java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_false-valid-free.i_17.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:03:41,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:03:41,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:03:41,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:03:41,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:03:41,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:03:41,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:03:41,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:03:41,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:03:41,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:03:41,421 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:03:41,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:03:41,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:03:41,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:03:41,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:03:41,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:03:41,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:03:41,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:03:41,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:03:41,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:03:41,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:03:41,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:03:41,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:03:41,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:03:41,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 11:03:41,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:03:41,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:03:41,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:03:41,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:03:41,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:03:41,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:03:41,453 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:03:41,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:03:41,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:03:41,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:03:41,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:03:41,497 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:03:41,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:03:41,512 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:03:41,513 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:03:41,514 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:03:41,515 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_false-valid-free.i_17.bpl [2019-08-05 11:03:41,515 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/test-bitfields-2.1_false-valid-free.i_17.bpl' [2019-08-05 11:03:41,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:03:41,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:03:41,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:03:41,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:03:41,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:03:41,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:03:41" (1/1) ... [2019-08-05 11:03:41,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:03:41" (1/1) ... [2019-08-05 11:03:41,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:03:41,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:03:41,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:03:41,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:03:41,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:03:41" (1/1) ... [2019-08-05 11:03:41,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:03:41" (1/1) ... [2019-08-05 11:03:41,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:03:41" (1/1) ... [2019-08-05 11:03:41,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:03:41" (1/1) ... [2019-08-05 11:03:41,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:03:41" (1/1) ... [2019-08-05 11:03:41,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:03:41" (1/1) ... [2019-08-05 11:03:41,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:03:41" (1/1) ... [2019-08-05 11:03:41,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:03:41,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:03:41,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:03:41,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:03:41,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:03:41" (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:1024 -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:1024 -smt2 -in -t:12000 [2019-08-05 11:03:41,717 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:03:41,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:03:41,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:03:42,113 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:03:42,113 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:03:42,114 INFO L202 PluginConnector]: Adding new model test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:03:42 BoogieIcfgContainer [2019-08-05 11:03:42,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:03:42,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:03:42,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:03:42,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:03:42,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:03:41" (1/2) ... [2019-08-05 11:03:42,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60402d5c and model type test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:03:42, skipping insertion in model container [2019-08-05 11:03:42,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:03:42" (2/2) ... [2019-08-05 11:03:42,123 INFO L109 eAbstractionObserver]: Analyzing ICFG test-bitfields-2.1_false-valid-free.i_17.bpl [2019-08-05 11:03:42,133 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:03:42,141 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:03:42,158 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:03:42,183 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:03:42,184 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:03:42,185 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:03:42,185 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:03:42,185 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:03:42,185 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:03:42,185 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:03:42,186 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:03:42,186 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:03:42,199 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-08-05 11:03:42,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 11:03:42,208 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:03:42,209 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 11:03:42,211 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:03:42,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:03:42,216 INFO L82 PathProgramCache]: Analyzing trace with hash 29985, now seen corresponding path program 1 times [2019-08-05 11:03:42,264 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:03:42,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:03:42,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 11:03:42,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:03:42,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:03:42,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:03:42,520 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:03:42,524 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:03:42,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:03:42,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:03:42,542 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2019-08-05 11:03:42,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:03:42,586 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-08-05 11:03:42,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:03:42,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 11:03:42,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:03:42,599 INFO L225 Difference]: With dead ends: 5 [2019-08-05 11:03:42,599 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 11:03:42,601 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:03:42,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 11:03:42,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 11:03:42,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 11:03:42,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-08-05 11:03:42,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-08-05 11:03:42,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:03:42,634 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-08-05 11:03:42,635 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:03:42,635 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-08-05 11:03:42,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:03:42,635 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:03:42,636 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:03:42,636 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:03:42,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:03:42,637 INFO L82 PathProgramCache]: Analyzing trace with hash 927559, now seen corresponding path program 1 times [2019-08-05 11:03:42,638 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:03:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:03:42,729 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 11:03:42,731 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:03:42,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:03:42,963 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:03:42,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 11:03:42,968 