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/20170304-DifficultPathPrograms/array1.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 09:36:41,805 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 09:36:41,807 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 09:36:41,828 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 09:36:41,828 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 09:36:41,829 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 09:36:41,833 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 09:36:41,836 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 09:36:41,838 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 09:36:41,840 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 09:36:41,841 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 09:36:41,841 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 09:36:41,843 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 09:36:41,846 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 09:36:41,853 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 09:36:41,854 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 09:36:41,855 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 09:36:41,859 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 09:36:41,866 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 09:36:41,871 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 09:36:41,873 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 09:36:41,874 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 09:36:41,879 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 09:36:41,879 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 09:36:41,879 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 09:36:41,883 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 09:36:41,883 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 09:36:41,885 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 09:36:41,885 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 09:36:41,886 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 09:36:41,887 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 09:36:41,887 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 09:36:41,889 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 09:36:41,889 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 09:36:41,890 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 09:36:41,890 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 09:36:41,890 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 09:36:41,891 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 09:36:41,892 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 09:36:41,925 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 09:36:41,938 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 09:36:41,942 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 09:36:41,943 INFO L146 ILogger]: Initializing Boogie PL CUP Parser... [2019-05-23 09:36:41,944 INFO L146 ILogger]: Boogie PL CUP Parser initialized [2019-05-23 09:36:41,945 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/array1.i_3.bpl [2019-05-23 09:36:41,945 INFO L146 ILogger]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/array1.i_3.bpl' [2019-05-23 09:36:41,983 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 09:36:41,985 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 09:36:41,986 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 09:36:41,986 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 09:36:41,986 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 09:36:42,003 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:41" (1/1) ... [2019-05-23 09:36:42,014 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:41" (1/1) ... [2019-05-23 09:36:42,022 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 09:36:42,023 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 09:36:42,023 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 09:36:42,023 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 09:36:42,034 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:41" (1/1) ... [2019-05-23 09:36:42,035 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:41" (1/1) ... [2019-05-23 09:36:42,036 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:41" (1/1) ... [2019-05-23 09:36:42,036 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:41" (1/1) ... [2019-05-23 09:36:42,039 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:41" (1/1) ... [2019-05-23 09:36:42,041 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:41" (1/1) ... [2019-05-23 09:36:42,042 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:41" (1/1) ... [2019-05-23 09:36:42,043 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 09:36:42,044 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 09:36:42,044 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 09:36:42,044 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 09:36:42,045 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:41" (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 