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 2 -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 10:02:40,647 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 10:02:40,649 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 10:02:40,661 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 10:02:40,662 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 10:02:40,663 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 10:02:40,664 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 10:02:40,666 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 10:02:40,668 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 10:02:40,669 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 10:02:40,670 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 10:02:40,670 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 10:02:40,671 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 10:02:40,672 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 10:02:40,673 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 10:02:40,674 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 10:02:40,675 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 10:02:40,677 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 10:02:40,680 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 10:02:40,681 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 10:02:40,683 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 10:02:40,684 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 10:02:40,687 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 10:02:40,687 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 10:02:40,687 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 10:02:40,688 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 10:02:40,689 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 10:02:40,690 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 10:02:40,690 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 10:02:40,694 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 10:02:40,695 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 10:02:40,696 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 10:02:40,697 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 10:02:40,697 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 10:02:40,698 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 10:02:40,698 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 10:02:40,699 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 10:02:40,701 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 10:02:40,702 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 -> 2 [2019-05-23 10:02:40,756 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 10:02:40,772 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 10:02:40,778 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 10:02:40,779 INFO L146 ILogger]: Initializing Boogie PL CUP Parser... [2019-05-23 10:02:40,780 INFO L146 ILogger]: Boogie PL CUP Parser initialized [2019-05-23 10:02:40,781 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 10:02:40,781 INFO L146 ILogger]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/ArrayInit01.bpl' [2019-05-23 10:02:40,819 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 10:02:40,821 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 10:02:40,822 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 10:02:40,822 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 10:02:40,822 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 10:02:40,840 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 10:02:40" (1/1) ... [2019-05-23 10:02:40,851 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 10:02:40" (1/1) ... [2019-05-23 10:02:40,858 WARN L146 ILogger]: Program contained no entry procedure! [2019-05-23 10:02:40,859 WARN L146 ILogger]: Missing entry procedures: [ULTIMATE.start] [2019-05-23 10:02:40,859 WARN L146 ILogger]: Fallback enabled. All procedures will be processed. [2019-05-23 10:02:40,861 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 10:02:40,862 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 10:02:40,863 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 10:02:40,863 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 10:02:40,878 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:40" (1/1) ... [2019-05-23 10:02:40,880 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:40" (1/1) ... [2019-05-23 10:02:40,881 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:40" (1/1) ... [2019-05-23 10:02:40,882 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:40" (1/1) ... [2019-05-23 10:02:40,885 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:40" (1/1) ... [2019-05-23 10:02:40,890 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:40" (1/1) ... [2019-05-23 10:02:40,891 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:40" (1/1) ... [2019-05-23 10:02:40,893 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 10:02:40,894 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 10:02:40,894 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 