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/ArrayInit01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 09:36:42,002 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 09:36:42,004 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 09:36:42,015 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 09:36:42,016 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 09:36:42,017 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 09:36:42,018 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 09:36:42,020 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 09:36:42,022 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 09:36:42,023 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 09:36:42,024 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 09:36:42,024 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 09:36:42,025 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 09:36:42,026 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 09:36:42,028 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 09:36:42,029 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 09:36:42,029 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 09:36:42,032 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 09:36:42,034 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 09:36:42,036 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 09:36:42,037 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 09:36:42,038 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 09:36:42,041 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 09:36:42,041 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 09:36:42,041 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 09:36:42,046 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 09:36:42,047 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 09:36:42,050 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 09:36:42,051 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 09:36:42,054 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 09:36:42,055 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 09:36:42,058 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 09:36:42,059 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 09:36:42,060 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 09:36:42,060 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 09:36:42,060 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 09:36:42,061 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 09:36:42,064 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 09:36:42,065 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.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 09:36:42,115 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 09:36:42,130 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 09:36:42,137 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 09:36:42,139 INFO L146 ILogger]: Initializing Boogie PL CUP Parser... [2019-05-23 09:36:42,140 INFO L146 ILogger]: Boogie PL CUP Parser initialized [2019-05-23 09:36:42,141 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit01.bpl [2019-05-23 09:36:42,141 INFO L146 ILogger]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit01.bpl' [2019-05-23 09:36:42,179 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 09:36:42,180 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 09:36:42,181 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 09:36:42,181 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 09:36:42,182 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 09:36:42,200 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:42" (1/1) ... [2019-05-23 09:36:42,213 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:42" (1/1) ... [2019-05-23 09:36:42,220 WARN L146 ILogger]: Program contained no entry procedure! [2019-05-23 09:36:42,221 WARN L146 ILogger]: Missing entry procedures: [ULTIMATE.start] [2019-05-23 09:36:42,221 WARN L146 ILogger]: Fallback enabled. All procedures will be processed. [2019-05-23 09:36:42,223 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 09:36:42,224 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 09:36:42,224 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 09:36:42,224 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 09:36:42,237 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:42" (1/1) ... [2019-05-23 09:36:42,237 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:42" (1/1) ... [2019-05-23 09:36:42,240 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:42" (1/1) ... [2019-05-23 09:36:42,240 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:42" (1/1) ... [2019-05-23 09:36:42,244 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:42" (1/1) ... [2019-05-23 09:36:42,249 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:42" (1/1) ... [2019-05-23 09:36:42,250 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:42" (1/1) ... [2019-05-23 09:36:42,251 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 09:36:42,252 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 09:36:42,252 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 09:36:42,252 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 09:36:42,253 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:42" (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 09:36:42,326 INFO L146 ILogger]: Specification and implementation of procedure main given in one single declaration [2019-05-23 09:36:42,326 INFO L146 ILogger]: Found specification of procedure main [2019-05-23 09:36:42,327 INFO L146 ILogger]: Found implementation of procedure main [2019-05-23 09:36:42,555 INFO L146 ILogger]: Using library mode [2019-05-23 09:36:42,555 INFO L146 ILogger]: Removed 0 assume(true) statements. [2019-05-23 09:36:42,556 INFO L146 ILogger]: Adding new model ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:36:42 BoogieIcfgContainer [2019-05-23 09:36:42,557 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 09:36:42,557 INFO L146 ILogger]: ------------------------IcfgTransformer---------------------------- [2019-05-23 09:36:42,557 INFO L146 ILogger]: Initializing IcfgTransformer... [2019-05-23 09:36:42,558 INFO L146 ILogger]: IcfgTransformer initialized [2019-05-23 09:36:42,562 INFO L146 ILogger]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:36:42" (1/1) ... [2019-05-23 