:47,527 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 09:36:47,531 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 09:36:47,531 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 09:36:47,531 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 09:36:47,532 INFO L146 ILogger]: Start difference. First operand 8 states and 8 transitions. Second operand 3 states. [2019-05-23 09:36:47,553 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:36:47,554 INFO L146 ILogger]: Finished difference Result 4 states and 3 transitions. [2019-05-23 09:36:47,554 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 09:36:47,555 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 7 [2019-05-23 09:36:47,555 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:36:47,555 INFO L146 ILogger]: With dead ends: 4 [2019-05-23 09:36:47,555 INFO L146 ILogger]: Without dead ends: 0 [2019-05-23 09:36:47,556 INFO L146 ILogger]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 09:36:47,557 INFO L146 ILogger]: Start minimizeSevpa. Operand 0 states. [2019-05-23 09:36:47,557 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-05-23 09:36:47,557 INFO L146 ILogger]: Start removeUnreachable. Operand 0 states. [2019-05-23 09:36:47,557 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-05-23 09:36:47,558 INFO L146 ILogger]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-05-23 09:36:47,558 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:36:47,558 INFO L146 ILogger]: Abstraction has 0 states and 0 transitions. [2019-05-23 09:36:47,558 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 09:36:47,558 INFO L146 ILogger]: Start isEmpty. Operand 0 states and 0 transitions. [2019-05-23 09:36:47,559 INFO L146 ILogger]: Finished isEmpty. No accepting run. [2019-05-23 09:36:47,563 INFO L146 ILogger]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-05-23 09:36:47,565 INFO L146 ILogger]: Adding new model ValueTerminatedArrayIteration01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 09:36:47 BasicIcfg [2019-05-23 09:36:47,566 INFO L146 ILogger]: ------------------------ END TraceAbstraction---------------------------- [2019-05-23 09:36:47,568 INFO L146 ILogger]: Toolchain (without parser) took 1263.69 ms. Allocated memory is still 141.0 MB. Free memory was 110.8 MB in the beginning and 68.7 MB in the end (delta: 42.1 MB). Peak memory consumption was 42.1 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:47,571 INFO L146 ILogger]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 141.0 MB. Free memory is still 111.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-05-23 09:36:47,572 INFO L146 ILogger]: Boogie Procedure Inliner took 33.48 ms. Allocated memory is still 141.0 MB. Free memory was 110.8 MB in the beginning and 108.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:47,573 INFO L146 ILogger]: Boogie Preprocessor took 19.69 ms. Allocated memory is still 141.0 MB. Free memory was 108.7 MB in the beginning and 107.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:47,574 INFO L146 ILogger]: RCFGBuilder took 282.50 ms. Allocated memory is still 141.0 MB. Free memory was 107.4 MB in the beginning and 98.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:47,575 INFO L146 ILogger]: IcfgTransformer took 60.03 ms. Allocated memory is still 141.0 MB. Free memory was 98.8 MB in the beginning and 95.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:47,576 INFO L146 ILogger]: TraceAbstraction took 863.72 ms. Allocated memory is still 141.0 MB. Free memory was 95.4 MB in the beginning and 68.7 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:47,584 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 0.20 ms. Allocated memory is still 141.0 MB. Free memory is still 111.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 33.48 ms. Allocated memory is still 141.0 MB. Free memory was 110.8 MB in the beginning and 108.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 19.69 ms. Allocated memory is still 141.0 MB. Free memory was 108.7 MB in the beginning and 107.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 282.50 ms. Allocated memory is still 141.0 MB. Free memory was 107.4 MB in the beginning and 98.8 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 7.1 GB. * IcfgTransformer took 60.03 ms. Allocated memory is still 141.0 MB. Free memory was 98.8 MB in the beginning and 95.4 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 863.72 ms. Allocated memory is still 141.0 MB. Free memory was 95.4 MB in the beginning and 68.7 MB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 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, 9 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 14 SDslu, 2 SDs, 0 SdLazy, 14 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 164 SizeOfPredicates, 5 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 11 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...