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/20170304-DifficultPathPrograms/n.c11.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-7aa59a0 [2019-05-23 10:02:41,189 INFO L146 ILogger]: Resetting all preferences to default values... [2019-05-23 10:02:41,191 INFO L146 ILogger]: Resetting UltimateCore preferences to default values [2019-05-23 10:02:41,203 INFO L146 ILogger]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-05-23 10:02:41,204 INFO L146 ILogger]: Resetting Boogie Preprocessor preferences to default values [2019-05-23 10:02:41,205 INFO L146 ILogger]: Resetting Boogie Procedure Inliner preferences to default values [2019-05-23 10:02:41,206 INFO L146 ILogger]: Resetting Abstract Interpretation preferences to default values [2019-05-23 10:02:41,209 INFO L146 ILogger]: Resetting LassoRanker preferences to default values [2019-05-23 10:02:41,211 INFO L146 ILogger]: Resetting Reaching Definitions preferences to default values [2019-05-23 10:02:41,212 INFO L146 ILogger]: Resetting SyntaxChecker preferences to default values [2019-05-23 10:02:41,213 INFO L146 ILogger]: Büchi Program Product provides no preferences, ignoring... [2019-05-23 10:02:41,213 INFO L146 ILogger]: Resetting LTL2Aut preferences to default values [2019-05-23 10:02:41,214 INFO L146 ILogger]: Resetting PEA to Boogie preferences to default values [2019-05-23 10:02:41,216 INFO L146 ILogger]: Resetting BlockEncodingV2 preferences to default values [2019-05-23 10:02:41,217 INFO L146 ILogger]: Resetting ChcToBoogie preferences to default values [2019-05-23 10:02:41,218 INFO L146 ILogger]: Resetting AutomataScriptInterpreter preferences to default values [2019-05-23 10:02:41,219 INFO L146 ILogger]: Resetting BuchiAutomizer preferences to default values [2019-05-23 10:02:41,221 INFO L146 ILogger]: Resetting CACSL2BoogieTranslator preferences to default values [2019-05-23 10:02:41,223 INFO L146 ILogger]: Resetting CodeCheck preferences to default values [2019-05-23 10:02:41,225 INFO L146 ILogger]: Resetting InvariantSynthesis preferences to default values [2019-05-23 10:02:41,227 INFO L146 ILogger]: Resetting RCFGBuilder preferences to default values [2019-05-23 10:02:41,228 INFO L146 ILogger]: Resetting TraceAbstraction preferences to default values [2019-05-23 10:02:41,231 INFO L146 ILogger]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-05-23 10:02:41,232 INFO L146 ILogger]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-05-23 10:02:41,232 INFO L146 ILogger]: Resetting TreeAutomizer preferences to default values [2019-05-23 10:02:41,233 INFO L146 ILogger]: Resetting IcfgToChc preferences to default values [2019-05-23 10:02:41,234 INFO L146 ILogger]: Resetting IcfgTransformer preferences to default values [2019-05-23 10:02:41,235 INFO L146 ILogger]: ReqToTest provides no preferences, ignoring... [2019-05-23 10:02:41,235 INFO L146 ILogger]: Resetting Boogie Printer preferences to default values [2019-05-23 10:02:41,236 INFO L146 ILogger]: Resetting ChcSmtPrinter preferences to default values [2019-05-23 10:02:41,238 INFO L146 ILogger]: Resetting ReqPrinter preferences to default values [2019-05-23 10:02:41,238 INFO L146 ILogger]: Resetting Witness Printer preferences to default values [2019-05-23 10:02:41,240 INFO L146 ILogger]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-05-23 10:02:41,240 INFO L146 ILogger]: Resetting CDTParser preferences to default values [2019-05-23 10:02:41,241 INFO L146 ILogger]: AutomataScriptParser provides no preferences, ignoring... [2019-05-23 10:02:41,241 INFO L146 ILogger]: ReqParser provides no preferences, ignoring... [2019-05-23 10:02:41,242 INFO L146 ILogger]: Resetting SmtParser preferences to default values [2019-05-23 10:02:41,243 INFO L146 ILogger]: Resetting Witness Parser preferences to default values [2019-05-23 10:02:41,244 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 10:02:41,286 INFO L146 ILogger]: Repository-Root is: /tmp [2019-05-23 