10:02:40,894 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 10:02:40,895 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:40" (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 10:02:40,966 INFO L146 ILogger]: Specification and implementation of procedure main given in one single declaration [2019-05-23 10:02:40,966 INFO L146 ILogger]: Found specification of procedure main [2019-05-23 10:02:40,967 INFO L146 ILogger]: Found implementation of procedure main [2019-05-23 10:02:41,153 INFO L146 ILogger]: Using library mode [2019-05-23 10:02:41,154 INFO L146 ILogger]: Removed 0 assume(true) statements. [2019-05-23 10:02:41,155 INFO L146 ILogger]: Adding new model ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 10:02:41 BoogieIcfgContainer [2019-05-23 10:02:41,155 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 10:02:41,156 INFO L146 ILogger]: ------------------------IcfgTransformer---------------------------- [2019-05-23 10:02:41,156 INFO L146 ILogger]: Initializing IcfgTransformer... [2019-05-23 10:02:41,157 INFO L146 ILogger]: IcfgTransformer initialized [2019-05-23 10:02:41,161 INFO L146 ILogger]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 10:02:41" (1/1) ... [2019-05-23 10:02:41,193 INFO L146 ILogger]: L30 [2019-05-23 10:02:41,194 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 10:02:41,194 INFO L146 ILogger]: Out Formula: (and (or (not v_a_idx_1_term_assigned_1) (= v_a_idx_1_term_1 v_i_4)) v_a_idx_1_term_assigned_1 (= v_a_val_0_out_1 v_a_val_0_in_1) (= v_a_val_1_out_1 v_a_val_1_in_1) (or (= 0 v_a_val_0_in_1) (not (= v_i_4 v_a_idx_0_term_1))) (or (not (= v_i_4 v_a_idx_0_term_1)) (= 0 v_a_val_1_in_1)) (or (not (= v_a_idx_1_term_1 v_i_4)) (= 0 v_a_val_1_in_1)) v_a_idx_0_term_assigned_1 (or (= 0 v_a_val_0_in_1) (not (= v_a_idx_1_term_1 v_i_4))) (or (= v_i_4 v_a_idx_0_term_1) (not v_a_idx_0_term_assigned_1))) InVars {a_idx_1_bool=v_a_idx_1_term_assigned_1, a_idx_0=v_a_idx_0_term_1, i=v_i_4, a_idx_1=v_a_idx_1_term_1, a_val_0=v_a_val_0_in_1, a_idx_0_bool=v_a_idx_0_term_assigned_1, a_val_1=v_a_val_1_in_1} OutVars{a_idx_1_bool=v_a_idx_1_term_assigned_1, a_idx_0=v_a_idx_0_term_1, i=v_i_4, a_idx_1=v_a_idx_1_term_1, a_val_0=v_a_val_0_out_1, a_idx_0_bool=v_a_idx_0_term_assigned_1, a_val_1=v_a_val_1_out_1} AuxVars[] AssignedVars[a_val_0, a_val_1] [2019-05-23 10:02:41,194 INFO L146 ILogger]: L31 [2019-05-23 10:02:41,200 INFO L146 ILogger]: L34 [2019-05-23 10:02:41,200 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 10:02:41,200 INFO L146 ILogger]: Out Formula: (and (or (= v_v_a_3_aux_1 v_a_val_1_in_2) (not (= v_a_idx_1_term_2 v_r_2))) v_a_idx_1_term_assigned_1 (or (= v_v_a_3_aux_1 v_a_val_0_in_2) (not (= v_a_idx_1_term_2 v_r_2))) (or (= v_a_idx_1_term_2 v_r_2) (not v_a_idx_1_term_assigned_1)) (or (= v_v_a_3_aux_1 v_a_val_1_in_2) (not (= v_r_2 v_a_idx_0_term_2))) (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_idx_1_bool=v_a_idx_1_term_assigned_1, a_idx_0=v_a_idx_0_term_2, a_idx_1=v_a_idx_1_term_2, a_val_0=v_a_val_0_in_2, a_idx_0_bool=v_a_idx_0_term_assigned_1, a_val_1=v_a_val_1_in_2, r=v_r_2} OutVars{a_idx_1_bool=v_a_idx_1_term_assigned_1, a_idx_0=v_a_idx_0_term_2, a_idx_1=v_a_idx_1_term_2, a_val_0=v_a_val_0_in_2, a_idx_0_bool=v_a_idx_0_term_assigned_1, a_val_1=v_a_val_1_in_2, r=v_r_2} AuxVars[v_v_a_3_aux_1] AssignedVars[] [2019-05-23 10:02:41,203 INFO L146 ILogger]: mainErr0ASSERT_VIOLATIONASSERT [2019-05-23 10:02:41,205 INFO L146 ILogger]: L34 [2019-05-23 10:02:41,206 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 10:02:41,206 INFO L146 ILogger]: Out Formula: (and (= 0 v_v_a_4_aux_1) (or (not (= v_r_3 v_a_idx_0_term_3)) (= v_v_a_4_aux_1 v_a_val_1_in_3)) v_a_idx_1_term_assigned_1 (or (= v_r_3 v_a_idx_0_term_3) (not v_a_idx_0_term_assigned_1)) (or (= v_v_a_4_aux_1 v_a_val_0_in_3) (not (= v_a_idx_1_term_3 v_r_3))) v_a_idx_0_term_assigned_1 (or (not (= v_a_idx_1_term_3 v_r_3)) (= v_v_a_4_aux_1 v_a_val_1_in_3)) (or (= v_v_a_4_aux_1 v_a_val_0_in_3) (not (= v_r_3 v_a_idx_0_term_3))) (or (= v_a_idx_1_term_3 v_r_3) (not v_a_idx_1_term_assigned_1))) InVars {a_idx_1_bool=v_a_idx_1_term_assigned_1, a_idx_0=v_a_idx_0_term_3, a_idx_1=v_a_idx_1_term_3, a_val_0=v_a_val_0_in_3, a_idx_0_bool=v_a_idx_0_term_assigned_1, a_val_1=v_a_val_1_in_3, r=v_r_3} OutVars{a_idx_1_bool=v_a_idx_1_term_assigned_1, a_idx_0=v_a_idx_0_term_3, a_idx_1=v_a_idx_1_term_3, a_val_0=v_a_val_0_in_3, a_idx_0_bool=v_a_idx_0_term_assigned_1, a_val_1=v_a_val_1_in_3, r=v_r_3} AuxVars[v_v_a_4_aux_1] AssignedVars[] [2019-05-23 10:02:41,206 INFO L146 ILogger]: mainFINAL [2019-05-23 10:02:41,214 INFO L146 ILogger]: Adding new model ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 10:02:41 BasicIcfg [2019-05-23 10:02:41,214 INFO L146 ILogger]: ------------------------ END IcfgTransformer---------------------------- [2019-05-23 10:02:41,216 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 10:02:41,216 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 10:02:41,221 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 10:02:41,222 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:40" (1/3) ... [2019-05-23 10:02:41,223 