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:03:42,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:03:42,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:03:42,984 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2019-08-05 11:03:43,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:03:43,070 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2019-08-05 11:03:43,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:03:43,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 11:03:43,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:03:43,071 INFO L225 Difference]: With dead ends: 6 [2019-08-05 11:03:43,071 INFO L226 Difference]: Without dead ends: 6 [2019-08-05 11:03:43,073 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:03:43,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-05 11:03:43,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-05 11:03:43,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 11:03:43,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-08-05 11:03:43,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-08-05 11:03:43,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:03:43,075 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-08-05 11:03:43,075 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:03:43,075 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-08-05 11:03:43,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 11:03:43,076 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:03:43,076 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-08-05 11:03:43,076 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:03:43,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:03:43,077 INFO L82 PathProgramCache]: Analyzing trace with hash 28752353, now seen corresponding path program 2 times [2019-08-05 11:03:43,078 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:03:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:03:43,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 11:03:43,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:03:43,279 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:03:43,280 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:03:43,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-05 11:03:43,280 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 11:03:43,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 11:03:43,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:03:43,281 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2019-08-05 11:03:43,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:03:43,331 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-05 11:03:43,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:03:43,331 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-08-05 11:03:43,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:03:43,332 INFO L225 Difference]: With dead ends: 7 [2019-08-05 11:03:43,332 INFO L226 Difference]: Without dead ends: 7 [2019-08-05 11:03:43,333 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:03:43,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-05 11:03:43,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-05 11:03:43,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 11:03:43,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 11:03:43,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-08-05 11:03:43,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:03:43,335 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 11:03:43,335 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 11:03:43,335 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 11:03:43,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 11:03:43,335 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:03:43,336 INFO L399 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2019-08-05 11:03:43,336 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:03:43,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:03:43,336 INFO L82 PathProgramCache]: Analyzing trace with hash 891320967, now seen corresponding path program 3 times [2019-08-05 11:03:43,337 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:03:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:03:43,375 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 6 conjunts are in the unsatisfiable core [2019-08-05 11:03:43,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:03:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:03:43,533 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:03:43,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-08-05 11:03:43,534 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-05 11:03:43,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-05 11:03:43,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-08-05 11:03:43,535 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2019-08-05 11:03:43,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:03:43,588 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 11:03:43,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-08-05 11:03:43,589 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-08-05 11:03:43,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:03:43,590 INFO L225 Difference]: With dead ends: 8 [2019-08-05 11:03:43,590 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 11:03:43,590 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-08-05 11:03:43,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 11:03:43,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-08-05 11:03:43,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-08-05 11:03:43,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-08-05 11:03:43,592 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-08-05 11:03:43,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:03:43,593 INFO L475 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-08-05 11:03:43,594 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-05 11:03:43,594 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-08-05 11:03:43,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-08-05 11:03:43,598 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:03:43,598 INFO L399 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2019-08-05 11:03:43,599 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:03:43,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:03:43,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1861144225, now seen corresponding path program 4 times [2019-08-05 11:03:43,600 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:03:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:03:43,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 37 conjunts are in the unsatisfiable core [2019-08-05 11:03:43,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:03:43,886 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-08-05 11:03:43,887 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:44,092 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2019-08-05 11:03:44,093 INFO L567 ElimStorePlain]: treesize reduction 3, result has 96.0 percent of original size [2019-08-05 11:03:44,166 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:44,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:44,206 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:44,232 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:44,259 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:44,274 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:44,278 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:44,286 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:44,288 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:44,290 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:45,270 WARN L188 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-08-05 11:03:45,271 INFO L341 Elim1Store]: treesize reduction 54, result has 75.2 percent of original size [2019-08-05 11:03:45,273 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 205 [2019-08-05 11:03:45,279 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:45,536 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2019-08-05 11:03:45,536 INFO L567 ElimStorePlain]: treesize reduction 114, result has 50.6 percent of original size [2019-08-05 11:03:45,540 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-08-05 11:03:45,549 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-08-05 11:03:45,550 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:80, output treesize:56 [2019-08-05 11:03:45,648 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:45,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:45,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:45,651 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:45,653 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:45,670 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:45,678 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:45,684 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:45,685 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:45,941 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-08-05 11:03:45,941 INFO L341 Elim1Store]: treesize reduction 48, result has 73.8 percent of original size [2019-08-05 11:03:45,942 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 50 treesize of output 154 [2019-08-05 11:03:45,944 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:46,162 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-08-05 11:03:46,163 INFO L567 ElimStorePlain]: treesize reduction 83, result has 53.9 percent of original size [2019-08-05 11:03:46,164 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:46,166 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:46,167 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:46,170 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-08-05 11:03:46,170 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:71, output