10:02:41,301 INFO L146 ILogger]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-05-23 10:02:41,307 INFO L146 ILogger]: [Toolchain 1]: Toolchain selected. [2019-05-23 10:02:41,309 INFO L146 ILogger]: Initializing Boogie PL CUP Parser... [2019-05-23 10:02:41,309 INFO L146 ILogger]: Boogie PL CUP Parser initialized [2019-05-23 10:02:41,314 INFO L146 ILogger]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/n.c11.i_3.bpl [2019-05-23 10:02:41,314 INFO L146 ILogger]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/n.c11.i_3.bpl' [2019-05-23 10:02:41,355 INFO L146 ILogger]: ####################### [Toolchain 1] ####################### [2019-05-23 10:02:41,357 INFO L146 ILogger]: Walking toolchain with 5 elements. [2019-05-23 10:02:41,357 INFO L146 ILogger]: ------------------------Boogie Procedure Inliner---------------------------- [2019-05-23 10:02:41,358 INFO L146 ILogger]: Initializing Boogie Procedure Inliner... [2019-05-23 10:02:41,358 INFO L146 ILogger]: Boogie Procedure Inliner initialized [2019-05-23 10:02:41,371 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:41" (1/1) ... [2019-05-23 10:02:41,382 INFO L146 ILogger]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:41" (1/1) ... [2019-05-23 10:02:41,391 INFO L146 ILogger]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-05-23 10:02:41,391 INFO L146 ILogger]: ------------------------Boogie Preprocessor---------------------------- [2019-05-23 10:02:41,392 INFO L146 ILogger]: Initializing Boogie Preprocessor... [2019-05-23 10:02:41,392 INFO L146 ILogger]: Boogie Preprocessor initialized [2019-05-23 10:02:41,402 INFO L146 ILogger]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:41" (1/1) ... [2019-05-23 10:02:41,403 INFO L146 ILogger]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:41" (1/1) ... [2019-05-23 10:02:41,404 INFO L146 ILogger]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:41" (1/1) ... [2019-05-23 10:02:41,404 INFO L146 ILogger]: Executing the observer StructExpander from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:41" (1/1) ... [2019-05-23 10:02:41,407 INFO L146 ILogger]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:41" (1/1) ... [2019-05-23 10:02:41,409 INFO L146 ILogger]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:41" (1/1) ... [2019-05-23 10:02:41,410 INFO L146 ILogger]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:41" (1/1) ... [2019-05-23 10:02:41,411 INFO L146 ILogger]: ------------------------ END Boogie Preprocessor---------------------------- [2019-05-23 10:02:41,412 INFO L146 ILogger]: ------------------------RCFGBuilder---------------------------- [2019-05-23 10:02:41,412 INFO L146 ILogger]: Initializing RCFGBuilder... [2019-05-23 10:02:41,412 INFO L146 ILogger]: RCFGBuilder initialized [2019-05-23 10:02:41,413 INFO L146 ILogger]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:41" (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 10:02:41,476 INFO L146 ILogger]: Found specification of procedure ULTIMATE.start [2019-05-23 10:02:41,476 INFO L146 ILogger]: Found implementation of procedure ULTIMATE.start [2019-05-23 10:02:41,768 INFO L146 ILogger]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-05-23 10:02:41,768 INFO L146 ILogger]: Removed 1 assume(true) statements. [2019-05-23 10:02:41,770 INFO L146 ILogger]: Adding new model n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 10:02:41 BoogieIcfgContainer [2019-05-23 10:02:41,770 INFO L146 ILogger]: ------------------------ END RCFGBuilder---------------------------- [2019-05-23 10:02:41,770 INFO L146 ILogger]: ------------------------IcfgTransformer---------------------------- [2019-05-23 10:02:41,771 INFO L146 ILogger]: Initializing IcfgTransformer... [2019-05-23 10:02:41,772 INFO L146 ILogger]: IcfgTransformer initialized [2019-05-23 10:02:41,777 INFO L146 ILogger]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 10:02:41" (1/1) ... [2019-05-23 10:02:41,833 INFO L146 ILogger]: L36 [2019-05-23 10:02:41,833 INFO L146 ILogger]: In Formula: (= v_ULTIMATE.start_main_~a~5_3 (store v_ULTIMATE.start_main_~a~5_4 (mod v_ULTIMATE.start_main_~len~5_5 4294967296) 0)) InVars {ULTIMATE.start_main_~a~5=v_ULTIMATE.start_main_~a~5_4, ULTIMATE.start_main_~len~5=v_ULTIMATE.start_main_~len~5_5} OutVars{ULTIMATE.start_main_~a~5=v_ULTIMATE.start_main_~a~5_3, ULTIMATE.start_main_~len~5=v_ULTIMATE.start_main_~len~5_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~5] [2019-05-23 10:02:41,834 INFO L146 ILogger]: Out Formula: (and v_ULTIMATE.start_main_~a~5_idx_0_term_assigned_1 (or (not v_ULTIMATE.start_main_~a~5_idx_0_term_assigned_1) (= (mod v_ULTIMATE.start_main_~len~5_5 4294967296) v_ULTIMATE.start_main_~a~5_idx_0_term_1)) (or (not (= (mod v_ULTIMATE.start_main_~len~5_5 4294967296) v_ULTIMATE.start_main_~a~5_idx_0_term_1)) (= v_ULTIMATE.start_main_~a~5_val_1_in_1 0)) (= v_ULTIMATE.start_main_~a~5_val_0_out_1 v_ULTIMATE.start_main_~a~5_val_0_in_1) (= v_ULTIMATE.start_main_~a~5_val_1_in_1 v_ULTIMATE.start_main_~a~5_val_1_out_1) (or (= v_ULTIMATE.start_main_~a~5_val_0_in_1 0) (not (= (mod v_ULTIMATE.start_main_~len~5_5 4294967296) v_ULTIMATE.start_main_~a~5_idx_0_term_1))) (or (not (= v_ULTIMATE.start_main_~a~5_idx_1_term_1 (mod v_ULTIMATE.start_main_~len~5_5 4294967296))) (= v_ULTIMATE.start_main_~a~5_val_1_in_1 0)) v_ULTIMATE.start_main_~a~5_idx_1_term_assigned_1 (or (not (= v_ULTIMATE.start_main_~a~5_idx_1_term_1 (mod v_ULTIMATE.start_main_~len~5_5 4294967296))) (= v_ULTIMATE.start_main_~a~5_val_0_in_1 0)) (or (not v_ULTIMATE.start_main_~a~5_idx_1_term_assigned_1) (= v_ULTIMATE.start_main_~a~5_idx_1_term_1 (mod v_ULTIMATE.start_main_~len~5_5 4294967296)))) InVars {ULTIMATE.start_main_~a~5_idx_0=v_ULTIMATE.start_main_~a~5_idx_0_term_1, ULTIMATE.start_main_~a~5_idx_1_bool=v_ULTIMATE.start_main_~a~5_idx_1_term_assigned_1, ULTIMATE.start_main_~a~5_val_0=v_ULTIMATE.start_main_~a~5_val_0_in_1, ULTIMATE.start_main_~a~5_idx_1=v_ULTIMATE.start_main_~a~5_idx_1_term_1, ULTIMATE.start_main_~a~5_idx_0_bool=v_ULTIMATE.start_main_~a~5_idx_0_term_assigned_1, ULTIMATE.start_main_~a~5_val_1=v_ULTIMATE.start_main_~a~5_val_1_in_1, ULTIMATE.start_main_~len~5=v_ULTIMATE.start_main_~len~5_5} OutVars{ULTIMATE.start_main_~a~5_idx_0=v_ULTIMATE.start_main_~a~5_idx_0_term_1, ULTIMATE.start_main_~a~5_idx_1_bool=v_ULTIMATE.start_main_~a~5_idx_1_term_assigned_1, ULTIMATE.start_main_~a~5_val_0=v_ULTIMATE.start_main_~a~5_val_0_out_1, ULTIMATE.start_main_~a~5_idx_1=v_ULTIMATE.start_main_~a~5_idx_1_term_1, ULTIMATE.start_main_~a~5_idx_0_bool=v_ULTIMATE.start_main_~a~5_idx_0_term_assigned_1, ULTIMATE.start_main_~a~5_val_1=v_ULTIMATE.start_main_~a~5_val_1_out_1, ULTIMATE.start_main_~len~5=v_ULTIMATE.start_main_~len~5_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~a~5_val_0, ULTIMATE.start_main_~a~5_val_1] [2019-05-23 10:02:41,835 INFO L146 ILogger]: L37 [2019-05-23 10:02:41,861 INFO L146 ILogger]: Adding new model n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 10:02:41 BasicIcfg [2019-05-23 10:02:41,861 INFO L146 ILogger]: ------------------------ END IcfgTransformer---------------------------- [2019-05-23 10:02:41,867 INFO L146 ILogger]: ------------------------TraceAbstraction---------------------------- [2019-05-23 10:02:41,867 INFO L146 ILogger]: Initializing TraceAbstraction... [2019-05-23 10:02:41,870 INFO L146 ILogger]: TraceAbstraction initialized [2019-05-23 10:02:41,871 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.05 10:02:41" (1/3) ... [2019-05-23 10:02:41,875 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eafd437 and model type n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.05 10:02:41, skipping insertion in model container [2019-05-23 10:02:41,875 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.05 10:02:41" (2/3) ... [2019-05-23 10:02:41,879 INFO L146 ILogger]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eafd437 and model type