09:36:42,116 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 09:36:42,117 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 09:36:42,511 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 09:36:42,511 INFO L146 ILogger]: Removed 1 assume(true) statements. [2019-05-23 09:36:42,512 INFO L146 ILogger]: Adding new model array1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:36:42 BoogieIcfgContainer [2019-05-23 09:36:42,513 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 09:36:42,513 INFO L146 ILogger]: ------------------------IcfgTransformer---------------------------- [2019-05-23 09:36:42,513 INFO L146 ILogger]: Initializing IcfgTransformer... [2019-05-23 09:36:42,515 INFO L146 ILogger]: IcfgTransformer initialized [2019-05-23 09:36:42,519 INFO L146 ILogger]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:36:42" (1/1) ... [2019-05-23 09:36:42,582 INFO L146 ILogger]: L23 [2019-05-23 09:36:42,583 INFO L146 ILogger]: In Formula: (= |v_ULTIMATE.start___VERIFIER_assert_#in~cond_1| (ite (not (= 1023 (select v_ULTIMATE.start_main_~A~4_3 1023))) 1 0)) InVars {ULTIMATE.start_main_~A~4=v_ULTIMATE.start_main_~A~4_3} OutVars{ULTIMATE.start___VERIFIER_assert_#in~cond=|v_ULTIMATE.start___VERIFIER_assert_#in~cond_1|, ULTIMATE.start_main_~A~4=v_ULTIMATE.start_main_~A~4_3} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_#in~cond] [2019-05-23 09:36:42,583 INFO L146 ILogger]: Out Formula: (and (or (= 1023 v_ULTIMATE.start_main_~A~4_idx_0_term_1) (not v_ULTIMATE.start_main_~A~4_idx_0_term_assigned_1)) (or (not (= 1023 v_ULTIMATE.start_main_~A~4_idx_0_term_1)) (= v_ULTIMATE.start_main_~A~4_val_0_in_1 v_v_ULTIMATE.start_main_~A~4_3_aux_1)) (= |v_ULTIMATE.start___VERIFIER_assert_#in~cond_1| (ite (not (= v_v_ULTIMATE.start_main_~A~4_3_aux_1 1023)) 1 0)) v_ULTIMATE.start_main_~A~4_idx_0_term_assigned_1) InVars {ULTIMATE.start_main_~A~4_idx_0=v_ULTIMATE.start_main_~A~4_idx_0_term_1, ULTIMATE.start_main_~A~4_idx_0_bool=v_ULTIMATE.start_main_~A~4_idx_0_term_assigned_1, ULTIMATE.start_main_~A~4_val_0=v_ULTIMATE.start_main_~A~4_val_0_in_1} OutVars{ULTIMATE.start_main_~A~4_idx_0=v_ULTIMATE.start_main_~A~4_idx_0_term_1, ULTIMATE.start_main_~A~4_idx_0_bool=v_ULTIMATE.start_main_~A~4_idx_0_term_assigned_1, ULTIMATE.start_main_~A~4_val_0=v_ULTIMATE.start_main_~A~4_val_0_in_1, ULTIMATE.start___VERIFIER_assert_#in~cond=|v_ULTIMATE.start___VERIFIER_assert_#in~cond_1|} AuxVars[v_v_ULTIMATE.start_main_~A~4_3_aux_1] AssignedVars[ULTIMATE.start___VERIFIER_assert_#in~cond] [2019-05-23 09:36:42,587 INFO L146 ILogger]: L24 [2019-05-23 09:36:42,592 INFO L146 ILogger]: L31 [2019-05-23 09:36:42,593 INFO L146 ILogger]: In Formula: (= v_ULTIMATE.start_main_~A~4_4 (store v_ULTIMATE.start_main_~A~4_5 v_ULTIMATE.start_main_~i~4_6 v_ULTIMATE.start_main_~i~4_6)) InVars {ULTIMATE.start_main_~A~4=v_ULTIMATE.start_main_~A~4_5, ULTIMATE.start_main_~i~4=v_ULTIMATE.start_main_~i~4_6} OutVars{ULTIMATE.start_main_~A~4=v_ULTIMATE.start_main_~A~4_4, ULTIMATE.start_main_~i~4=v_ULTIMATE.start_main_~i~4_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~A~4] [2019-05-23 09:36:42,593 INFO L146 ILogger]: Out Formula: (and (= v_ULTIMATE.start_main_~A~4_val_0_out_1 v_ULTIMATE.start_main_~A~4_val_0_in_2) (or (= v_ULTIMATE.start_main_~A~4_idx_0_term_2 v_ULTIMATE.start_main_~i~4_6) (not v_ULTIMATE.start_main_~A~4_idx_0_term_assigned_1)) (or (= v_ULTIMATE.start_main_~A~4_val_0_in_2 v_ULTIMATE.start_main_~i~4_6) (not (= v_ULTIMATE.start_main_~A~4_idx_0_term_2 v_ULTIMATE.start_main_~i~4_6))) v_ULTIMATE.start_main_~A~4_idx_0_term_assigned_1) InVars {ULTIMATE.start_main_~A~4_idx_0=v_ULTIMATE.start_main_~A~4_idx_0_term_2, ULTIMATE.start_main_~A~4_idx_0_bool=v_ULTIMATE.start_main_~A~4_idx_0_term_assigned_1, ULTIMATE.start_main_~A~4_val_0=v_ULTIMATE.start_main_~A~4_val_0_in_2, ULTIMATE.start_main_~i~4=v_ULTIMATE.start_main_~i~4_6} OutVars{ULTIMATE.start_main_~A~4_idx_0=v_ULTIMATE.start_main_~A~4_idx_0_term_2, ULTIMATE.start_main_~A~4_idx_0_bool=v_ULTIMATE.start_main_~A~4_idx_0_term_assigned_1, ULTIMATE.start_main_~A~4_val_0=v_ULTIMATE.start_main_~A~4_val_0_out_1, ULTIMATE.start_main_~i~4=v_ULTIMATE.start_main_~i~4_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~A~4_val_0] [2019-05-23 09:36:42,593 INFO L146 ILogger]: L32 [2019-05-23 09:36:42,618 INFO L146 ILogger]: Adding new model array1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 09:36:42 BasicIcfg [2019-05-23 09:36:42,619 INFO L146 ILogger]: ------------------------ END IcfgTransformer---------------------------- [2019-05-23 09:36:42,624 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 09:36:42,627 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 09:36:42,634 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 09:36:42,634 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 09:36:41" (1/3) ... [2019-05-23 09:36:42,635 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7235394c and model type array1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 09:36:42, skipping insertion