09:36:42,606 INFO L146 ILogger]: L30 [2019-05-23 09:36:42,606 INFO L146 ILogger]: In Formula: (= v_a_1 (store v_a_2 v_i_4 0)) InVars {a=v_a_2, i=v_i_4} OutVars{a=v_a_1, i=v_i_4} AuxVars[] AssignedVars[a] [2019-05-23 09:36:42,608 INFO L146 ILogger]: Out Formula: (and (= v_a_val_0_out_1 v_a_val_0_in_1) (or (= 0 v_a_val_0_in_1) (not (= v_i_4 v_a_idx_0_term_1))) v_a_idx_0_term_assigned_1 (or (= v_i_4 v_a_idx_0_term_1) (not v_a_idx_0_term_assigned_1))) InVars {i=v_i_4, 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_4, 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 09:36:42,608 INFO L146 ILogger]: L31 [2019-05-23 09:36:42,614 INFO L146 ILogger]: L34 [2019-05-23 09:36:42,615 INFO L146 ILogger]: In Formula: (not (= 0 (select v_a_3 v_r_2))) InVars {a=v_a_3, r=v_r_2} OutVars{a=v_a_3, r=v_r_2} AuxVars[] AssignedVars[] [2019-05-23 09:36:42,615 INFO L146 ILogger]: Out Formula: (and (not (= 0 v_v_a_3_aux_1)) (or (= v_v_a_3_aux_1 v_a_val_0_in_2) (not (= v_r_2 v_a_idx_0_term_2))) v_a_idx_0_term_assigned_1 (or (not v_a_idx_0_term_assigned_1) (= v_r_2 v_a_idx_0_term_2))) InVars {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, r=v_r_2} OutVars{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, r=v_r_2} AuxVars[v_v_a_3_aux_1] AssignedVars[] [2019-05-23 09:36:42,620 INFO L146 ILogger]: mainErr0ASSERT_VIOLATIONASSERT [2019-05-23 09:36:42,623 INFO L146 ILogger]: L34 [2019-05-23 09:36:42,623 INFO L146 ILogger]: In Formula: (= (select v_a_4 v_r_3) 0) InVars {a=v_a_4, r=v_r_3} OutVars{a=v_a_4, r=v_r_3} AuxVars[] AssignedVars[] [2019-05-23 09:36:42,624 INFO L146 ILogger]: Out Formula: (and (= 0 v_v_a_4_aux_1) (or (= v_r_3 v_a_idx_0_term_3) (not v_a_idx_0_term_assigned_1)) v_a_idx_0_term_assigned_1 (or (= v_v_a_4_aux_1 v_a_val_0_in_3) (not (= v_r_3 v_a_idx_0_term_3)))) InVars {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, r=v_r_3} OutVars{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, r=v_r_3} AuxVars[v_v_a_4_aux_1] AssignedVars[] [2019-05-23 09:36:42,624 INFO L146 ILogger]: mainFINAL [2019-05-23 09:36:42,634 INFO L146 ILogger]: Adding new model ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 09:36:42 BasicIcfg [2019-05-23 09:36:42,634 INFO L146 ILogger]: ------------------------ END IcfgTransformer---------------------------- [2019-05-23 09:36:42,636 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 09:36:42,636 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 09:36:42,639 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 09:36:42,639 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:42" (1/3) ... [2019-05-23 09:36:42,641 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb5128b and model type ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 09:36:42, skipping insertion in model container [2019-05-23 09:36:42,641 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:36:42" (2/3) ... [2019-05-23 09:36:42,641 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cb5128b and model type ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 09:36:42, skipping insertion in model container [2019-05-23 09:36:42,641 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 09:36:42" (3/3) ... [2019-05-23 09:36:42,643 INFO L146 ILogger]: Analyzing ICFG ArrayInit01.bplME [2019-05-23 09:36:42,667 INFO L146 ILogger]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-05-23 09:36:42,676 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 09:36:42,694 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 09:36:42,718 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 09:36:42,719 INFO L146 ILogger]: Interprodecural is true [2019-05-23 09:36:42,719 INFO L146 ILogger]: Hoare is false [2019-05-23 09:36:42,719 INFO L146 ILogger]: Compute interpolants for ForwardPredicates [2019-05-23 09:36:42,720 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 09:36:42,720 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 09:36:42,720 INFO L146 ILogger]: Difference is false [2019-05-23 09:36:42,720 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 09:36:42,720 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 09:36:42,735 INFO L146 ILogger]: Start isEmpty. Operand 10 states. [2019-05-23 09:36:42,743 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 6 [2019-05-23 09:36:42,744 INFO L146 ILogger]: Found error trace [2019-05-23 09:36:42,745 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1] [2019-05-23 09:36:42,745 INFO L146 ILogger]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:36:42,750 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:36:42,750 INFO L146 ILogger]: Analyzing trace with hash 42022257, now seen corresponding path program 1 times [2019-05-23 09:36:42,792 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:36:42,829 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:36:42,833 INFO L146 ILogger]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 09:36:42,838 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:36:42,970 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 09:36:42,973 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 09:36:42,973 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 09:36:42,978 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 09:36:43,005 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 09:36:43,008 INFO L146 ILogger]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-05-23 09:36:43,012 INFO L146 ILogger]: Start difference. First operand 10 states. Second operand 4 states. [2019-05-23 09:36:43,167 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:36:43,168 INFO L146 ILogger]: Finished difference Result 14 states and 14 transitions. [2019-05-23 09:36:43,169 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 09:36:43,170 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 5 [2019-05-23 09:36:43,170 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:36:43,180 INFO L146 ILogger]: With dead ends: 14 [2019-05-23 09:36:43,181 INFO L146 ILogger]: Without dead ends: 11 [2019-05-23 09:36:43,183 INFO L146 ILogger]: 0 DeclaredPredicates, 5 GetRequests, 2 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 09:36:43,202 INFO L146 ILogger]: Start minimizeSevpa. Operand 11 states. [2019-05-23 09:36:43,215 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-05-23 09:36:43,216 INFO L146 ILogger]: Start