n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 10:02:41, skipping insertion in model container [2019-05-23 10:02:41,879 INFO L146 ILogger]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 23.05 10:02:41" (3/3) ... [2019-05-23 10:02:41,883 INFO L146 ILogger]: Analyzing ICFG n.c11.i_3.bplME [2019-05-23 10:02:41,898 INFO L146 ILogger]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-05-23 10:02:41,907 INFO L146 ILogger]: Appying trace abstraction to program that has 1 error locations. [2019-05-23 10:02:41,924 INFO L146 ILogger]: Starting to check reachability of 1 error locations. [2019-05-23 10:02:41,971 INFO L146 ILogger]: Using default assertion order modulation [2019-05-23 10:02:41,972 INFO L146 ILogger]: Interprodecural is true [2019-05-23 10:02:41,972 INFO L146 ILogger]: Hoare is false [2019-05-23 10:02:41,972 INFO L146 ILogger]: Compute interpolants for ForwardPredicates [2019-05-23 10:02:41,972 INFO L146 ILogger]: Backedges is STRAIGHT_LINE [2019-05-23 10:02:41,973 INFO L146 ILogger]: Determinization is PREDICATE_ABSTRACTION [2019-05-23 10:02:41,973 INFO L146 ILogger]: Difference is false [2019-05-23 10:02:41,973 INFO L146 ILogger]: Minimize is MINIMIZE_SEVPA [2019-05-23 10:02:41,973 INFO L146 ILogger]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-05-23 10:02:41,988 INFO L146 ILogger]: Start isEmpty. Operand 22 states. [2019-05-23 10:02:41,998 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 14 [2019-05-23 10:02:41,998 INFO L146 ILogger]: Found error trace [2019-05-23 10:02:41,999 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 10:02:42,001 INFO L146 ILogger]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 10:02:42,007 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 10:02:42,008 INFO L146 ILogger]: Analyzing trace with hash 1215222149, now seen corresponding path program 1 times [2019-05-23 10:02:42,060 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 10:02:42,103 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 10:02:42,107 INFO L146 ILogger]: Trace formula consists of 20 conjuncts, 6 conjunts are in the unsatisfiable core [2019-05-23 10:02:42,112 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 10:02:42,246 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 10:02:42,249 INFO L146 ILogger]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-05-23 10:02:42,249 INFO L146 ILogger]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-05-23 10:02:42,253 INFO L146 ILogger]: Interpolant automaton has 5 states [2019-05-23 10:02:42,265 INFO L146 ILogger]: Constructing interpolant automaton starting with 5 interpolants. [2019-05-23 10:02:42,266 INFO L146 ILogger]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-05-23 10:02:42,269 INFO L146 ILogger]: Start difference. First operand 22 states. Second operand 5 states. [2019-05-23 10:02:42,468 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 10:02:42,468 INFO L146 ILogger]: Finished difference Result 31 states and 31 transitions. [2019-05-23 10:02:42,469 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-05-23 10:02:42,471 INFO L146 ILogger]: Start accepts. Automaton has 5 states. Word has length 13 [2019-05-23 10:02:42,472 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 10:02:42,482 INFO L146 ILogger]: With dead ends: 31 [2019-05-23 10:02:42,482 INFO L146 ILogger]: Without dead ends: 26 [2019-05-23 10:02:42,484 INFO L146 ILogger]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-05-23 10:02:42,501 INFO L146 ILogger]: Start minimizeSevpa. Operand 26 states. [2019-05-23 10:02:42,513 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 26 to 21. [2019-05-23 10:02:42,514 INFO L146 ILogger]: Start removeUnreachable. Operand 21 states. [2019-05-23 10:02:42,515 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-05-23 10:02:42,516 INFO L146 ILogger]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 13 [2019-05-23 10:02:42,517 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 10:02:42,517 