in model container [2019-05-23 09:36:42,639 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 09:36:42" (2/3) ... [2019-05-23 09:36:42,639 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7235394c and model type array1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 09:36:42, skipping insertion in model container [2019-05-23 09:36:42,640 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 09:36:42" (3/3) ... [2019-05-23 09:36:42,645 INFO L146 ILogger]: Analyzing ICFG array1.i_3.bplME [2019-05-23 09:36:42,664 INFO L146 ILogger]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-05-23 09:36:42,682 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 09:36:42,700 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 09:36:42,723 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 09:36:42,723 INFO L146 ILogger]: Interprodecural is true [2019-05-23 09:36:42,724 INFO L146 ILogger]: Hoare is false [2019-05-23 09:36:42,724 INFO L146 ILogger]: Compute interpolants for ForwardPredicates [2019-05-23 09:36:42,724 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 09:36:42,724 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 09:36:42,725 INFO L146 ILogger]: Difference is false [2019-05-23 09:36:42,725 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 09:36:42,725 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 09:36:42,740 INFO L146 ILogger]: Start isEmpty. Operand 19 states. [2019-05-23 09:36:42,749 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 13 [2019-05-23 09:36:42,749 INFO L146 ILogger]: Found error trace [2019-05-23 09:36:42,750 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 09:36:42,753 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:36:42,759 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:36:42,760 INFO L146 ILogger]: Analyzing trace with hash -111570519, now seen corresponding path program 1 times [2019-05-23 09:36:42,817 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:36:42,854 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:36:42,858 INFO L146 ILogger]: Trace formula consists of 21 conjuncts, 2 conjunts are in the unsatisfiable core [2019-05-23 09:36:42,863 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:36:42,936 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 09:36:42,939 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 09:36:42,940 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 09:36:42,945 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 09:36:42,959 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 09:36:42,960 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 09:36:42,963 INFO L146 ILogger]: Start difference. First operand 19 states. Second operand 3 states. [2019-05-23 09:36:43,036 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:36:43,036 INFO L146 ILogger]: Finished difference Result 21 states and 21 transitions. [2019-05-23 09:36:43,037 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 09:36:43,038 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 12 [2019-05-23 09:36:43,039 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:36:43,048 INFO L146 ILogger]: With dead ends: 21 [2019-05-23 09:36:43,048 INFO L146 ILogger]: Without dead ends: 21 [2019-05-23 09:36:43,050 INFO L146 ILogger]: 0 DeclaredPredicates, 11 GetRequests, 10 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 09:36:43,068 INFO L146 ILogger]: Start minimizeSevpa. Operand 21 states. [2019-05-23 09:36:43,082 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 21 to 18. [2019-05-23 09:36:43,083 INFO L146 ILogger]: Start removeUnreachable. Operand 18 states. [2019-05-23 09:36:43,084 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-05-23 09:36:43,086 INFO L146 ILogger]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 12 [2019-05-23 09:36:43,086 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:36:43,087 INFO L146 ILogger]: Abstraction has 18 states and 18 transitions. [2019-05-23 09:36:43,087 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 09:36:43,087 INFO L146 ILogger]: Start isEmpty. Operand 18 states and 18 transitions. [2019-05-23 09:36:43,088 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 18 [2019-05-23 09:36:43,088 INFO L146 ILogger]: Found error trace [2019-05-23 09:36:43,088 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 09:36:43,089 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 09:36:43,089 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 09:36:43,089 INFO L146 ILogger]: Analyzing trace with hash -201877734, now seen corresponding path program 1 times [2019-05-23 09:36:43,090 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 09:36:43,111 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 09:36:43,115 INFO L146 ILogger]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 09:36:43,118 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 09:36:43,223 INFO L146 ILogger]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 09:36:43,223 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 