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a067769 and model type ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 10:02:41, skipping insertion in model container [2019-05-23 10:02:41,223 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 10:02:41" (2/3) ... [2019-05-23 10:02:41,223 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a067769 and model type ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 10:02:41, skipping insertion in model container [2019-05-23 10:02:41,224 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 10:02:41" (3/3) ... [2019-05-23 10:02:41,225 INFO L146 ILogger]: Analyzing ICFG ArrayInit01.bplME [2019-05-23 10:02:41,244 INFO L146 ILogger]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-05-23 10:02:41,251 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 10:02:41,265 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 10:02:41,287 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 10:02:41,287 INFO L146 ILogger]: Interprodecural is true [2019-05-23 10:02:41,288 INFO L146 ILogger]: Hoare is false [2019-05-23 10:02:41,288 INFO L146 ILogger]: Compute interpolants for ForwardPredicates [2019-05-23 10:02:41,288 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 10:02:41,288 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 10:02:41,288 INFO L146 ILogger]: Difference is false [2019-05-23 10:02:41,288 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 10:02:41,289 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 10:02:41,304 INFO L146 ILogger]: Start isEmpty. Operand 10 states. [2019-05-23 10:02:41,312 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 6 [2019-05-23 10:02:41,313 INFO L146 ILogger]: Found error trace [2019-05-23 10:02:41,314 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1] [2019-05-23 10:02:41,314 INFO L146 ILogger]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 10:02:41,320 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 10:02:41,320 INFO L146 ILogger]: Analyzing trace with hash 42022257, now seen corresponding path program 1 times [2019-05-23 10:02:41,370 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 10:02:41,408 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 10:02:41,412 INFO L146 ILogger]: Trace formula consists of 18 conjuncts, 4 conjunts are in the unsatisfiable core [2019-05-23 10:02:41,417 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 10:02:41,574 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 10:02:41,577 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 10:02:41,577 INFO L146 ILogger]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-05-23 10:02:41,583 INFO L146 ILogger]: Interpolant automaton has 4 states [2019-05-23 10:02:41,594 INFO L146 ILogger]: Constructing interpolant automaton starting with 4 interpolants. [2019-05-23 10:02:41,595 INFO L146 ILogger]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-05-23 10:02:41,598 INFO L146 ILogger]: Start difference. First operand 10 states. Second operand 4 states. [2019-05-23 10:02:41,735 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 10:02:41,735 INFO L146 ILogger]: Finished difference Result 14 states and 14 transitions. [2019-05-23 10:02:41,735 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-05-23 10:02:41,737 INFO L146 ILogger]: Start accepts. Automaton has 4 states. Word has length 5 [2019-05-23 10:02:41,737 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 10:02:41,745 INFO L146 ILogger]: With dead ends: 14 [2019-05-23 10:02:41,746 INFO L146 ILogger]: Without dead ends: 11 [2019-05-23 10:02:41,748 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 10:02:41,766 INFO L146 ILogger]: Start minimizeSevpa. Operand 11 states. [2019-05-23 10:02:41,779 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 11 to 9. [2019-05-23 10:02:41,781 INFO L146 ILogger]: Start removeUnreachable. Operand 9 states. [2019-05-23 10:02:41,781 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-05-23 10:02:41,783 INFO L146 ILogger]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2019-05-23 10:02:41,783 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 10:02:41,783 INFO L146 ILogger]: Abstraction has 9 states and 9 transitions. [2019-05-23 10:02:41,783 INFO L146 ILogger]: Interpolant automaton has 4 states. [2019-05-23 10:02:41,784 INFO L146 ILogger]: Start isEmpty. Operand 9 states and 9 transitions. [2019-05-23 10:02:41,784 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 9 [2019-05-23 10:02:41,784 INFO L146 ILogger]: Found error trace [2019-05-23 10:02:41,785 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 10:02:41,785 INFO L146 ILogger]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 10:02:41,785 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 10:02:41,786 INFO L146 ILogger]: Analyzing trace with hash 2020009635, now seen corresponding path program 1 times [2019-05-23 10:02:41,787 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 10:02:41,804 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 10:02:41,807 INFO L146 ILogger]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2019-05-23 10:02:41,808 