INFO L146 ILogger]: Abstraction has 21 states and 21 transitions. [2019-05-23 10:02:42,517 INFO L146 ILogger]: Interpolant automaton has 5 states. [2019-05-23 10:02:42,517 INFO L146 ILogger]: Start isEmpty. Operand 21 states and 21 transitions. [2019-05-23 10:02:42,518 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 21 [2019-05-23 10:02:42,518 INFO L146 ILogger]: Found error trace [2019-05-23 10:02:42,518 INFO L146 ILogger]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 10:02:42,518 INFO L146 ILogger]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 10:02:42,519 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 10:02:42,519 INFO L146 ILogger]: Analyzing trace with hash -346643181, now seen corresponding path program 1 times [2019-05-23 10:02:42,520 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 10:02:42,547 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 10:02:42,549 INFO L146 ILogger]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2019-05-23 10:02:42,551 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 10:02:42,700 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 10:02:42,700 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 10:02:42,702 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-05-23 10:02:42,705 INFO L146 ILogger]: Interpolant automaton has 7 states [2019-05-23 10:02:42,706 INFO L146 ILogger]: Constructing interpolant automaton starting with 7 interpolants. [2019-05-23 10:02:42,707 INFO L146 ILogger]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-05-23 10:02:42,707 INFO L146 ILogger]: Start difference. First operand 21 states and 21 transitions. Second operand 7 states. [2019-05-23 10:02:43,073 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 10:02:43,073 INFO L146 ILogger]: Finished difference Result 38 states and 38 transitions. [2019-05-23 10:02:43,073 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-05-23 10:02:43,074 INFO L146 ILogger]: Start accepts. Automaton has 7 states. Word has length 20 [2019-05-23 10:02:43,074 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 10:02:43,075 INFO L146 ILogger]: With dead ends: 38 [2019-05-23 10:02:43,075 INFO L146 ILogger]: Without dead ends: 33 [2019-05-23 10:02:43,076 INFO L146 ILogger]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-05-23 10:02:43,077 INFO L146 ILogger]: Start minimizeSevpa. Operand 33 states. [2019-05-23 10:02:43,080 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 33 to 28. [2019-05-23 10:02:43,080 INFO L146 ILogger]: Start removeUnreachable. Operand 28 states. [2019-05-23 10:02:43,081 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2019-05-23 10:02:43,082 INFO L146 ILogger]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 20 [2019-05-23 10:02:43,083 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 10:02:43,083 INFO L146 ILogger]: Abstraction has 28 states and 28 transitions. [2019-05-23 10:02:43,083 INFO L146 ILogger]: Interpolant automaton has 7 states. [2019-05-23 10:02:43,083 INFO L146 ILogger]: Start isEmpty. Operand 28 states and 28 transitions. [2019-05-23 10:02:43,084 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 28 [2019-05-23 10:02:43,084 INFO L146 ILogger]: Found error trace [2019-05-23 10:02:43,085 INFO L146 ILogger]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 10:02:43,085 INFO L146 ILogger]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 10:02:43,085 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 10:02:43,087 INFO L146 ILogger]: Analyzing trace with hash -1116580411, now seen corresponding path program 2 times [2019-05-23 10:02:43,091 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 10:02:43,150 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 10:02:43,155 INFO L146 ILogger]: Trace formula consists of 60 conjuncts, 14 conjunts are in the unsatisfiable core [2019-05-23 10:02:43,157 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 10:02:43,384 INFO L146 