removeUnreachable. Operand 9 states. [2019-05-23 09:36:43,217 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-05-23 09:36:43,218 INFO L146 ILogger]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-05-23 09:36:43,219 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:36:43,219 INFO L146 ILogger]: Abstraction has 9 states and 9 transitions. [2019-05-23 09:36:43,219 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 09:36:43,219 INFO L146 ILogger]: Start isEmpty. Operand 9 states and 9 transitions. [2019-05-23 09:36:43,220 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 9 [2019-05-23 09:36:43,220 INFO L146 ILogger]: Found error trace [2019-05-23 09:36:43,220 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 09:36:43,221 INFO L146 ILogger]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:36:43,221 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:36:43,221 INFO L146 ILogger]: Analyzing trace with hash 2020009635, now seen corresponding path program 1 times [2019-05-23 09:36:43,222 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:36:43,235 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:36:43,237 INFO L146 ILogger]: Trace formula consists of 21 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 09:36:43,238 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:36:43,358 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 09:36:43,358 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 09:36:43,359 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 09:36:43,360 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 09:36:43,361 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 09:36:43,361 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 09:36:43,361 INFO L146 ILogger]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2019-05-23 09:36:43,389 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:36:43,390 INFO L146 ILogger]: Finished difference Result 9 states and 9 transitions. [2019-05-23 09:36:43,390 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 09:36:43,391 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 8 [2019-05-23 09:36:43,391 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:36:43,391 INFO L146 ILogger]: With dead ends: 9 [2019-05-23 09:36:43,391 INFO L146 ILogger]: Without dead ends: 0 [2019-05-23 09:36:43,392 INFO L146 ILogger]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 09:36:43,393 INFO L146 ILogger]: Start minimizeSevpa. Operand 0 states. [2019-05-23 09:36:43,393 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-05-23 09:36:43,393 INFO L146 ILogger]: Start removeUnreachable. Operand 0 states. [2019-05-23 09:36:43,393 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-05-23 09:36:43,394 INFO L146 ILogger]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-05-23 09:36:43,394 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:36:43,394 INFO L146 ILogger]: Abstraction has 0 states and 0 transitions. [2019-05-23 09:36:43,394 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 09:36:43,394 INFO L146 ILogger]: Start isEmpty. Operand 0 states and 0 transitions. [2019-05-23 09:36:43,395 INFO L146 ILogger]: Finished isEmpty. No accepting run. [2019-05-23 09:36:43,398 INFO L146 ILogger]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-05-23 09:36:43,400 INFO L146 ILogger]: Adding new model ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 09:36:43 BasicIcfg [2019-05-23 09:36:43,400 INFO L146 ILogger]: ------------------------ END TraceAbstraction---------------------------- [2019-05-23 09:36:43,402 INFO L146 ILogger]: Toolchain (without parser) took 1221.13 ms. Allocated memory is still 136.3 MB. Free memory was 108.7 MB in the beginning and 65.8 MB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,403 INFO L146 ILogger]: Boogie PL CUP Parser took 0.55 ms. Allocated memory is still 136.3 MB. Free memory is still 109.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-05-23 09:36:43,404 INFO L146 ILogger]: Boogie Procedure Inliner took 42.21 ms. Allocated memory is still 136.3 MB. Free memory was 108.7 MB in the beginning and 106.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,406 INFO L146 ILogger]: Boogie Preprocessor took 27.24 ms. Allocated memory is still 136.3 MB. Free memory was 106.6 MB in the beginning and 105.7 MB in the end (delta: 909.9 kB). Peak memory consumption was 909.9 kB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,407 INFO L146 ILogger]: RCFGBuilder took 304.87 ms. Allocated memory is still 136.3 MB. Free memory was 105.3 MB in the beginning and 96.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,408 INFO L146 ILogger]: IcfgTransformer took 77.30 ms. Allocated memory is still 136.3 MB. Free memory was 96.1 MB in the beginning and 93.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,409 INFO L146 ILogger]: TraceAbstraction took 764.41 ms. Allocated memory is still 136.3 MB. Free memory was 92.7 MB in the beginning and 65.8 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,413 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 0.55 ms. Allocated memory is still 136.3 MB. Free memory is still 109.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 42.21 ms. Allocated memory is still 136.3 MB. Free memory was 108.7 MB in the beginning and 106.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.24 ms. Allocated memory is still 136.3 MB. Free memory was 106.6 MB in the beginning and 105.7 MB in the end (delta: 909.9 kB). Peak memory consumption was 909.9 kB. Max. memory is 7.1 GB. * RCFGBuilder took 304.87 ms. Allocated memory is still 136.3 MB. Free memory was 105.3 MB in the beginning and 96.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * IcfgTransformer took 77.30 ms. Allocated memory is still 136.3 MB. Free memory was 96.1 MB in the beginning and 93.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 764.41 ms. Allocated memory is still 136.3 MB. Free memory was 92.7 MB in the beginning and 65.8 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 34]: 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, 10 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 4 SDslu, 11 SDs, 0 SdLazy, 23 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 201 SizeOfPredicates, 4 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 12 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...