treesize:97 [2019-08-05 11:03:46,171 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:46,171 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:46,172 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:46,229 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:46,229 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:46,231 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:46,280 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,288 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,289 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,290 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,293 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,294 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,296 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,300 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,301 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,303 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,304 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,345 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,367 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,369 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,378 INFO L235 Elim1Store]: Index analysis took 103 ms [2019-08-05 11:03:46,383 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 80 [2019-08-05 11:03:46,385 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:46,439 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,441 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,443 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,444 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,446 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,450 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,451 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,453 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,455 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,457 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,460 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,461 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,464 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,466 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,469 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,497 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,501 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 82 [2019-08-05 11:03:46,502 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:46,518 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,520 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,521 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,523 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,525 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,527 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,528 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,530 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,534 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,536 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,538 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,539 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,556 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,568 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,573 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 73 [2019-08-05 11:03:46,574 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:46,610 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,611 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,612 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,614 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,615 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,618 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,622 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,623 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:46,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:46,870 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-08-05 11:03:46,870 INFO L341 Elim1Store]: treesize reduction 34, result has 81.5 percent of original size [2019-08-05 11:03:46,872 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 209 [2019-08-05 11:03:46,875 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:47,272 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 86 [2019-08-05 11:03:47,273 INFO L567 ElimStorePlain]: treesize reduction 157, result has 66.2 percent of original size [2019-08-05 11:03:47,274 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:47,277 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 4 xjuncts. [2019-08-05 11:03:47,277 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:339, output treesize:307 [2019-08-05 11:03:47,278 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:47,542 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-08-05 11:03:47,546 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-08-05 11:03:47,547 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:47,550 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:47,619 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:47,621 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:47,623 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:47,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:47,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:47,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:47,634 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:47,637 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:47,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:47,645 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:47,660 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:47,720 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:47,723 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:47,746 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,001 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2019-08-05 11:03:48,002 INFO L341 Elim1Store]: treesize reduction 39, result has 80.4 percent of original size [2019-08-05 11:03:48,003 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 105 treesize of output 243 [2019-08-05 11:03:48,006 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:48,043 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,045 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,047 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:48,049 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,050 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,052 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,055 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,057 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,059 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,061 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,063 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,065 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,067 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,069 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,071 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,073 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,079 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:48,102 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 96 [2019-08-05 11:03:48,103 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:48,154 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,169 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,171 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,172 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,173 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,174 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,180 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,182 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,182 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:48,184 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,186 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,188 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,206 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:48,212 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 83 [2019-08-05 11:03:48,213 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:48,232 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,235 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,236 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,238 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,240 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,242 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,245 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,247 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,254 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,258 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,260 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,261 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,262 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,262 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:48,264 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,266 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,268 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,271 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,300 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:48,305 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 97 [2019-08-05 11:03:48,307 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:48,332 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,333 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,334 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,335 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,336 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,337 