ILogger]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 10:02:43,385 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 10:02:43,385 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-05-23 10:02:43,385 INFO L146 ILogger]: Interpolant automaton has 9 states [2019-05-23 10:02:43,387 INFO L146 ILogger]: Constructing interpolant automaton starting with 9 interpolants. [2019-05-23 10:02:43,388 INFO L146 ILogger]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-05-23 10:02:43,389 INFO L146 ILogger]: Start difference. First operand 28 states and 28 transitions. Second operand 9 states. [2019-05-23 10:02:43,882 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 10:02:43,882 INFO L146 ILogger]: Finished difference Result 45 states and 45 transitions. [2019-05-23 10:02:43,883 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-05-23 10:02:43,883 INFO L146 ILogger]: Start accepts. Automaton has 9 states. Word has length 27 [2019-05-23 10:02:43,883 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 10:02:43,884 INFO L146 ILogger]: With dead ends: 45 [2019-05-23 10:02:43,884 INFO L146 ILogger]: Without dead ends: 40 [2019-05-23 10:02:43,885 INFO L146 ILogger]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2019-05-23 10:02:43,885 INFO L146 ILogger]: Start minimizeSevpa. Operand 40 states. [2019-05-23 10:02:43,888 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 40 to 35. [2019-05-23 10:02:43,889 INFO L146 ILogger]: Start removeUnreachable. Operand 35 states. [2019-05-23 10:02:43,890 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2019-05-23 10:02:43,890 INFO L146 ILogger]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 27 [2019-05-23 10:02:43,890 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 10:02:43,890 INFO L146 ILogger]: Abstraction has 35 states and 35 transitions. [2019-05-23 10:02:43,890 INFO L146 ILogger]: Interpolant automaton has 9 states. [2019-05-23 10:02:43,891 INFO L146 ILogger]: Start isEmpty. Operand 35 states and 35 transitions. [2019-05-23 10:02:43,891 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 35 [2019-05-23 10:02:43,892 INFO L146 ILogger]: Found error trace [2019-05-23 10:02:43,892 INFO L146 ILogger]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 10:02:43,892 INFO L146 ILogger]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 10:02:43,892 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 10:02:43,893 INFO L146 ILogger]: Analyzing trace with hash 1885460691, now seen corresponding path program 3 times [2019-05-23 10:02:43,893 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 10:02:43,924 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 10:02:43,927 INFO L146 ILogger]: Trace formula consists of 80 conjuncts, 18 conjunts are in the unsatisfiable core [2019-05-23 10:02:43,929 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 10:02:44,122 INFO L146 ILogger]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 10:02:44,123 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 10:02:44,123 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2019-05-23 10:02:44,123 INFO L146 ILogger]: Interpolant automaton has 11 states [2019-05-23 10:02:44,124 INFO L146 ILogger]: Constructing interpolant automaton starting with 11 interpolants. [2019-05-23 10:02:44,124 INFO L146 ILogger]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-05-23 10:02:44,124 INFO L146 ILogger]: Start difference. First operand 35 states and 35 transitions. Second operand 11 states. [2019-05-23 10:02:44,515 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 10:02:44,515 INFO L146 ILogger]: Finished difference Result 52 states and 52 transitions. [2019-05-23 10:02:44,516 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-05-23 10:02:44,516 INFO L146 ILogger]: Start accepts. Automaton has 11 states. Word has length 34 [2019-05-23 10:02:44,517 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 10:02:44,518 INFO L146 ILogger]: With dead