09:36:43,224 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-05-23 09:36:43,225 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 09:36:43,226 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 09:36:43,226 INFO L146 ILogger]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-05-23 09:36:43,227 INFO L146 ILogger]: Start difference. First operand 18 states and 18 transitions. Second operand 4 states. [2019-05-23 09:36:43,329 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 09:36:43,329 INFO L146 ILogger]: Finished difference Result 13 states and 13 transitions. [2019-05-23 09:36:43,330 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 09:36:43,330 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 17 [2019-05-23 09:36:43,330 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 09:36:43,331 INFO L146 ILogger]: With dead ends: 13 [2019-05-23 09:36:43,331 INFO L146 ILogger]: Without dead ends: 0 [2019-05-23 09:36:43,332 INFO L146 ILogger]: 0 DeclaredPredicates, 17 GetRequests, 14 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 09:36:43,332 INFO L146 ILogger]: Start minimizeSevpa. Operand 0 states. [2019-05-23 09:36:43,333 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-05-23 09:36:43,333 INFO L146 ILogger]: Start removeUnreachable. Operand 0 states. [2019-05-23 09:36:43,333 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-05-23 09:36:43,334 INFO L146 ILogger]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-05-23 09:36:43,334 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 09:36:43,334 INFO L146 ILogger]: Abstraction has 0 states and 0 transitions. [2019-05-23 09:36:43,334 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 09:36:43,334 INFO L146 ILogger]: Start isEmpty. Operand 0 states and 0 transitions. [2019-05-23 09:36:43,335 INFO L146 ILogger]: Finished isEmpty. No accepting run. [2019-05-23 09:36:43,340 INFO L146 ILogger]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-05-23 09:36:43,343 INFO L146 ILogger]: Adding new model array1.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 09:36:43 BasicIcfg [2019-05-23 09:36:43,343 INFO L146 ILogger]: ------------------------ END TraceAbstraction---------------------------- [2019-05-23 09:36:43,346 INFO L146 ILogger]: Toolchain (without parser) took 1359.77 ms. Allocated memory is still 141.0 MB. Free memory was 109.5 MB in the beginning and 63.9 MB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,347 INFO L146 ILogger]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 110.8 MB in the beginning and 110.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,348 INFO L146 ILogger]: Boogie Procedure Inliner took 36.61 ms. Allocated memory is still 141.0 MB. Free memory was 109.3 MB in the beginning and 107.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,349 INFO L146 ILogger]: Boogie Preprocessor took 20.57 ms. Allocated memory is still 141.0 MB. Free memory was 107.6 MB in the beginning and 106.7 MB in the end (delta: 900.3 kB). Peak memory consumption was 900.3 kB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,350 INFO L146 ILogger]: RCFGBuilder took 469.01 ms. Allocated memory is still 141.0 MB. Free memory was 106.5 MB in the beginning and 96.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,351 INFO L146 ILogger]: IcfgTransformer took 108.47 ms. Allocated memory is still 141.0 MB. Free memory was 96.9 MB in the beginning and 94.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,353 INFO L146 ILogger]: TraceAbstraction took 719.85 ms. Allocated memory is still 141.0 MB. Free memory was 93.9 MB in the beginning and 63.9 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2019-05-23 09:36:43,358 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 0.23 ms. Allocated memory is still 141.0 MB. Free memory was 110.8 MB in the beginning and 110.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.61 ms. Allocated memory is still 141.0 MB. Free memory was 109.3 MB in the beginning and 107.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.57 ms. Allocated memory is still 141.0 MB. Free memory was 107.6 MB in the beginning and 106.7 MB in the end (delta: 900.3 kB). Peak memory consumption was 900.3 kB. Max. memory is 7.1 GB. * RCFGBuilder took 469.01 ms. Allocated memory is still 141.0 MB. Free memory was 106.5 MB in the beginning and 96.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * IcfgTransformer took 108.47 ms. Allocated memory is still 141.0 MB. Free memory was 96.9 MB in the beginning and 94.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 719.85 ms. Allocated memory is still 141.0 MB. Free memory was 93.9 MB in the beginning and 63.9 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 37]: 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, 19 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 7 SDslu, 17 SDs, 0 SdLazy, 22 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 783 SizeOfPredicates, 4 NumberOfNonLiveVariables, 53 ConjunctsInSsa, 6 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...