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 10:02:41,899 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 10:02:41,899 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 10:02:41,900 INFO L146 ILogger]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-05-23 10:02:41,901 INFO L146 ILogger]: Interpolant automaton has 3 states [2019-05-23 10:02:41,902 INFO L146 ILogger]: Constructing interpolant automaton starting with 3 interpolants. [2019-05-23 10:02:41,902 INFO L146 ILogger]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-05-23 10:02:41,902 INFO L146 ILogger]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2019-05-23 10:02:41,907 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 10:02:41,908 INFO L146 ILogger]: Finished difference Result 9 states and 9 transitions. [2019-05-23 10:02:41,908 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-05-23 10:02:41,908 INFO L146 ILogger]: Start accepts. Automaton has 3 states. Word has length 8 [2019-05-23 10:02:41,909 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 10:02:41,909 INFO L146 ILogger]: With dead ends: 9 [2019-05-23 10:02:41,909 INFO L146 ILogger]: Without dead ends: 0 [2019-05-23 10:02:41,910 INFO L146 ILogger]: 0 DeclaredPredicates, 7 GetRequests, 6 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 10:02:41,911 INFO L146 ILogger]: Start minimizeSevpa. Operand 0 states. [2019-05-23 10:02:41,911 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-05-23 10:02:41,911 INFO L146 ILogger]: Start removeUnreachable. Operand 0 states. [2019-05-23 10:02:41,912 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-05-23 10:02:41,912 INFO L146 ILogger]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-05-23 10:02:41,912 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 10:02:41,913 INFO L146 ILogger]: Abstraction has 0 states and 0 transitions. [2019-05-23 10:02:41,913 INFO L146 ILogger]: Interpolant automaton has 3 states. [2019-05-23 10:02:41,913 INFO L146 ILogger]: Start isEmpty. Operand 0 states and 0 transitions. [2019-05-23 10:02:41,913 INFO L146 ILogger]: Finished isEmpty. No accepting run. [2019-05-23 10:02:41,917 INFO L146 ILogger]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-05-23 10:02:41,918 INFO L146 ILogger]: Adding new model ArrayInit01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 10:02:41 BasicIcfg [2019-05-23 10:02:41,919 INFO L146 ILogger]: ------------------------ END TraceAbstraction---------------------------- [2019-05-23 10:02:41,921 INFO L146 ILogger]: Toolchain (without parser) took 1099.45 ms. Allocated memory is still 139.5 MB. Free memory was 109.1 MB in the beginning and 64.8 MB in the end (delta: 44.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. [2019-05-23 10:02:41,922 INFO L146 ILogger]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 110.4 MB in the beginning and 110.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-05-23 10:02:41,924 INFO L146 ILogger]: Boogie Procedure Inliner took 39.92 ms. Allocated memory is still 139.5 MB. Free memory was 109.1 MB in the beginning and 107.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-05-23 10:02:41,925 INFO L146 ILogger]: Boogie Preprocessor took 30.52 ms. Allocated memory is still 139.5 MB. Free memory was 107.2 MB in the beginning and 106.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-05-23 10:02:41,926 INFO L146 ILogger]: RCFGBuilder took 262.00 ms. Allocated memory is still 139.5 MB. Free memory was 105.9 MB in the beginning and 96.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-05-23 10:02:41,927 INFO L146 ILogger]: IcfgTransformer took 58.29 ms. Allocated memory is still 139.5 MB. Free memory was 96.7 MB in the beginning and 93.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-05-23 10:02:41,928 INFO L146 ILogger]: TraceAbstraction took 703.22 ms. Allocated memory is still 139.5 MB. Free memory was 93.1 MB in the beginning and 64.8 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2019-05-23 10:02:41,933 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 139.5 MB. Free memory was 110.4 MB in the beginning and 110.2 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 39.92 ms. Allocated memory is still 139.5 MB. Free memory was 109.1 MB in the beginning and 107.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.52 ms. Allocated memory is still 139.5 MB. Free memory was 107.2 MB in the beginning and 106.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 262.00 ms. Allocated memory is still 139.5 MB. Free memory was 105.9 MB in the beginning and 96.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * IcfgTransformer took 58.29 ms. Allocated memory is still 139.5 MB. Free memory was 96.7 MB in the beginning and 93.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 703.22 ms. Allocated memory is still 139.5 MB. Free memory was 93.1 MB in the beginning and 64.8 MB in the end (delta: 28.2 MB). Peak memory consumption was 28.2 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, 0.1s 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, 51 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...