ends: 52 [2019-05-23 10:02:44,518 INFO L146 ILogger]: Without dead ends: 47 [2019-05-23 10:02:44,519 INFO L146 ILogger]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2019-05-23 10:02:44,520 INFO L146 ILogger]: Start minimizeSevpa. Operand 47 states. [2019-05-23 10:02:44,524 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 47 to 42. [2019-05-23 10:02:44,525 INFO L146 ILogger]: Start removeUnreachable. Operand 42 states. [2019-05-23 10:02:44,526 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2019-05-23 10:02:44,526 INFO L146 ILogger]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 34 [2019-05-23 10:02:44,526 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 10:02:44,526 INFO L146 ILogger]: Abstraction has 42 states and 42 transitions. [2019-05-23 10:02:44,526 INFO L146 ILogger]: Interpolant automaton has 11 states. [2019-05-23 10:02:44,528 INFO L146 ILogger]: Start isEmpty. Operand 42 states and 42 transitions. [2019-05-23 10:02:44,528 INFO L146 ILogger]: Finished isEmpty. Found accepting run of length 42 [2019-05-23 10:02:44,528 INFO L146 ILogger]: Found error trace [2019-05-23 10:02:44,529 INFO L146 ILogger]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-05-23 10:02:44,529 INFO L146 ILogger]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-05-23 10:02:44,529 INFO L146 ILogger]: Initialized classic predicate unifier [2019-05-23 10:02:44,529 INFO L146 ILogger]: Analyzing trace with hash 1255762437, now seen corresponding path program 4 times [2019-05-23 10:02:44,531 INFO L146 ILogger]: Using refinement strategy FixedRefinementStrategy [2019-05-23 10:02:44,594 INFO L146 ILogger]: Conjunction of SSA is unsat [2019-05-23 10:02:44,599 INFO L146 ILogger]: Trace formula consists of 100 conjuncts, 22 conjunts are in the unsatisfiable core [2019-05-23 10:02:44,602 INFO L146 ILogger]: Computing forward predicates... [2019-05-23 10:02:44,799 INFO L146 ILogger]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-05-23 10:02:44,800 INFO L146 ILogger]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-05-23 10:02:44,800 INFO L146 ILogger]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2019-05-23 10:02:44,800 INFO L146 ILogger]: Interpolant automaton has 13 states [2019-05-23 10:02:44,801 INFO L146 ILogger]: Constructing interpolant automaton starting with 13 interpolants. [2019-05-23 10:02:44,801 INFO L146 ILogger]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-05-23 10:02:44,801 INFO L146 ILogger]: Start difference. First operand 42 states and 42 transitions. Second operand 13 states. [2019-05-23 10:02:45,140 INFO L146 ILogger]: Subtrahend was deterministic. Have not used determinization. [2019-05-23 10:02:45,140 INFO L146 ILogger]: Finished difference Result 41 states and 40 transitions. [2019-05-23 10:02:45,141 INFO L146 ILogger]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-05-23 10:02:45,141 INFO L146 ILogger]: Start accepts. Automaton has 13 states. Word has length 41 [2019-05-23 10:02:45,142 INFO L146 ILogger]: Finished accepts. some prefix is accepted. [2019-05-23 10:02:45,142 INFO L146 ILogger]: With dead ends: 41 [2019-05-23 10:02:45,142 INFO L146 ILogger]: Without dead ends: 0 [2019-05-23 10:02:45,142 INFO L146 ILogger]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2019-05-23 10:02:45,143 INFO L146 ILogger]: Start minimizeSevpa. Operand 0 states. [2019-05-23 10:02:45,143 INFO L146 ILogger]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-05-23 10:02:45,143 INFO L146 ILogger]: Start removeUnreachable. Operand 0 states. [2019-05-23 10:02:45,143 INFO L146 ILogger]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-05-23 10:02:45,143 INFO L146 ILogger]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2019-05-23 10:02:45,143 INFO L146 ILogger]: Finished accepts. word is rejected. [2019-05-23 10:02:45,143 INFO L146 ILogger]: Abstraction has 0 states and 0 transitions. [2019-05-23 10:02:45,144 INFO L146 ILogger]: Interpolant automaton has 13 states. [2019-05-23 10:02:45,144 INFO L146 ILogger]: Start isEmpty. Operand 0 states and 0 transitions. [2019-05-23 10:02:45,144 INFO L146 ILogger]: Finished isEmpty. No accepting run. [2019-05-23 10:02:45,147 INFO L146 ILogger]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-05-23 10:02:45,149 INFO L146 ILogger]: Adding new model n.c11.