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,338 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,340 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,341 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,343 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,344 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,345 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:48,346 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,348 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,349 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,350 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,352 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,353 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:48,356 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 93 [2019-08-05 11:03:48,357 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:48,989 WARN L188 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 94 [2019-08-05 11:03:48,989 INFO L567 ElimStorePlain]: treesize reduction 148, result has 75.8 percent of original size [2019-08-05 11:03:48,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:48,992 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 5 xjuncts. [2019-08-05 11:03:48,992 INFO L221 ElimStorePlain]: Needed 6 recursive calls to eliminate 2 variables, input treesize:488, output treesize:464 [2019-08-05 11:03:48,993 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:49,248 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2019-08-05 11:03:49,251 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-08-05 11:03:49,255 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:49,259 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:03:49,291 INFO L392 ElimStorePlain]: Different costs {42=[|v_#memory_int_23|], 56=[v_prenex_3, v_prenex_11, v_prenex_6], 270=[v_prenex_9]} [2019-08-05 11:03:49,352 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,383 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,400 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,415 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,425 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,439 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,442 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,457 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,462 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,467 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,480 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,489 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,499 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,512 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,516 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,517 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:49,551 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,564 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,577 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:49,577 INFO L235 Elim1Store]: Index analysis took 253 ms [2019-08-05 11:03:49,579 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 82 [2019-08-05 11:03:49,580 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:53,056 WARN L188 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 196 DAG size of output: 195 [2019-08-05 11:03:53,057 INFO L567 ElimStorePlain]: treesize reduction 5, result has 99.1 percent of original size [2019-08-05 11:03:53,083 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,086 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,090 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,097 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,100 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,108 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,111 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,117 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,130 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,136 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,144 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,153 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,166 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,172 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,179 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,186 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,195 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,203 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,211 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,215 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,219 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,222 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,227 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,230 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,241 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,246 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,249 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,256 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:53,256 INFO L235 Elim1Store]: Index analysis took 177 ms [2019-08-05 11:03:53,258 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 101 [2019-08-05 11:03:53,259 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:54,572 WARN L188 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 192 [2019-08-05 11:03:54,573 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:03:54,591 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,595 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,598 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,600 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,602 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,605 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,610 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,613 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,615 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,617 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,620 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,624 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,630 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:54,633 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,640 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,643 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:54,646 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 87 [2019-08-05 11:03:54,648 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:55,620 WARN L188 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2019-08-05 11:03:55,620 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:03:55,637 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,639 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,642 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,644 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,646 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,648 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,650 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,653 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,655 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,657 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,659 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,661 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,663 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,665 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,666 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,668 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,671 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,673 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,676 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,680 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,681 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,683 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,685 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,687 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,688 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,690 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,693 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,696 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:55,698 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 101 [2019-08-05 11:03:55,699 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:56,530 WARN L188 SmtUtils]: Spent 830.