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.05 10:02:45 BasicIcfg [2019-05-23 10:02:45,149 INFO L146 ILogger]: ------------------------ END TraceAbstraction---------------------------- [2019-05-23 10:02:45,151 INFO L146 ILogger]: Toolchain (without parser) took 3793.77 ms. Allocated memory was 109.1 MB in the beginning and 165.7 MB in the end (delta: 56.6 MB). Free memory was 79.6 MB in the beginning and 81.1 MB in the end (delta: -1.5 MB). Peak memory consumption was 55.1 MB. Max. memory is 7.1 GB. [2019-05-23 10:02:45,153 INFO L146 ILogger]: Boogie PL CUP Parser took 0.35 ms. Allocated memory is still 109.1 MB. Free memory was 80.9 MB in the beginning and 80.8 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. [2019-05-23 10:02:45,154 INFO L146 ILogger]: Boogie Procedure Inliner took 33.67 ms. Allocated memory is still 109.1 MB. Free memory was 79.5 MB in the beginning and 77.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-05-23 10:02:45,155 INFO L146 ILogger]: Boogie Preprocessor took 20.02 ms. Allocated memory is still 109.1 MB. Free memory was 77.8 MB in the beginning and 76.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-05-23 10:02:45,156 INFO L146 ILogger]: RCFGBuilder took 357.99 ms. Allocated memory is still 109.1 MB. Free memory was 76.7 MB in the beginning and 67.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-05-23 10:02:45,157 INFO L146 ILogger]: IcfgTransformer took 90.88 ms. Allocated memory is still 109.1 MB. Free memory was 67.6 MB in the beginning and 64.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-05-23 10:02:45,158 INFO L146 ILogger]: TraceAbstraction took 3282.31 ms. Allocated memory was 109.1 MB in the beginning and 165.7 MB in the end (delta: 56.6 MB). Free memory was 64.5 MB in the beginning and 81.1 MB in the end (delta: -16.5 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. [2019-05-23 10:02:45,163 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 0.35 ms. Allocated memory is still 109.1 MB. Free memory was 80.9 MB in the beginning and 80.8 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 33.67 ms. Allocated memory is still 109.1 MB. Free memory was 79.5 MB in the beginning and 77.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.02 ms. Allocated memory is still 109.1 MB. Free memory was 77.8 MB in the beginning and 76.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 357.99 ms. Allocated memory is still 109.1 MB. Free memory was 76.7 MB in the beginning and 67.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * IcfgTransformer took 90.88 ms. Allocated memory is still 109.1 MB. Free memory was 67.6 MB in the beginning and 64.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3282.31 ms. Allocated memory was 109.1 MB in the beginning and 165.7 MB in the end (delta: 56.6 MB). Free memory was 64.5 MB in the beginning and 81.1 MB in the end (delta: -16.5 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: 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, 22 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 97 SDtfs, 52 SDslu, 582 SDs, 0 SdLazy, 576 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 160 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=4, 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, 5 MinimizatonAttempts, 20 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 135 NumberOfCodeBlocks, 135 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 10310 SizeOfPredicates, 35 NumberOfNonLiveVariables, 300 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 0/80 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...