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2019-08-05 11:03:56,531 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:03:56,543 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,545 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,546 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,548 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,550 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,552 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,565 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,567 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,587 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,602 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,605 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,607 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,610 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,612 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,615 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,641 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,643 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,644 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,647 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,654 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,656 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,659 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:56,982 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2019-08-05 11:03:56,983 INFO L341 Elim1Store]: treesize reduction 34, result has 87.3 percent of original size [2019-08-05 11:03:56,983 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 98 treesize of output 328 [2019-08-05 11:03:56,987 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:56,999 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,000 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,002 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,004 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,007 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,009 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,010 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,011 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,013 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,015 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,016 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,018 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,019 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,021 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,023 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,024 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,026 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,027 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,028 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:03:57,030 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,032 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,033 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,035 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,036 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:03:57,039 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 94 [2019-08-05 11:03:57,040 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-08-05 11:03:57,539 WARN L188 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 177 [2019-08-05 11:03:57,539 INFO L567 ElimStorePlain]: treesize reduction 266, result has 66.2 percent of original size [2019-08-05 11:03:57,544 INFO L496 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 5 dim-2 vars, End of recursive call: 14 dim-0 vars, and 6 xjuncts. [2019-08-05 11:03:57,544 INFO L221 ElimStorePlain]: Needed 7 recursive calls to eliminate 17 variables, input treesize:575, output treesize:521 [2019-08-05 11:03:57,923 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-08-05 11:03:57,951 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:03:57,951 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:03:57,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-08-05 11:03:57,952 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-05 11:03:57,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-05 11:03:57,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=30, Unknown=1, NotChecked=0, Total=42 [2019-08-05 11:03:57,953 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2019-08-05 11:04:32,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:04:32,955 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-08-05 11:04:32,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 11:04:32,956 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-08-05 11:04:32,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:04:32,956 INFO L225 Difference]: With dead ends: 9 [2019-08-05 11:04:32,956 INFO L226 Difference]: Without dead ends: 9 [2019-08-05 11:04:32,957 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=11, Invalid=30, Unknown=1, NotChecked=0, Total=42 [2019-08-05 11:04:32,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-08-05 11:04:32,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-08-05 11:04:32,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 11:04:32,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 11:04:32,959 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-08-05 11:04:32,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:04:32,959 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 11:04:32,959 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-05 11:04:32,960 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 11:04:32,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-05 11:04:32,960 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:04:32,960 INFO L399 BasicCegarLoop]: trace histogram [5, 1, 1, 1] [2019-08-05 11:04:32,960 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:04:32,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:04:32,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1860894151, now seen corresponding path program 5 times [2019-08-05 11:04:32,962 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:04:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:04:32,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 7 conjunts are in the unsatisfiable core [2019-08-05 11:04:32,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:04:33,086 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:04:33,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:04:33,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-08-05 11:04:33,087 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-05 11:04:33,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-05 11:04:33,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-08-05 11:04:33,088 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-08-05 11:04:33,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:04:33,116 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-08-05 11:04:33,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 11:04:33,117 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-08-05 11:04:33,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:04:33,117 INFO L225 Difference]: With dead ends: 6 [2019-08-05 11:04:33,117 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:04:33,118 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2019-08-05 11:04:33,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:04:33,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:04:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:04:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:04:33,119 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-08-05 11:04:33,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:04:33,119 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:04:33,120 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-05 11:04:33,120 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:04:33,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:04:33,124 INFO L202 PluginConnector]: Adding new model test-bitfields-2.1_false-valid-free.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:04:33 BoogieIcfgContainer [2019-08-05 11:04:33,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:04:33,127 INFO L168 Benchmark]: Toolchain (without parser) took 51555.60 ms. Allocated memory was 140.5 MB in the beginning and 292.6 MB in the end (delta: 152.0 MB). Free memory was 109.2 MB in the beginning and 235.2 MB in the end (delta: -126.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:33,127 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory is still 110.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:04:33,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.76 ms. Allocated memory is still 140.5 MB. Free memory was 109.2 MB in the beginning and 107.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:33,129 INFO L168 Benchmark]: Boogie Preprocessor took 33.04 ms. Allocated memory is still 140.5 MB. Free memory was 107.1 MB in the beginning and 105.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:33,129 INFO L168 Benchmark]: RCFGBuilder took 467.21 ms. Allocated memory is still 140.5 MB. Free memory was 105.9 MB in the beginning and 86.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:33,130 INFO L168 Benchmark]: TraceAbstraction took 51008.82 ms. Allocated memory was 140.5 MB in the beginning and 292.6 MB in the end (delta: 152.0 MB). Free memory was 86.9 MB in the beginning and 235.2 MB in the end (delta: -148.3 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:33,133 INFO L335 ainManager$Toolchain]: ####################### 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 140.5 MB. Free memory is still 110.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.76 ms. Allocated memory is still 140.5 MB. Free memory was 109.2 MB in the beginning and 107.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.04 ms. Allocated memory is still 140.5 MB. Free memory was 107.1 MB in the beginning and 105.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 467.21 ms. Allocated memory is still 140.5 MB. Free memory was 105.9 MB in the beginning and 86.9 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 51008.82 ms. Allocated memory was 140.5 MB in the beginning and 292.6 MB in the end (delta: 152.0 MB). Free memory was 86.9 MB in the beginning and 235.2 MB in the end (delta: -148.3 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 214]: 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, 5 locations, 1 error locations. SAFE Result, 50.9s OverallTime, 6 OverallIterations, 5 TraceHistogramMax, 35.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 16 SDtfs, 0 SDslu, 11 SDs, 0 SdLazy, 62 SolverSat, 6 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 34.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=5, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 14.9s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 27 ConstructedInterpolants, 5 QuantifiedInterpolants, 9235 SizeOfPredicates, 30 NumberOfNonLiveVariables, 738 ConjunctsInSsa, 62 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 15/35 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...